From 37ed970319ab83dd1f33c3b7acfed05a7372b34f Mon Sep 17 00:00:00 2001
From: Markus Gans <guru@server.home.net>
Date: Sun, 25 Aug 2019 22:16:00 +0200
Subject: [PATCH] More use of direct initializations

---
 ChangeLog                          |   3 +
 examples/7segment.cpp              |   4 +-
 examples/calculator.cpp            |  38 +++--
 examples/checklist.cpp             |   2 +-
 examples/choice.cpp                |  10 +-
 examples/keyboard.cpp              |   2 +-
 examples/listbox.cpp               |   4 +-
 examples/listview.cpp              |   2 +-
 examples/mandelbrot.cpp            |  41 +++--
 examples/menu.cpp                  |   2 +-
 examples/mouse.cpp                 |  18 +--
 examples/opti-move.cpp             |  25 ++-
 examples/scrollview.cpp            |   4 +-
 examples/string-operations.cpp     |  52 +++---
 examples/term-attributes.cpp       |   4 +-
 examples/termcap.cpp               |  11 +-
 examples/timer.cpp                 |   2 +-
 examples/transparent.cpp           |   2 +-
 examples/ui.cpp                    |  10 +-
 examples/watch.cpp                 |   7 +-
 examples/windows.cpp               |   6 +-
 src/fapplication.cpp               |  56 +++----
 src/fbutton.cpp                    |  41 +++--
 src/fbuttongroup.cpp               |  20 ++-
 src/fcheckmenuitem.cpp             |   2 +-
 src/fdialog.cpp                    |  50 +++---
 src/ffiledialog.cpp                |  71 ++++-----
 src/fkeyboard.cpp                  |  42 +++--
 src/flabel.cpp                     |  19 ++-
 src/flineedit.cpp                  |  33 ++--
 src/flistbox.cpp                   |  83 ++++------
 src/flistview.cpp                  |  58 ++++---
 src/fmenu.cpp                      |  25 ++-
 src/fmenubar.cpp                   |  24 +--
 src/fmenuitem.cpp                  |  12 +-
 src/fmessagebox.cpp                |  32 ++--
 src/fmouse.cpp                     |  54 +++----
 src/fobject.cpp                    |  25 ++-
 src/foptiattr.cpp                  |  14 +-
 src/foptimove.cpp                  |  37 ++---
 src/fprogressbar.cpp               |   2 +-
 src/frect.cpp                      |   4 +-
 src/fscrollbar.cpp                 |  34 ++--
 src/fscrollview.cpp                |  31 ++--
 src/fstatusbar.cpp                 |  32 ++--
 src/fstring.cpp                    | 248 +++++++++++------------------
 src/fswitch.cpp                    |   8 +-
 src/fterm.cpp                      |  92 +++++------
 src/ftermbuffer.cpp                |   9 +-
 src/ftermcap.cpp                   |  38 ++---
 src/ftermcapquirks.cpp             |   6 +-
 src/ftermdebugdata.cpp             |   4 +-
 src/ftermdetection.cpp             | 105 ++++++------
 src/ftermfreebsd.cpp               |  18 +--
 src/ftermios.cpp                   |  12 +-
 src/ftermlinux.cpp                 |  57 ++++---
 src/ftermopenbsd.cpp               |  10 +-
 src/ftermxterminal.cpp             |  48 +++---
 src/ftextview.cpp                  |  41 +++--
 src/ftogglebutton.cpp              |   8 +-
 src/ftooltip.cpp                   |  15 +-
 src/fvterm.cpp                     | 226 ++++++++++++--------------
 src/fwidget.cpp                    |  99 ++++++------
 src/fwindow.cpp                    |  22 +--
 src/include/final/fdialog.h        |   2 +-
 src/include/final/flistbox.h       |   2 +-
 src/include/final/flistview.h      |   4 +-
 src/include/final/fmessagebox.h    |  10 +-
 src/include/final/fobject.h        |   4 +-
 src/include/final/fstatusbar.h     |   2 +-
 src/include/final/fstring.h        |   2 +-
 src/include/final/fsystemimpl.h    |   4 +-
 src/include/final/ftermdetection.h |  38 ++---
 73 files changed, 979 insertions(+), 1205 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 4366dc81..f5557143 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,6 @@
+2019-08-25  Markus Gans  <guru.mail@muenster.de>
+	* More use of direct initializations
+
 2019-08-18  Markus Gans  <guru.mail@muenster.de>
 	* Solved problem detecting terminal size on quick changes
 	* Update VTerm information only in case of changes
diff --git a/examples/7segment.cpp b/examples/7segment.cpp
index b784c0cd..e7761fa5 100644
--- a/examples/7segment.cpp
+++ b/examples/7segment.cpp
@@ -136,7 +136,7 @@ void SegmentView::hexEncoding()
 //----------------------------------------------------------------------
 void SegmentView::get7Segment (const wchar_t c)
 {
-  for (int i = 0; i < 3; i++)
+  for (int i{0}; i < 3; i++)
     line[i].clear();
 
   switch ( c )
@@ -207,7 +207,7 @@ void SegmentView::draw()
     FColorPair color(fc::LightRed, fc::Black);
     get7Segment(ch);
 
-    for (std::size_t i = 0; i < 3; i++)
+    for (std::size_t i{0}; i < 3; i++)
       tbuffer[i] << color << line[i] << " ";
   }
 
diff --git a/examples/calculator.cpp b/examples/calculator.cpp
index af97ee2f..36d2f31d 100644
--- a/examples/calculator.cpp
+++ b/examples/calculator.cpp
@@ -35,7 +35,7 @@ using finalcut::FPoint;
 using finalcut::FSize;
 using finalcut::FColorPair;
 
-constexpr lDouble PI = 3.141592653589793238L;
+constexpr lDouble PI{3.141592653589793238L};
 
 
 //----------------------------------------------------------------------
@@ -255,7 +255,7 @@ Calc::Calc (FWidget* parent)
   setText ("Calculator");
   setGeometry (FPoint(19, 6), FSize(37, 18));
 
-  for (std::size_t key = 0; key < Calc::NUM_OF_BUTTONS; key++)
+  for (std::size_t key{0}; key < Calc::NUM_OF_BUTTONS; key++)
   {
     auto btn = std::make_shared<Button>(this);
     button_no[key] = key;
@@ -264,11 +264,9 @@ Calc::Calc (FWidget* parent)
       btn->setGeometry(FPoint(30, 15), FSize(5, 3));
     else
     {
-      int x, y;
-      std::size_t n;
-      ( key <= Three ) ? n = 0 : n = 1;
-      x = int(key + n) % 5 * 7 + 2;
-      y = int(key + n) / 5 * 2 + 3;
+      std::size_t n = ( key <= Three ) ? 0 : 1;
+      int x = int(key + n) % 5 * 7 + 2;
+      int y = int(key + n) / 5 * 2 + 3;
       btn->setGeometry(FPoint(x, y), FSize(5, 1));
     }
 
@@ -311,7 +309,7 @@ Calc::~Calc()
 //----------------------------------------------------------------------
 void Calc::drawDispay()
 {
-  finalcut::FString display = input;
+  finalcut::FString display(input);
 
   if ( display.isNull() || display.isEmpty()  )
     display = L'0';
@@ -346,11 +344,11 @@ void Calc::drawDispay()
 
   if ( isNewFont() )
   {
-    wchar_t bottom_line     = fc::NF_border_line_bottom;
-    wchar_t top_bottom_line = fc::NF_border_line_up_and_down;
-    wchar_t top_line        = fc::NF_border_line_upper;
-    wchar_t right_line      = fc::NF_rev_border_line_right;
-    wchar_t left_line       = fc::NF_border_line_left;
+    wchar_t bottom_line     {fc::NF_border_line_bottom};
+    wchar_t top_bottom_line {fc::NF_border_line_up_and_down};
+    wchar_t top_line        {fc::NF_border_line_upper};
+    wchar_t right_line      {fc::NF_rev_border_line_right};
+    wchar_t left_line       {fc::NF_border_line_left};
     print() << FPoint(3, 2) << finalcut::FString(33, bottom_line);
     print() << FPoint(2, 3) << right_line;
     print() << FPoint(36, 3) << left_line;
@@ -365,12 +363,12 @@ void Calc::drawDispay()
   }
   else
   {
-    wchar_t vertical_and_right  = fc::BoxDrawingsVerticalAndRight;
-    wchar_t horizontal          = fc::BoxDrawingsHorizontal;
-    wchar_t vertical_and_left   = fc::BoxDrawingsVerticalAndLeft;
-    finalcut::FString separator = finalcut::FString(vertical_and_right)
+    wchar_t vertical_and_right {fc::BoxDrawingsVerticalAndRight};
+    wchar_t horizontal         {fc::BoxDrawingsHorizontal};
+    wchar_t vertical_and_left  {fc::BoxDrawingsVerticalAndLeft};
+    finalcut::FString separator ( finalcut::FString(vertical_and_right)
                                 + finalcut::FString(35, horizontal)
-                                + finalcut::FString(vertical_and_left);
+                                + finalcut::FString(vertical_and_left) );
     print() << FPoint(1, 4) << separator;
   }
 }
@@ -609,7 +607,7 @@ void Calc::pi (lDouble& x)
 //----------------------------------------------------------------------
 void Calc::open_bracket (lDouble&)
 {
-  stack_data d = { a, infix_operator };
+  stack_data d{ a, infix_operator };
   bracket_stack.push(d);
   clearInfixOperator();
   input = "";
@@ -906,7 +904,7 @@ lDouble& Calc::getValue()
 //----------------------------------------------------------------------
 void Calc::setDisplay (lDouble d)
 {
-  char buffer[33];
+  char buffer[33]{};
   snprintf (buffer, sizeof(buffer), "%32.11Lg", d);
   input = buffer;
 }
diff --git a/examples/checklist.cpp b/examples/checklist.cpp
index a672cd87..4828f8e8 100644
--- a/examples/checklist.cpp
+++ b/examples/checklist.cpp
@@ -132,7 +132,7 @@ void CheckList::populate()
 
   constexpr int lastItem = int(sizeof(list) / sizeof(list[0])) - 1;
 
-  for (int i = 0; i <= lastItem; i++)
+  for (int i{0}; i <= lastItem; i++)
   {
     const finalcut::FStringList line (&list[i][0], &list[i][0] + 2);
     auto iter = listView.insert (line);
diff --git a/examples/choice.cpp b/examples/choice.cpp
index c3c5235c..ef0374d7 100644
--- a/examples/choice.cpp
+++ b/examples/choice.cpp
@@ -97,7 +97,7 @@ void preset (std::vector<FRadioButtonPtr>& os)
 //----------------------------------------------------------------------
 int main (int argc, char* argv[])
 {
-  finalcut::FString label_text = "no OS";
+  finalcut::FString label_text("no OS");
 
   // Create the application object
   finalcut::FApplication app(argc, argv);
@@ -106,8 +106,8 @@ int main (int argc, char* argv[])
     finalcut::FDialog dgl(&app);
     dgl.setModal();
     dgl.setText ("UNIX select");
-    std::size_t w = 20;
-    std::size_t h = 13;
+    std::size_t w{20};
+    std::size_t h{13};
     int x = int(app.getDesktopWidth() - w) / 2;
     int y = int(app.getDesktopHeight() - h) / 2;
     dgl.setGeometry (FPoint(x, y), FSize(w, h));
@@ -123,7 +123,7 @@ int main (int argc, char* argv[])
     // Set the radio button geometry
     // => checkButtonGroup.setScrollSize(...) is not required
     //    because a FButtonGroup is self-adjusting
-    for (uInt i = 0; i < os.size(); i++)
+    for (uInt i{0}; i < os.size(); i++)
       os[i]->setGeometry(FPoint(1, int(1 + i)), FSize(12, 1));
 
     preset(os);
@@ -148,7 +148,7 @@ int main (int argc, char* argv[])
     dgl.show();
 
     // Get the checked radio button text
-    for (int n = 1; n <= int(checkButtonGroup.getCount()); n++)
+    for (int n{1}; n <= int(checkButtonGroup.getCount()); n++)
     {
       if ( checkButtonGroup.isChecked(n) )
       {
diff --git a/examples/keyboard.cpp b/examples/keyboard.cpp
index 6bae910c..a2635b3e 100644
--- a/examples/keyboard.cpp
+++ b/examples/keyboard.cpp
@@ -54,7 +54,7 @@ Keyboard::Keyboard (finalcut::FWidget* parent)
 void Keyboard::onKeyPress (finalcut::FKeyEvent* ev)
 {
   FKey key_id = ev->key();
-  bool is_last_line = false;
+  bool is_last_line{false};
 
   if ( getPrintPos().getY() == int(getDesktopHeight()) )
     is_last_line = true;
diff --git a/examples/listbox.cpp b/examples/listbox.cpp
index 9573056d..de366e85 100644
--- a/examples/listbox.cpp
+++ b/examples/listbox.cpp
@@ -119,12 +119,12 @@ Listbox::Listbox (FWidget* parent)
   list1.setGeometry(FPoint(2, 1), FSize(18, 10));
   list1.setText ("FListBoxItem");
 
-  for (int i = 1; i < 30; i++)
+  for (int i{1}; i < 30; i++)
     list1.insert (L"----- " + (FString() << i) + L" -----");
 
   // listbox 2
   //----------
-  for (double i = 1; i<=15; i++)
+  for (double i{1.0}; i <= 15.0; i++)
     double_list.push_back(2 * i + (i / 100));
 
   list2.setGeometry(FPoint(21, 1), FSize(10, 10));
diff --git a/examples/listview.cpp b/examples/listview.cpp
index e0f95bee..da2e16e1 100644
--- a/examples/listview.cpp
+++ b/examples/listview.cpp
@@ -179,7 +179,7 @@ void Listview::populate()
 
   constexpr int lastItem = int(sizeof(weather) / sizeof(weather[0])) - 1;
 
-  for (int i = 0; i <= lastItem; i++)
+  for (int i{0}; i <= lastItem; i++)
   {
     finalcut::FStringList line (&weather[i][0], &weather[i][0] + 5);
     listView.insert (line);
diff --git a/examples/mandelbrot.cpp b/examples/mandelbrot.cpp
index 71242c05..ba43be9e 100644
--- a/examples/mandelbrot.cpp
+++ b/examples/mandelbrot.cpp
@@ -68,42 +68,37 @@ Mandelbrot::~Mandelbrot()
 //----------------------------------------------------------------------
 void Mandelbrot::draw()
 {
-  int iter, max_iter;
-  int Cols, Lines, xoffset, yoffset, current_line;
-  double x, y, xtemp, x0, y0, dX, dY;
-  double x_min, x_max, y_min, y_max;
-
   finalcut::FDialog::draw();
 
-  x_min = -2.20;
-  x_max =  1.00;
-  y_min = -1.05;
-  y_max =  1.05;
-  max_iter = 99;
+  double x_min{-2.20};
+  double x_max{+1.00};
+  double y_min{-1.05};
+  double y_max{+1.05};
+  int max_iter{99};
 
-  xoffset = 2;
-  yoffset = 2;
-  current_line = 0;
-  Cols  = int(getClientWidth());
-  Lines = int(getClientHeight());
+  int xoffset{2};
+  int yoffset{2};
+  int current_line{0};
+  int Cols  = int(getClientWidth());
+  int Lines = int(getClientHeight());
 
-  dX = (x_max - x_min) / (Cols - 1);
-  dY = (y_max - y_min) / Lines;
+  double dX = (x_max - x_min) / (Cols - 1);
+  double dY = (y_max - y_min) / Lines;
 
-  for (y0 = y_min; y0 < y_max && current_line < Lines; y0 += dY)
+  for (double y0 = y_min; y0 < y_max && current_line < Lines; y0 += dY)
   {
     current_line++;
     print() << FPoint(xoffset, yoffset + current_line);
 
-    for (x0 = x_min; x0 < x_max; x0 += dX)
+    for (double x0 = x_min; x0 < x_max; x0 += dX)
     {
-      x = 0.0;
-      y = 0.0;
-      iter = 0;
+      double x{0.0};
+      double y{0.0};
+      int iter{0};
 
       while ( x * x + y * y < 4 && iter < max_iter )
       {
-        xtemp = x * x - y * y + x0;
+        double xtemp = x * x - y * y + x0;
         y = 2 * x * y + y0;
         x = xtemp;
         iter++;
diff --git a/examples/menu.cpp b/examples/menu.cpp
index 9d66d7f5..cebcce8c 100644
--- a/examples/menu.cpp
+++ b/examples/menu.cpp
@@ -264,7 +264,7 @@ void Menu::configureBorderMenuItems()
 //----------------------------------------------------------------------
 void Menu::defaultCallback (finalcut::FMenuList* mb)
 {
-  for (uInt i = 1; i <= mb->getCount(); i++)
+  for (uInt i{1}; i <= mb->getCount(); i++)
   {
     auto item = mb->getItem(int(i));
 
diff --git a/examples/mouse.cpp b/examples/mouse.cpp
index fd237ef2..ee69f4a5 100644
--- a/examples/mouse.cpp
+++ b/examples/mouse.cpp
@@ -108,7 +108,7 @@ void ColorChooser::onMouseDown (finalcut::FMouseEvent* ev)
   if ( ev->getButton() == fc::MiddleButton )
     return;
 
-  for (int c = 0; c < 16; c++)
+  for (int c{0}; c < 16; c++)
   {
     int xmin = 2 + (c / 8) * 3;
     int xmax = 4 + (c / 8) * 3;
@@ -133,7 +133,7 @@ void ColorChooser::draw()
   setColor();
   drawBorder();
 
-  for (FColor c = 0; c < 16; c++)
+  for (FColor c{0}; c < 16; c++)
   {
     print() << FPoint(2 + (c / 8) * 3, 3 + c % 8);
 
@@ -249,7 +249,7 @@ Brushes::~Brushes()
 //----------------------------------------------------------------------
 void Brushes::draw()
 {
-  int pos;
+  int pos{};
   setColor();
   drawBorder();
   print() << FPoint(2, 3)
@@ -439,7 +439,7 @@ void MouseDraw::draw()
 
   if ( isNewFont() )
   {
-    for (int y = 2; y < y_max; y++)
+    for (int y{2}; y < y_max; y++)
     {
       print() << FPoint(10, y)
               << fc::NF_rev_border_line_right;
@@ -453,7 +453,7 @@ void MouseDraw::draw()
     print() << FPoint(10, 2)
             << fc::BoxDrawingsDownAndHorizontal;
 
-    for (int y = 3; y < y_max; y++)
+    for (int y{3}; y < y_max; y++)
     {
       print() << FPoint(10, y) << fc::BoxDrawingsVertical;
     }
@@ -503,10 +503,10 @@ void MouseDraw::drawCanvas()
     , x_end = canvas->width
     , w_line_len = print_area->width + print_area->right_shadow;
 
-  for (int y = 0; y < y_end; y++)  // line loop
+  for (int y{0}; y < y_end; y++)  // line loop
   {
-    finalcut::charData* canvaschar;  // canvas character
-    finalcut::charData* winchar;     // window character
+    finalcut::charData* canvaschar{};  // canvas character
+    finalcut::charData* winchar{};     // window character
     canvaschar = &canvas->text[y * x_end];
     winchar = &print_area->text[(ay + y) * w_line_len + ax];
     std::memcpy ( winchar
@@ -526,7 +526,7 @@ void MouseDraw::drawCanvas()
 //----------------------------------------------------------------------
 void MouseDraw::adjustSize()
 {
-  std::size_t w = 60, h = 18;
+  std::size_t w{60}, h{18};
   int x = 1 + int((getParentWidget()->getWidth() - w) / 2);
   int y = 1 + int((getParentWidget()->getHeight() - h) / 2);
   setGeometry (FPoint(x, y), FSize(w, h), false);
diff --git a/examples/opti-move.cpp b/examples/opti-move.cpp
index 8d8a8668..9151716b 100644
--- a/examples/opti-move.cpp
+++ b/examples/opti-move.cpp
@@ -30,7 +30,7 @@
 static finalcut::FVTerm* terminal;
 
 // Global FApplication object
-static finalcut::FApplication* app = nullptr;
+static finalcut::FApplication* app{nullptr};
 
 // function prototype
 bool keyPressed();
@@ -44,12 +44,13 @@ void move (int, int, int, int);
 bool keyPressed()
 {
   // Waiting for keypress
-  struct termios save, t;
-  bool ret;
+
+  struct termios save{};
+  bool ret{false};
   std::cout << "\nPress any key to continue...";
   fflush(stdout);
   tcgetattr (STDIN_FILENO, &save);
-  t = save;
+  struct termios t = save;
   t.c_lflag &= uInt(~(ICANON | ECHO));
   tcsetattr (STDIN_FILENO, TCSANOW, &t);
 
@@ -89,10 +90,8 @@ void term_boundaries (int& x, int& y)
 void move (int xold, int yold, int xnew, int ynew)
 {
   // prints the cursor move escape sequence
-  std::string sequence;
-  char* buffer;
-  char  from[26], to[26], byte[20];
-  uInt  len;
+  std::string sequence{};
+  char  from[26]{}, to[26]{}, byte[20]{};
   const std::string ctrl_character[] =
   {
     "NUL", "SOH", "STX", "ETX", "EOT", "ENQ", "ACK", "BEL",
@@ -111,8 +110,8 @@ void move (int xold, int yold, int xnew, int ynew)
             << std::left << std::setw(10) << to
             << " ";
   // get the move string
-  buffer = finalcut::FTerm::moveCursorString (xold, yold, xnew, ynew);
-  len    = uInt(std::strlen(buffer));
+  char* buffer = finalcut::FTerm::moveCursorString (xold, yold, xnew, ynew);
+  uInt  len    = uInt(std::strlen(buffer));
 
   for (uInt i = 0; i < len; i++)
   {
@@ -142,8 +141,6 @@ void move (int xold, int yold, int xnew, int ynew)
 //----------------------------------------------------------------------
 int main (int argc, char* argv[])
 {
-  int xmax, ymax;
-
   // Create the application object
   finalcut::FApplication TermApp(argc, argv);
 
@@ -152,8 +149,8 @@ int main (int argc, char* argv[])
   app = &TermApp;
 
   // Get screen dimension
-  xmax = int(TermApp.getDesktopWidth() - 1);
-  ymax = int(TermApp.getDesktopHeight() - 1);
+  int xmax = int(TermApp.getDesktopWidth() - 1);
+  int ymax = int(TermApp.getDesktopHeight() - 1);
   finalcut::FString line(std::size_t(xmax) + 1, '-');
 
   // Place the cursor in the upper left corner
diff --git a/examples/scrollview.cpp b/examples/scrollview.cpp
index ee7a2a49..b4060a82 100644
--- a/examples/scrollview.cpp
+++ b/examples/scrollview.cpp
@@ -138,11 +138,11 @@ void Scrollview::draw()
   setColor (wc.label_inactive_fg, wc.dialog_bg);
   clearArea();
 
-  for (int y = 0; y < int(getScrollHeight()); y++)
+  for (int y{0}; y < int(getScrollHeight()); y++)
   {
     print() << FPoint(1, 1 + y);
 
-    for (int x = 0; x < int(getScrollWidth()); x++)
+    for (int x{0}; x < int(getScrollWidth()); x++)
       print (32 + ((x + y) % 0x5f));
   }
 
diff --git a/examples/string-operations.cpp b/examples/string-operations.cpp
index 0d44ae8a..8b0d695d 100644
--- a/examples/string-operations.cpp
+++ b/examples/string-operations.cpp
@@ -3,7 +3,7 @@
 *                                                                      *
 * This file is part of the Final Cut widget toolkit                    *
 *                                                                      *
-* Copyright 2012-2018 Markus Gans                                      *
+* Copyright 2012-2019 Markus Gans                                      *
 *                                                                      *
 * The Final Cut is free software; you can redistribute it and/or       *
 * modify it under the terms of the GNU Lesser General Public License   *
@@ -101,7 +101,7 @@ void inputStreamExample()
 void outputStreamExample()
 {
   // Test: output stream (operator <<)
-  const finalcut::FString& out = L"A test string for 0 \x20ac";
+  const finalcut::FString out{L"A test string for 0 \x20ac"};
   std::cout << " outstream << " << out << std::endl;
 }
 
@@ -187,7 +187,7 @@ void streamingFromFStringExample()
   std::wcout << "stream out: " << stream_wstring << std::endl;
 
   // ...to wide character
-  wchar_t stream_wchar_t = L'\0';
+  wchar_t stream_wchar_t{L'\0'};
   finalcut::FString("w") >> stream_wchar_t;
   std::wcout << "stream out: " << stream_wchar_t << std::endl;
 
@@ -302,7 +302,7 @@ void streamToFloat()
 void CStringOutputExample()
 {
   // Test: c-string output
-  const finalcut::FString& out = L"A test string for 0 \x20ac";
+  const finalcut::FString out{L"A test string for 0 \x20ac"};
   printf ("     c_str:  \"%s\"\n", out.c_str());
 }
 
@@ -326,7 +326,7 @@ void copyIntoFString()
 void utf8StringOutputExample()
 {
   // Test: utf-8 string
-  const finalcut::FString& len = "длина́";
+  const finalcut::FString len{"длина́"};
   std::cout << "    length: \"" << len << "\" has "
             << len.getLength() << " characters" << std::endl;
 }
@@ -335,11 +335,11 @@ void utf8StringOutputExample()
 void letterCaseExample()
 {
   // Test: convert uppercase letter to lowercase
-  const finalcut::FString& lower = finalcut::FString(L"InPut").toLower();
+  const finalcut::FString lower{finalcut::FString(L"InPut").toLower()};
   std::wcout << L"   toLower: " << lower << std::endl;
 
   // Test: convert lowercase letter to uppercase
-  const finalcut::FString& upper = finalcut::FString("inPut").toUpper();
+  const finalcut::FString upper{finalcut::FString("inPut").toUpper()};
   std::cout << "   toUpper: " << upper << std::endl;
 }
 
@@ -414,7 +414,7 @@ void stringConcatenationExample()
 void stringCompareExample()
 {
   // Test: compare operators ==, <=, <, >=, >, !=
-  const finalcut::FString& cmp = "compare";
+  const finalcut::FString cmp{"compare"};
 
   if ( cmp == finalcut::FString("compare") )
     std::cout << "       cmp: == Ok" << std::endl;
@@ -451,10 +451,10 @@ void stringCompareExample()
 void stringSplittingExample()
 {
   // Test: split a string with a delimiter and returns a vector (array)
-  finalcut::FString split_str = "a,b,c,d";
+  finalcut::FString split_str{"a,b,c,d"};
   std::cout << "     split: \""
             << split_str << "\" into substrings ->";
-  finalcut::FStringList parts = split_str.split(",");
+  finalcut::FStringList parts{ split_str.split(",") };
   finalcut::FStringList::iterator it, end;
   end = parts.end();
 
@@ -468,7 +468,7 @@ void stringSplittingExample()
 void fromatStringExample()
 {
   // Test: format a string with sprintf
-  finalcut::FString formatStr = "";
+  finalcut::FString formatStr{""};
   std::cout << " formatted: "
             << formatStr.sprintf("sqrt(%d) = %d", 16, 4)
             << std::endl;
@@ -533,7 +533,7 @@ void convertToNumberExample()
 void convertNumberToStringExample()
 {
   // Test: convert integer and double value to a string
-  finalcut::FString num1, num2, num3;
+  finalcut::FString num1{}, num2{}, num3{};
   num1.setNumber(137u);
   num2.setNumber(-512);
   num3.setNumber(3.141592653589793238L, 12);
@@ -550,7 +550,7 @@ void formatedNumberExample()
 {
   // Test: convert and format a integer number with thousand separator
   std::setlocale (LC_NUMERIC, "");
-  finalcut::FString fnum1, fnum2;
+  finalcut::FString fnum1{}, fnum2{};
 #if defined(__LP64__) || defined(_LP64)
   // 64-bit architecture
   fnum1.setFormatedNumber(0xffffffffffffffffu, '\'');
@@ -570,7 +570,7 @@ void formatedNumberExample()
 void trimExample()
 {
   // Test: remove whitespace from the end of a string
-  const finalcut::FString& trim_str = "  A string \t";
+  const finalcut::FString& trim_str{"  A string \t"};
   std::wcout << "    rtrim: \""
              << trim_str.rtrim() << "\"" << std::endl;
 
@@ -587,8 +587,8 @@ void trimExample()
 void substringExample()
 {
   // Test: 11 characters from the left of the string
-  const finalcut::FString& alphabet = "a b c d e f g h i j k l m "
-                                      "n o p q r s t u v w x y z";
+  const finalcut::FString alphabet{ "a b c d e f g h i j k l m "
+                                    "n o p q r s t u v w x y z" };
   std::cout << "     left: \""
             << alphabet.left(11)   << "\"" << std::endl;
 
@@ -605,7 +605,7 @@ void substringExample()
 void insertExample()
 {
   // Test: insert a string at index position 7
-  finalcut::FString insert_str = "I am a string";
+  finalcut::FString insert_str{"I am a string"};
 
   try
   {
@@ -622,7 +622,7 @@ void insertExample()
 void indexExample()
 {
   // Test: get character access at a specified index position
-  finalcut::FString index(5);  // string with five characters
+  finalcut::FString index{5};  // string with five characters
   index = "index";
 
   try
@@ -642,7 +642,7 @@ void indexExample()
 void iteratorExample()
 {
   // Test: character access with std::iterator
-  const finalcut::FString& stringIterator = "iterator";
+  const finalcut::FString stringIterator{"iterator"};
   finalcut::FString::iterator iter;
   iter = stringIterator.begin();
   std::cout << " " << stringIterator << ": ";
@@ -662,7 +662,7 @@ void iteratorExample()
 void overwriteExample()
 {
   // Test: overwrite string at position 10 with "for t"
-  finalcut::FString overwrite_std = "Overwrite the rest";
+  finalcut::FString overwrite_std{"Overwrite the rest"};
   std::cout << "overwrite: "
             << overwrite_std.overwrite("for t", 10) << std::endl;
 }
@@ -671,7 +671,7 @@ void overwriteExample()
 void removeExample()
 {
   // Test: remove 2 characters at position 7
-  finalcut::FString remove_std = "A fast remove";
+  finalcut::FString remove_std{"A fast remove"};
   std::cout << "   remove: "
             << remove_std.remove(7, 2) << std::endl;
 }
@@ -680,7 +680,7 @@ void removeExample()
 void substringIncludeExample()
 {
   // Test: includes a substring (positive test)
-  finalcut::FString include_std = "string";
+  finalcut::FString include_std{"string"};
 
   if ( include_std.includes("ring") )
     std::cout << " includes: \""
@@ -706,7 +706,7 @@ void substringIncludeExample()
 void replaceExample()
 {
   // Test: find and replace a substring
-  finalcut::FString source_str = "computer and software";
+  finalcut::FString source_str{"computer and software"};
   const finalcut::FString& replace_str = \
       source_str.replace("computer", "hard-");
   std::cout << "  replace: "
@@ -717,7 +717,7 @@ void replaceExample()
 void tabToSpaceExample()
 {
   // Test: convert tabs to spaces
-  const finalcut::FString& tab_str = "1234\t5678";
+  const finalcut::FString tab_str{"1234\t5678"};
   std::cout << "      tab: "
             << tab_str.expandTabs() << std::endl;
 }
@@ -726,7 +726,7 @@ void tabToSpaceExample()
 void backspaceControlCharacterExample()
 {
   // Test: backspaces remove characters in the string
-  const finalcut::FString& bs_str = "t\b\bTesT\bt";
+  const finalcut::FString bs_str{"t\b\bTesT\bt"};
   std::cout << "backspace: "
             << bs_str.removeBackspaces() << std::endl;
 }
@@ -735,7 +735,7 @@ void backspaceControlCharacterExample()
 void deleteControlCharacterExample()
 {
   // Test: delete characters remove characters in the string
-  const finalcut::FString& del_str = "apple \177\177\177pietree";
+  const finalcut::FString del_str{"apple \177\177\177pietree"};
   std::cout << "   delete: "
             << del_str.removeDel() << std::endl;
 }
diff --git a/examples/term-attributes.cpp b/examples/term-attributes.cpp
index 0175030a..289550d8 100644
--- a/examples/term-attributes.cpp
+++ b/examples/term-attributes.cpp
@@ -261,7 +261,7 @@ void AttribDemo::printColorLine()
 {
   auto parent = static_cast<AttribDlg*>(getParent());
 
-  for (FColor color = 0; color < colors; color++)
+  for (FColor color{0}; color < colors; color++)
   {
     print() << FColorPair(color, parent->bgcolor) << " # ";
   }
@@ -439,7 +439,7 @@ void AttribDemo::draw()
     [&] { printProtected(); },
   };
 
-  for (std::size_t y = 0; y < getParentWidget()->getHeight() - 7; y++)
+  for (std::size_t y{0}; y < getParentWidget()->getHeight() - 7; y++)
   {
     print() << FPoint(1, 2 + int(y));
 
diff --git a/examples/termcap.cpp b/examples/termcap.cpp
index db1588d8..5669501f 100644
--- a/examples/termcap.cpp
+++ b/examples/termcap.cpp
@@ -181,8 +181,7 @@ void tcapNumeric (const std::string& name, int cap_num)
 //----------------------------------------------------------------------
 void tcapString (const std::string& name, const char cap_str[])
 {
-  uInt len;
-  std::string sequence;
+  std::string sequence{};
   std::cout << name << ": ";
 
   if ( cap_str == 0 )
@@ -191,9 +190,9 @@ void tcapString (const std::string& name, const char cap_str[])
     return;
   }
 
-  len = uInt(std::strlen(cap_str));
+  uInt len = uInt(std::strlen(cap_str));
 
-  for (uInt i = 0; i < len; i++)
+  for (uInt i{0}; i < len; i++)
   {
     uChar c = uChar(cap_str[i]);
 
@@ -298,7 +297,7 @@ void string()
   finalcut::FTermcap::tcap_map (&tcap_strings)[] \
       = finalcut::FTermcap::strings;
 
-  for (int n = 0; n <= data::getNumberOfItems(); n++ )
+  for (int n{0}; n <= data::getNumberOfItems(); n++ )
   {
     const std::string name = data::strings[n].name;
     const fc::termcaps cap = data::strings[n].cap;
@@ -311,7 +310,7 @@ void string()
 //----------------------------------------------------------------------
 int main (int argc, char* argv[])
 {
-  bool disable_alt_screen = true;
+  bool disable_alt_screen{true};
   finalcut::FApplication TermApp (argc, argv, disable_alt_screen);
 
   // Pointer to the global virtual terminal object
diff --git a/examples/timer.cpp b/examples/timer.cpp
index c0602547..4b9deae3 100644
--- a/examples/timer.cpp
+++ b/examples/timer.cpp
@@ -71,7 +71,7 @@ void Timer::draw()
 //----------------------------------------------------------------------
 void Timer::onTimer (finalcut::FTimerEvent* ev)
 {
-  bool is_last_line = false;
+  bool is_last_line{false};
   int timer_id = ev->getTimerId();
 
   if ( getPrintPos().getY() == int(getDesktopHeight()) )
diff --git a/examples/transparent.cpp b/examples/transparent.cpp
index 0a7f0a34..60d098e6 100644
--- a/examples/transparent.cpp
+++ b/examples/transparent.cpp
@@ -110,7 +110,7 @@ void Transparent::draw()
 
   finalcut::FString line(getClientWidth(), '.');
 
-  for (int n = 1; n <= int(getClientHeight()); n++)
+  for (int n{1}; n <= int(getClientHeight()); n++)
   {
     print() << FPoint(2, 2 + n) << line;
   }
diff --git a/examples/ui.cpp b/examples/ui.cpp
index 0b32a3ed..bf15de87 100644
--- a/examples/ui.cpp
+++ b/examples/ui.cpp
@@ -572,7 +572,7 @@ void MyDialog::initWidgets()
   myList.setMultiSelection();
   myList.reserve(100);
 
-  for (int z = 1; z < 100; z++)
+  for (int z{1}; z < 100; z++)
     myList.insert (finalcut::FString() << z << L" placeholder");
 
   // Text labels
@@ -930,7 +930,7 @@ void MyDialog::cb_updateNumber (finalcut::FWidget* widget, FDataPtr data)
   const auto& count = list.getCount();
   int select_num = 0;
 
-  for (std::size_t n = 1; n <= count; n++)
+  for (std::size_t n{1}; n <= count; n++)
     if ( list.isSelected(n) )
       select_num++;
 
@@ -1006,10 +1006,10 @@ void MyDialog::cb_setInput (finalcut::FWidget* widget, FDataPtr data)
 
 int main (int argc, char* argv[])
 {
-  const finalcut::FString ver = F_VERSION;  // Library version
-  const finalcut::FString title = "The FINAL CUT "
+  const finalcut::FString ver{F_VERSION};  // Library version
+  const finalcut::FString title { "The FINAL CUT "
                                 + ver
-                                + " (C) 2019 by Markus Gans";
+                                + " (C) 2019 by Markus Gans" };
 
   // Create the application object app
   finalcut::FApplication app(argc, argv);
diff --git a/examples/watch.cpp b/examples/watch.cpp
index 3240ed1b..236b4363 100644
--- a/examples/watch.cpp
+++ b/examples/watch.cpp
@@ -127,11 +127,10 @@ Watch::~Watch()
 //----------------------------------------------------------------------
 void Watch::printTime()
 {
-  finalcut::FString str;
-  std::tm now;
-  std::time_t t;
+  finalcut::FString str{};
+  std::tm now{};
 
-  t = std::time(0);  // get current time
+  std::time_t t = std::time(0);  // get current time
   localtime_r(&t, &now);
 
   if ( sec )
diff --git a/examples/windows.cpp b/examples/windows.cpp
index 895f49e6..93d0387a 100644
--- a/examples/windows.cpp
+++ b/examples/windows.cpp
@@ -98,8 +98,8 @@ SmallWindow::SmallWindow (finalcut::FWidget* parent)
   top_right_label.setEmphasis();
   top_right_label.setGeometry (FPoint(int(getClientWidth()) - 5, 1), FSize(6, 1));
 
-  finalcut::FString bottom_label_text = "resize\n"
-                                        "corner\n";
+  finalcut::FString bottom_label_text ( "resize\n"
+                                        "corner\n" );
   bottom_label_text += arrow_down;
   bottom_label = bottom_label_text;
   bottom_label.setAlignment (fc::alignRight);
@@ -263,7 +263,7 @@ Window::Window (finalcut::FWidget* parent)
   Statusbar.setMessage("Status bar message");
 
   // Generate data vector for the windows
-  for (int n = 1; n <= 6; n++)
+  for (int n{1}; n <= 6; n++)
   {
     auto win_dat = new win_data;
     win_dat->title.sprintf("Window %1d", n);
diff --git a/src/fapplication.cpp b/src/fapplication.cpp
index e301b38b..44d1fe41 100644
--- a/src/fapplication.cpp
+++ b/src/fapplication.cpp
@@ -38,26 +38,26 @@ namespace finalcut
 {
 
 // Global application object
-static FApplication* app_object = nullptr;
+static FApplication* app_object{nullptr};
 
 // Flag to exit the local event loop
-static bool app_exit_loop = false;
+static bool app_exit_loop{false};
 
 // Static attributes
-FWidget*       FWidget::main_widget          = nullptr;  // main application widget
-FWidget*       FWidget::active_window        = nullptr;  // the active window
-FWidget*       FWidget::focus_widget         = nullptr;  // has keyboard input focus
-FWidget*       FWidget::clicked_widget       = nullptr;  // is focused by click
-FWidget*       FWidget::open_menu            = nullptr;  // currently open menu
-FWidget*       FWidget::move_size_widget     = nullptr;  // move/size by keyboard
-FWidget*       FApplication::keyboard_widget = nullptr;  // has the keyboard focus
-FKeyboard*     FApplication::keyboard        = nullptr;  // keyboard access
-FMouseControl* FApplication::mouse           = nullptr;  // mouse control
-int            FApplication::loop_level      = 0;  // event loop level
-int            FApplication::quit_code       = 0;
-bool           FApplication::quit_now        = false;
+FWidget*       FWidget::main_widget          {nullptr};  // main application widget
+FWidget*       FWidget::active_window        {nullptr};  // the active window
+FWidget*       FWidget::focus_widget         {nullptr};  // has keyboard input focus
+FWidget*       FWidget::clicked_widget       {nullptr};  // is focused by click
+FWidget*       FWidget::open_menu            {nullptr};  // currently open menu
+FWidget*       FWidget::move_size_widget     {nullptr};  // move/size by keyboard
+FWidget*       FApplication::keyboard_widget {nullptr};  // has the keyboard focus
+FKeyboard*     FApplication::keyboard        {nullptr};  // keyboard access
+FMouseControl* FApplication::mouse           {nullptr};  // mouse control
+int            FApplication::loop_level      {0};  // event loop level
+int            FApplication::quit_code       {0};
+bool           FApplication::quit_now        {false};
 
-FApplication::eventQueue* FApplication::event_queue = nullptr;
+FApplication::eventQueue* FApplication::event_queue{nullptr};
 
 
 //----------------------------------------------------------------------
@@ -81,7 +81,7 @@ FApplication::FApplication ( const int& _argc
 
   if ( ! (_argc && _argv) )
   {
-    static char* empty = C_STR("");
+    static char* empty{C_STR("")};
     app_argc = 0;
     app_argv = static_cast<char**>(&empty);
   }
@@ -128,11 +128,10 @@ int FApplication::exec()  // run
 //----------------------------------------------------------------------
 int FApplication::enter_loop()  // event loop
 {
-  bool old_app_exit_loop;
   loop_level++;
   quit_now = false;
 
-  old_app_exit_loop = app_exit_loop;
+  bool old_app_exit_loop = app_exit_loop;
   app_exit_loop = false;
 
   while ( ! (quit_now || app_exit_loop) )
@@ -265,15 +264,13 @@ bool FApplication::eventInQueue()
 //----------------------------------------------------------------------
 bool FApplication::removeQueuedEvent (const FObject* receiver)
 {
-  bool retval;
-
   if ( ! eventInQueue() )
     return false;
 
   if ( ! receiver )
     return false;
 
-  retval = false;
+  bool retval{false};
   auto iter = event_queue->begin();
 
   while ( iter != event_queue->end() )
@@ -410,8 +407,6 @@ void FApplication::cmd_options (const int& argc, char* argv[])
 
   while ( true )
   {
-    int c, idx = 0;
-
     static struct option long_options[] =
     {
       {C_STR("encoding"),              required_argument, 0,  0 },
@@ -433,7 +428,8 @@ void FApplication::cmd_options (const int& argc, char* argv[])
     };
 
     opterr = 0;
-    c = getopt_long (argc, argv, "", long_options, &idx);
+    int idx{0};
+    int c = getopt_long (argc, argv, "", long_options, &idx);
 
     if ( c == -1 )
       break;
@@ -497,7 +493,7 @@ inline void FApplication::findKeyboardWidget()
 {
   // Find the widget that has the keyboard focus
 
-  FWidget* widget = nullptr;
+  FWidget* widget{nullptr};
   auto focus = getFocusWidget();
   auto move_size = getMoveSizeWidget();
 
@@ -710,7 +706,7 @@ bool FApplication::processDialogSwitchAccelerator()
 //----------------------------------------------------------------------
 bool FApplication::processAccelerator (const FWidget*& widget)
 {
-  bool accpt = false;
+  bool accpt{false};
 
   if ( widget
     && widget->accelerator_list
@@ -752,7 +748,7 @@ bool FApplication::processAccelerator (const FWidget*& widget)
 //----------------------------------------------------------------------
 bool FApplication::getMouseEvent()
 {
-  bool mouse_event_occurred = false;
+  bool mouse_event_occurred{false};
 
   if ( mouse && mouse->hasData() )
   {
@@ -834,7 +830,7 @@ void FApplication::closeOpenMenu()
       return;
   }
 
-  bool is_window_menu;
+  bool is_window_menu{false};
   auto super = menu->getSuperMenu();
 
   if ( super && menu->isWindowsMenu(super) )
@@ -912,7 +908,7 @@ void FApplication::sendMouseEvent()
     return;
 
   const auto& mouse_position = mouse->getPos();
-  int key_state = 0;
+  int key_state{0};
 
   if ( mouse->isShiftKeyPressed() )
     key_state |= fc::ShiftButton;
@@ -1179,7 +1175,7 @@ void FApplication::processCloseWidget()
 //----------------------------------------------------------------------
 bool FApplication::processNextEvent()
 {
-  uInt num_events = 0;
+  uInt num_events{0};
 
   processKeyboardEvent();
   processMouseEvent();
diff --git a/src/fbutton.cpp b/src/fbutton.cpp
index faa2fd9a..d82a242a 100644
--- a/src/fbutton.cpp
+++ b/src/fbutton.cpp
@@ -217,9 +217,9 @@ bool FButton::setDown (bool enable)
 void FButton::setText (const FString& txt)
 {
   if ( txt.isNull() )
-    text = "";
+    text.setString("");
   else
-    text = txt;
+    text.setString(txt);
 
   detectHotkey();
 }
@@ -227,8 +227,7 @@ void FButton::setText (const FString& txt)
 //----------------------------------------------------------------------
 void FButton::hide()
 {
-  std::size_t s, f, size;
-  FColor fg, bg;
+  FColor fg{}, bg{};
   auto parent_widget = getParentWidget();
   FWidget::hide();
 
@@ -244,16 +243,16 @@ void FButton::hide()
   }
 
   setColor (fg, bg);
-  s = hasShadow() ? 1 : 0;
-  f = isFlat() ? 1 : 0;
-  size = getWidth() + s + (f << 1);
+  std::size_t s = hasShadow() ? 1 : 0;
+  std::size_t f = isFlat() ? 1 : 0;
+  std::size_t size = getWidth() + s + (f << 1);
 
   if ( size == 0 )
     return;
 
   char* blank = createBlankArray(size + 1);
 
-  for (std::size_t y = 0; y < getHeight() + s + (f << 1); y++)
+  for (std::size_t y{0}; y < getHeight() + s + (f << 1); y++)
   {
     print() << FPoint(1 - int(f), 1 + int(y - f)) << blank;
   }
@@ -309,7 +308,7 @@ void FButton::onMouseDown (FMouseEvent* ev)
       getStatusBar()->drawMessage();
   }
 
-  FPoint tPos = ev->getTermPos();
+  FPoint tPos(ev->getTermPos());
 
   if ( getTermGeometry().contains(tPos) )
     setDown();
@@ -336,7 +335,7 @@ void FButton::onMouseMove (FMouseEvent* ev)
   if ( ev->getButton() != fc::LeftButton )
     return;
 
-  FPoint tPos = ev->getTermPos();
+  FPoint tPos(ev->getTermPos());
 
   if ( click_animation )
   {
@@ -465,7 +464,7 @@ inline std::size_t FButton::clickAnimationIndent (FWidget* parent_widget)
     setColor ( parent_widget->getForegroundColor()
              , parent_widget->getBackgroundColor() );
 
-  for (std::size_t  y = 1; y <= getHeight(); y++)
+  for (std::size_t y{1}; y <= getHeight(); y++)
   {
     print() << FPoint(1, int(y)) << ' ';  // clear one left █
   }
@@ -484,7 +483,7 @@ inline void FButton::clearRightMargin (FWidget* parent_widget)
     setColor ( parent_widget->getForegroundColor()
              , parent_widget->getBackgroundColor() );
 
-  for (int y = 1; y <= int(getHeight()); y++)
+  for (int y{1}; y <= int(getHeight()); y++)
   {
     if ( isMonochron() )
       setReverse(true);  // Light background
@@ -503,7 +502,7 @@ inline void FButton::drawMarginLeft()
 
   setColor (getForegroundColor(), button_bg);
 
-  for (std::size_t y = 0; y < getHeight(); y++)
+  for (std::size_t y{0}; y < getHeight(); y++)
   {
     print() << FPoint(1 + int(indent), 1 + int(y));
 
@@ -519,7 +518,7 @@ inline void FButton::drawMarginRight()
 {
   // Print right margin
 
-  for (std::size_t y = 0; y < getHeight(); y++)
+  for (std::size_t y{0}; y < getHeight(); y++)
   {
     print() << FPoint(int(getWidth() + indent), 1 + int(y));
 
@@ -538,19 +537,19 @@ inline void FButton::drawTopBottomBackground()
   if ( getHeight() < 2 )
     return;
 
-  for (std::size_t y = 0; y < vcenter_offset; y++)
+  for (std::size_t y{0}; y < vcenter_offset; y++)
   {
     print() << FPoint(2 + int(indent), 1 + int(y));
 
-    for (std::size_t x = 1; x < getWidth() - 1; x++)
+    for (std::size_t x{1}; x < getWidth() - 1; x++)
       print (space_char);  // █
   }
 
-  for (std::size_t y = vcenter_offset + 1; y < getHeight(); y++)
+  for (std::size_t y{vcenter_offset + 1}; y < getHeight(); y++)
   {
     print() << FPoint(2 + int(indent), 1 + int(y));
 
-    for (std::size_t x = 1; x < getWidth() - 1; x++)
+    for (std::size_t x{1}; x < getWidth() - 1; x++)
       print (space_char);  // █
   }
 }
@@ -558,7 +557,7 @@ inline void FButton::drawTopBottomBackground()
 //----------------------------------------------------------------------
 inline void FButton::drawButtonTextLine (wchar_t button_text[])
 {
-  std::size_t pos;
+  std::size_t pos{};
   print() << FPoint(2 + int(indent), 1 + int(vcenter_offset))
           << FColorPair (button_fg, button_bg);
 
@@ -584,7 +583,7 @@ inline void FButton::drawButtonTextLine (wchar_t button_text[])
   if ( active_focus && (isMonochron() || getMaxColor() < 16) )
     setBold();
 
-  for ( std::size_t z = 0
+  for ( std::size_t z{0}
       ; pos < center_offset + txtlength && z < getWidth() - 2
       ; z++, pos++)
   {
@@ -630,7 +629,7 @@ inline void FButton::drawButtonTextLine (wchar_t button_text[])
 //----------------------------------------------------------------------
 void FButton::draw()
 {
-  wchar_t* button_text;
+  wchar_t* button_text{};
   auto parent_widget = getParentWidget();
   txtlength = text.getLength();
   space_char = int(' ');
diff --git a/src/fbuttongroup.cpp b/src/fbuttongroup.cpp
index 5e4872bf..4ee2bcc8 100644
--- a/src/fbuttongroup.cpp
+++ b/src/fbuttongroup.cpp
@@ -116,7 +116,7 @@ bool FButtonGroup::setEnable (bool enable)
 //----------------------------------------------------------------------
 void FButtonGroup::setText (const FString& txt)
 {
-  text = txt;
+  text.setString(txt);
 
   if ( isEnabled() )
   {
@@ -183,8 +183,7 @@ bool FButtonGroup::hasCheckedButton() const
 //----------------------------------------------------------------------
 void FButtonGroup::hide()
 {
-  std::size_t size;
-  FColor fg, bg;
+  FColor fg{}, bg{};
   FWidget::hide();
   auto parent_widget = getParentWidget();
 
@@ -213,14 +212,14 @@ void FButtonGroup::hide()
   }
 
   setColor (fg, bg);
-  size = getWidth();
+  std::size_t size = getWidth();
 
   if ( size == 0 )
     return;
 
   char* blank = createBlankArray(size + 1);
 
-  for (int y = 0; y < int(getHeight()); y++)
+  for (int y{0}; y < int(getHeight()); y++)
   {
     FWidget::setPrintPos (FPoint(1, 1 + y));
     print (blank);
@@ -298,7 +297,7 @@ void FButtonGroup::checkScrollSize (const FRect& r)
 
   if ( ! scrollgeometry.contains(r) )
   {
-    FRect r_combined = scrollgeometry.combined(r);
+    FRect r_combined (scrollgeometry.combined(r));
     setScrollSize (r_combined.getSize());
   }
 }
@@ -424,12 +423,11 @@ void FButtonGroup::draw()
 //----------------------------------------------------------------------
 void FButtonGroup::drawLabel()
 {
-  wchar_t* LabelText;
-
   if ( text.isNull() || text.isEmpty() )
     return;
 
-  FString txt = " " + text + " ";
+  wchar_t* LabelText{};
+  FString txt{" " + text + " "};
   std::size_t length = txt.getLength();
 
   try
@@ -494,7 +492,7 @@ void FButtonGroup::drawText ( wchar_t LabelText[]
   else
     setColor(wc.label_inactive_fg, wc.label_inactive_bg);
 
-  for (std::size_t z = 0; z < length; z++)
+  for (std::size_t z{0}; z < length; z++)
   {
     if ( (z == hotkeypos) && flags.active )
     {
@@ -523,7 +521,7 @@ void FButtonGroup::directFocus()
 {
   if ( ! hasFocusedButton() )
   {
-    bool found_checked = false;
+    bool found_checked{false};
 
     if ( hasCheckedButton() && ! buttonlist.empty() )
     {
diff --git a/src/fcheckmenuitem.cpp b/src/fcheckmenuitem.cpp
index 0fa0c23c..53c608c7 100644
--- a/src/fcheckmenuitem.cpp
+++ b/src/fcheckmenuitem.cpp
@@ -62,7 +62,7 @@ void FCheckMenuItem::init (FWidget* parent)
 
   if ( isMenu(parent) )  // Parent is menu
   {
-    auto menu_ptr = static_cast<FMenu*>(parent);
+    auto menu_ptr{static_cast<FMenu*>(parent)};
     menu_ptr->has_checkable_items = true;
   }
 }
diff --git a/src/fdialog.cpp b/src/fdialog.cpp
index 5db733de..c49f4efe 100644
--- a/src/fdialog.cpp
+++ b/src/fdialog.cpp
@@ -167,7 +167,7 @@ int FDialog::exec()
 //----------------------------------------------------------------------
 void FDialog::setPos (const FPoint& pos, bool)
 {
-  FRect old_geometry, restore;
+
   setPos_error = false;
 
   // Avoid to move widget completely outside the terminal
@@ -185,7 +185,7 @@ void FDialog::setPos (const FPoint& pos, bool)
   const auto& shadow = getShadow();
   std::size_t width = getWidth() + shadow.getWidth();  // width + right shadow
   std::size_t height = getHeight() + shadow.getHeight();  // height + bottom shadow
-  old_geometry = getTermGeometryWithShadow();
+  FRect old_geometry (getTermGeometryWithShadow());
 
   // move to the new position
   FWindow::setPos(pos, false);
@@ -194,6 +194,10 @@ void FDialog::setPos (const FPoint& pos, bool)
   // restoring the non-covered terminal areas
   if ( getTermGeometry().overlap(old_geometry) )
   {
+    FRect restore{};
+    std::size_t d_width = std::size_t(std::abs(dx));
+    std::size_t d_height = std::size_t(std::abs(dy));
+
     // dx > 0 : move left
     // dx = 0 : move vertical
     // dx < 0 : move right
@@ -201,9 +205,6 @@ void FDialog::setPos (const FPoint& pos, bool)
     // dy = 0 : move horizontal
     // dy < 0 : move down
 
-    std::size_t d_width = std::size_t(std::abs(dx));
-    std::size_t d_height = std::size_t(std::abs(dy));
-
     if ( dx > 0 )
     {
       if ( dy > 0 )
@@ -295,7 +296,7 @@ void FDialog::setSize (const FSize& size, bool adjust)
 
   // get adjust width and height
   std::size_t w = getWidth() + shadow.getWidth();
-  std::size_t h = getHeight()+ shadow.getHeight();
+  std::size_t h = getHeight() + shadow.getHeight();
 
   // dw > 0 : scale down width
   // dw = 0 : scale only height
@@ -518,7 +519,7 @@ void FDialog::onMouseUp (FMouseEvent* ev)
       && titlebar_x < getTermX() + int(getWidth())
       && titlebar_y == int(getTermY()) )
     {
-      FPoint deltaPos = ms.termPos - titlebar_click_pos;
+      FPoint deltaPos(ms.termPos - titlebar_click_pos);
       move (deltaPos);
       titlebar_click_pos = ms.termPos;
     }
@@ -562,7 +563,7 @@ void FDialog::onMouseMove (FMouseEvent* ev)
 
   if ( ! titlebar_click_pos.isOrigin() )
   {
-    FPoint deltaPos = ms.termPos - titlebar_click_pos;
+    FPoint deltaPos(ms.termPos - titlebar_click_pos);
     move (deltaPos);
     titlebar_click_pos = ms.termPos;
   }
@@ -586,15 +587,14 @@ void FDialog::onMouseDoubleClick (FMouseEvent* ev)
     getZoomButtonWidth(),
     false  // mouse_over_menu
   };
-  int x, y;
 
   if ( ev->getButton() != fc::LeftButton )
     return;
 
-  x = getTermX();
-  y = getTermY();
+  int x = getTermX();
+  int y = getTermY();
   FRect title_button(x, y, 3, 1);
-  FPoint tPos = ms.termPos;
+  FPoint tPos(ms.termPos);
 
   if ( title_button.contains(tPos) )
   {
@@ -825,9 +825,9 @@ void FDialog::initDialogMenu()
     return;
   }
 
-  FPoint p = getPos();
+  FPoint p(getPos());
   p.y_ref()++;
-  dialog_menu->setPos (p);
+  dialog_menu->setPos(p);
   dgl_menuitem = dialog_menu->getItem();
   dgl_menuitem->ignorePadding();
   dgl_menuitem->unsetFocusable();
@@ -1093,8 +1093,8 @@ inline void FDialog::drawZoomedButton()
 void FDialog::drawTextBar()
 {
   // Fill with spaces (left of the title)
-  std::size_t center_offset = 0;
-  std::size_t x = 1;
+  std::size_t center_offset{0};
+  std::size_t x{1};
 
   if ( getMaxColor() < 16 )
     setBold();
@@ -1143,7 +1143,7 @@ void FDialog::restoreOverlaidWindows()
   if ( ! window_list || window_list->empty() )
     return;
 
-  bool overlaid = false;
+  bool overlaid{false};
 
   for (auto&& win : *window_list)
   {
@@ -1166,7 +1166,7 @@ void FDialog::setCursorToFocusWidget()
     && focus->isShown()
     && focus->hasVisibleCursor() )
   {
-    FPoint cursor_pos = focus->getCursorPos();
+    FPoint cursor_pos(focus->getCursorPos());
     focus->setCursorPos(cursor_pos);
     updateVTermCursor(vwin);
   }
@@ -1207,7 +1207,7 @@ void FDialog::openMenu()
   else
   {
     setOpenMenu(dialog_menu);
-    FPoint pos = getPos();
+    FPoint pos(getPos());
     pos.y_ref()++;
     dialog_menu->setPos (pos);
     dialog_menu->setVisible();
@@ -1483,11 +1483,11 @@ void FDialog::resizeMouseDown (const mouseStates& ms)
   if ( isResizeable() && isLowerRightResizeCorner(ms) )
   {
     resize_click_pos = ms.termPos;
-    FPoint lower_right_pos = getTermGeometry().getLowerRightPos();
+    FPoint lower_right_pos(getTermGeometry().getLowerRightPos());
 
     if ( ms.termPos != lower_right_pos )
     {
-      FPoint deltaPos = ms.termPos - lower_right_pos;
+      FPoint deltaPos(ms.termPos - lower_right_pos);
       int w = lower_right_pos.getX() + deltaPos.getX() - getTermX() + 1;
       int h = lower_right_pos.getY() + deltaPos.getY() - getTermY() + 1;
       const FSize& size = FSize(std::size_t(w), std::size_t(h));
@@ -1510,8 +1510,8 @@ void FDialog::resizeMouseUpMove (const mouseStates& ms, bool mouse_up)
     resize_click_pos = ms.termPos;
     int x2 = resize_click_pos.getX()
       , y2 = resize_click_pos.getY()
-      , x2_offset = 0
-      , y2_offset = 0;
+      , x2_offset{0}
+      , y2_offset{0};
 
     if ( r )
     {
@@ -1521,8 +1521,8 @@ void FDialog::resizeMouseUpMove (const mouseStates& ms, bool mouse_up)
 
     if ( ms.termPos != getTermGeometry().getLowerRightPos() )
     {
-      int w, h;
-      FPoint deltaPos = ms.termPos - resize_click_pos;
+      int w{}, h{};
+      FPoint deltaPos(ms.termPos - resize_click_pos);
 
       if ( x2 - x2_offset <= int(getMaxWidth()) )
         w = resize_click_pos.getX() + deltaPos.getX() - getTermX() + 1;
diff --git a/src/ffiledialog.cpp b/src/ffiledialog.cpp
index d57ef93e..4d4e265e 100644
--- a/src/ffiledialog.cpp
+++ b/src/ffiledialog.cpp
@@ -61,20 +61,20 @@ const FString fileChooser ( FWidget* parent
                           , const FString& filter
                           , FFileDialog::DialogType type )
 {
-  FString ret;
-  FString path = dirname;
-  FString file_filter = filter;
+  FString ret{};
+  FString path(dirname);
+  FString file_filter(filter);
 
   if ( path.isNull() || path.isEmpty() )
   {
-    path = FFileDialog::getHomeDir();
+    path.setString(FFileDialog::getHomeDir());
 
     if ( path.isNull() || path.isEmpty() )
-      path = FString("/");
+      path.setString("/");
   }
 
   if ( file_filter.isNull() || file_filter.isEmpty() )
-    file_filter = FString("*");
+    file_filter.setString("*");
 
   FFileDialog fileopen ( path
                        , file_filter
@@ -90,7 +90,7 @@ const FString fileChooser ( FWidget* parent
 }
 
 // static class attributes
-FSystem*  FFileDialog::fsystem = nullptr;
+FSystem*  FFileDialog::fsystem{nullptr};
 
 //----------------------------------------------------------------------
 // class FFileDialog
@@ -179,9 +179,9 @@ const FString FFileDialog::getSelectedFile() const
 void FFileDialog::setPath (const FString& dir)
 {
   const char* const dirname = dir.c_str();
-  char resolved_path[MAXPATHLEN];
-  FString r_dir;
-  struct stat sb;
+  char resolved_path[MAXPATHLEN]{};
+  FString r_dir{};
+  struct stat sb{};
 
   if ( stat(dirname, &sb) != 0 )
   {
@@ -205,9 +205,9 @@ void FFileDialog::setPath (const FString& dir)
   }
 
   if ( fsystem->realpath(dir.c_str(), resolved_path) != 0 )
-    r_dir = resolved_path;
+    r_dir.setString(resolved_path);
   else
-    r_dir = dir;
+    r_dir.setString(dir);
 
   if ( r_dir[r_dir.getLength() - 1] != '/' )
     directory = r_dir + "/";
@@ -280,10 +280,7 @@ const FString FFileDialog::fileSaveChooser ( FWidget* parent
 //----------------------------------------------------------------------
 void FFileDialog::adjustSize()
 {
-  int X, Y;
-  std::size_t max_width;
-  std::size_t max_height;
-  std::size_t h;
+  std::size_t max_width{}, max_height{};
   auto root_widget = getRootWidget();
 
   if ( root_widget )
@@ -298,7 +295,7 @@ void FFileDialog::adjustSize()
     max_height = 24;
   }
 
-  h = max_height - 6;
+  std::size_t h = max_height - 6;
 
   if ( h < 15 )  // minimum
     h = 15;
@@ -307,8 +304,8 @@ void FFileDialog::adjustSize()
     h = 30;
 
   setHeight (h, false);
-  X = 1 + int((max_width - getWidth()) / 2);
-  Y = 1 + int((max_height - getHeight()) / 3);
+  int X = 1 + int((max_width - getWidth()) / 2);
+  int Y = 1 + int((max_height - getHeight()) / 3);
   setPos(FPoint(X, Y), false);
   filebrowser.setHeight (h - 8, false);
   hidden_check.setY (int(h) - 4, false);
@@ -422,7 +419,7 @@ void FFileDialog::initCallbacks()
 inline bool FFileDialog::pattern_match ( const char* const pattern
                                        , char fname[] )
 {
-  char search[128] = { };
+  char search[128]{};
 
   if ( show_hidden && fname[0] == '.' && fname[1] != '\0' )  // hidden files
   {
@@ -475,14 +472,14 @@ long FFileDialog::numOfDirs()
 //----------------------------------------------------------------------
 void FFileDialog::sortDir()
 {
-  long start, dir_num;
+  long start{};
 
   if ( std::strcmp((*dir_entries.begin()).name, "..") == 0 )
     start = 1;
   else
     start = 0;
 
-  dir_num = numOfDirs();
+  long dir_num = numOfDirs();
   // directories first
   std::sort ( dir_entries.begin() + start
             , dir_entries.end()
@@ -565,7 +562,7 @@ int FFileDialog::readDir()
 void FFileDialog::getEntry (const char* const dir, struct dirent* d_entry)
 {
   const char* const filter = filter_pattern.c_str();
-  dir_entry entry;
+  dir_entry entry{};
 
   entry.name = strdup(d_entry->d_name);
 
@@ -578,7 +575,7 @@ void FFileDialog::getEntry (const char* const dir, struct dirent* d_entry)
   entry.symbolic_link    = (d_entry->d_type & DT_LNK ) == DT_LNK;
   entry.socket           = (d_entry->d_type & DT_SOCK) == DT_SOCK;
 #else
-  struct stat s;
+  struct stat s{};
   stat (entry.name, &s);
   entry.fifo             = S_ISFIFO (s.st_mode);
   entry.character_device = S_ISCHR (s.st_mode);
@@ -605,9 +602,9 @@ void FFileDialog::followSymLink (const char* const dir, dir_entry& entry)
   if ( ! entry.symbolic_link )
     return;  // No symbolic link
 
-  char resolved_path[MAXPATHLEN] = { };
-  char symLink[MAXPATHLEN] = { };
-  struct stat sb;
+  char resolved_path[MAXPATHLEN]{};
+  char symLink[MAXPATHLEN]{};
+  struct stat sb{};
 
   if ( ! fsystem )
     fsystem = FTerm::getFSystem();
@@ -654,7 +651,7 @@ void FFileDialog::selectDirectoryEntry (const char* const name)
   if ( dir_entries.empty() )
     return;
 
-  std::size_t i = 1;
+  std::size_t i{1};
 
   for (auto&& entry : dir_entries)
   {
@@ -672,8 +669,8 @@ void FFileDialog::selectDirectoryEntry (const char* const name)
 //----------------------------------------------------------------------
 int FFileDialog::changeDir (const FString& dirname)
 {
-  FString lastdir = directory;
-  FString newdir = dirname;
+  FString lastdir(directory);
+  FString newdir(dirname);
 
   if ( ! fsystem )
     fsystem = FTerm::getFSystem();
@@ -710,7 +707,7 @@ int FFileDialog::changeDir (const FString& dirname)
       }
       else
       {
-        FString firstname = dir_entries[0].name;
+        FString firstname(dir_entries[0].name);
 
         if ( dir_entries[0].directory )
           filename.setText(firstname + '/');
@@ -742,9 +739,9 @@ void FFileDialog::printPath (const FString& txt)
 //----------------------------------------------------------------------
 const FString FFileDialog::getHomeDir()
 {
-  struct passwd pwd;
-  struct passwd* pwd_ptr;
-  char buf[1024];
+  struct passwd pwd{};
+  struct passwd* pwd_ptr{};
+  char buf[1024]{};
 
   if ( ! fsystem )
     fsystem = FTerm::getFSystem();
@@ -781,7 +778,7 @@ void FFileDialog::cb_processActivate (FWidget*, FDataPtr)
   }
   else
   {
-    bool found = false;
+    bool found{false};
     const auto& input = filename.getText().trim();
 
     if ( ! dir_entries.empty() )
@@ -817,9 +814,9 @@ void FFileDialog::cb_processRowChanged (FWidget*, FDataPtr)
   const auto& name = FString(dir_entries[n - 1].name);
 
   if ( dir_entries[n - 1].directory )
-    filename.setText( name + '/' );
+    filename.setText(name + '/');
   else
-    filename.setText( name );
+    filename.setText(name);
 
   filename.redraw();
 }
diff --git a/src/fkeyboard.cpp b/src/fkeyboard.cpp
index ed70a105..41b01f4d 100644
--- a/src/fkeyboard.cpp
+++ b/src/fkeyboard.cpp
@@ -42,11 +42,11 @@ namespace finalcut
 {
 
 // static class attributes
-uInt64 FKeyboard::key_timeout = 100000;  // 100 ms (default timeout for keypress)
+uInt64 FKeyboard::key_timeout{100000};  // 100 ms (default timeout for keypress)
 struct timeval FKeyboard::time_keypressed{};
 
 #if defined(__linux__)
-  FTermLinux* FKeyboard::linux = nullptr;
+  FTermLinux* FKeyboard::linux{nullptr};
 #endif
 
 //----------------------------------------------------------------------
@@ -102,7 +102,7 @@ void FKeyboard::fetchKeyCode()
 //----------------------------------------------------------------------
 const FString FKeyboard::getKeyName (FKey keynum)
 {
-  for (std::size_t i = 0; fc::FkeyName[i].string[0] != 0; i++)
+  for (std::size_t i{0}; fc::FkeyName[i].string[0] != 0; i++)
     if ( fc::FkeyName[i].num && fc::FkeyName[i].num == keynum )
       return FString(fc::FkeyName[i].string);
 
@@ -135,16 +135,15 @@ bool& FKeyboard::unprocessedInput()
 //----------------------------------------------------------------------
 bool FKeyboard::isKeyPressed()
 {
-  int result;
-  fd_set ifds;
-  struct timeval tv;
+  fd_set ifds{};
+  struct timeval tv{};
   int stdin_no = FTermios::getStdIn();
 
   FD_ZERO(&ifds);
   FD_SET(stdin_no, &ifds);
   tv.tv_sec  = 0;
   tv.tv_usec = 100000;  // 100 ms
-  result = select (stdin_no + 1, &ifds, 0, 0, &tv);
+  int result = select (stdin_no + 1, &ifds, 0, 0, &tv);
 
   if ( result > 0 && FD_ISSET(stdin_no, &ifds) )
     FD_CLR (stdin_no, &ifds);
@@ -235,14 +234,14 @@ inline FKey FKeyboard::getTermcapKey()
   if ( ! key_map )
     return NOT_SET;
 
-  for (std::size_t i = 0; key_map[i].tname[0] != 0; i++)
+  for (std::size_t i{0}; key_map[i].tname[0] != 0; i++)
   {
     char* k = key_map[i].string;
     std::size_t len = ( k ) ? std::strlen(k) : 0;
 
     if ( k && std::strncmp(k, fifo_buf, len) == 0 )  // found
     {
-      std::size_t n;
+      std::size_t n{};
 
       for (n = len; n < FIFO_BUF_SIZE; n++)  // Remove founded entry
         fifo_buf[n - len] = fifo_buf[n];
@@ -265,14 +264,14 @@ inline FKey FKeyboard::getMetaKey()
 
   assert ( FIFO_BUF_SIZE > 0 );
 
-  for (std::size_t i = 0; fc::Fmetakey[i].string[0] != 0; i++)
+  for (std::size_t i{0}; fc::Fmetakey[i].string[0] != 0; i++)
   {
     char* kmeta = fc::Fmetakey[i].string;  // The string is never null
     std::size_t len = std::strlen(kmeta);
 
     if ( std::strncmp(kmeta, fifo_buf, len) == 0 )  // found
     {
-      std::size_t n;
+      std::size_t n{};
 
       if ( len == 2 && ( fifo_buf[1] == 'O'
                       || fifo_buf[1] == '['
@@ -301,15 +300,15 @@ inline FKey FKeyboard::getSingleKey()
 {
   // Looking for single key code in the buffer
 
+  std::size_t n{};
+  std::size_t len{1};
   uChar firstchar = uChar(fifo_buf[0]);
-  std::size_t n;
-  std::size_t len = 1;
-  FKey keycode;
+  FKey keycode{};
 
   // Look for a utf-8 character
   if ( utf8_input && (firstchar & 0xc0) == 0xc0 )
   {
-    char utf8char[5] = { };  // Init array with '\0'
+    char utf8char[5]{};  // Init array with '\0'
 
     if ( (firstchar & 0xe0) == 0xc0 )
       len = 2;
@@ -318,7 +317,7 @@ inline FKey FKeyboard::getSingleKey()
     else if ( (firstchar & 0xf8) == 0xf0 )
       len = 4;
 
-    for (std::size_t i = 0; i < len ; i++)
+    for (std::size_t i{0}; i < len ; i++)
       utf8char[i] = char(fifo_buf[i] & 0xff);
 
     keycode = UTF8decode(utf8char);
@@ -373,14 +372,14 @@ bool FKeyboard::isKeypressTimeout()
 //----------------------------------------------------------------------
 FKey FKeyboard::UTF8decode (const char utf8[])
 {
-  FKey ucs = 0;  // Universal coded character
+  FKey ucs{0};  // Universal coded character
   constexpr std::size_t max = 4;
   std::size_t len = std::strlen(utf8);
 
   if ( len > max )
     len = max;
 
-  for (std::size_t i = 0; i < len; ++i)
+  for (std::size_t i{0}; i < len; ++i)
   {
     uChar ch = uChar(utf8[i]);
 
@@ -422,9 +421,8 @@ FKey FKeyboard::UTF8decode (const char utf8[])
 //----------------------------------------------------------------------
 inline ssize_t FKeyboard::readKey()
 {
-  ssize_t bytes;
   setNonBlockingInput();
-  bytes = read(FTermios::getStdIn(), &read_buf, READ_BUF_SIZE - 1);
+  ssize_t bytes = read(FTermios::getStdIn(), &read_buf, READ_BUF_SIZE - 1);
   unsetNonBlockingInput();
   return bytes;
 }
@@ -432,14 +430,14 @@ inline ssize_t FKeyboard::readKey()
 //----------------------------------------------------------------------
 void FKeyboard::parseKeyBuffer()
 {
-  ssize_t bytesread;
+  ssize_t bytesread{};
   FObject::getCurrentTime (&time_keypressed);
 
   while ( (bytesread = readKey()) > 0 )
   {
     if ( bytesread + fifo_offset <= int(FIFO_BUF_SIZE) )
     {
-      for (std::size_t i = 0; i < std::size_t(bytesread); i++)
+      for (std::size_t i{0}; i < std::size_t(bytesread); i++)
       {
         fifo_buf[fifo_offset] = read_buf[i];
         fifo_offset++;
diff --git a/src/flabel.cpp b/src/flabel.cpp
index 9a6d8c42..21b068fc 100644
--- a/src/flabel.cpp
+++ b/src/flabel.cpp
@@ -217,7 +217,7 @@ bool FLabel::setEnable (bool enable)
 //----------------------------------------------------------------------
 void FLabel::setText (const FString& txt)
 {
-  text = txt;
+  text.setString(txt);
   multiline_text = text.split("\r\n");
 
   if ( int(multiline_text.size()) > 1 )
@@ -428,15 +428,15 @@ void FLabel::draw()
 //----------------------------------------------------------------------
 void FLabel::drawMultiLine()
 {
-  std::size_t y = 0;
+  std::size_t y{0};
   std::size_t text_lines = multiline_text.size();
-  bool hotkey_printed = false;
+  bool hotkey_printed{false};
 
   while ( y < text_lines && y < std::size_t(getHeight()) )
   {
     wchar_t* label_text;
-    std::size_t hotkeypos = NOT_SET;
-    std::size_t align_offset;
+    std::size_t hotkeypos{NOT_SET};
+    std::size_t align_offset{};
     std::size_t length = multiline_text[y].getLength();
 
     try
@@ -480,8 +480,7 @@ void FLabel::drawMultiLine()
 void FLabel::drawSingleLine()
 {
   wchar_t* label_text;
-  std::size_t hotkeypos = NOT_SET;
-  std::size_t align_offset;
+  std::size_t hotkeypos{NOT_SET};
   std::size_t length = text.getLength();
 
   try
@@ -500,7 +499,7 @@ void FLabel::drawSingleLine()
     length--;
 
   print() << FPoint(1, 1);
-  align_offset = getAlignOffset(length);
+  std::size_t align_offset = getAlignOffset(length);
   printLine (label_text, length, hotkeypos, align_offset);
   delete[] label_text;
 }
@@ -511,7 +510,7 @@ void FLabel::printLine ( wchar_t line[]
                        , std::size_t hotkeypos
                        , std::size_t align_offset )
 {
-  std::size_t to_char;
+  std::size_t to_char{};
   std::size_t width = std::size_t(getWidth());
 
   if ( align_offset > 0 )
@@ -525,7 +524,7 @@ void FLabel::printLine ( wchar_t line[]
   if ( hasReverseMode() )
     setReverse(true);
 
-  for (std::size_t z = 0; z < to_char; z++)
+  for (std::size_t z{0}; z < to_char; z++)
   {
     if ( ! std::iswprint(wint_t(line[z])) )
     {
diff --git a/src/flineedit.cpp b/src/flineedit.cpp
index ec71ec77..18481023 100644
--- a/src/flineedit.cpp
+++ b/src/flineedit.cpp
@@ -254,12 +254,12 @@ void FLineEdit::setText (const FString& txt)
   if ( txt )
   {
     if ( txt.getLength() > max_length )
-      text = txt.left(max_length);
+      text.setString(txt.left(max_length));
     else
-      text = txt;
+      text.setString(txt);
   }
   else
-    text = "";
+    text.setString("");
 
   keyEnd();
 }
@@ -270,7 +270,7 @@ void FLineEdit::setMaxLength (std::size_t max)
   max_length = max;
 
   if ( text.getLength() > max_length )
-    text = text.left(max_length);
+    text.setString(text.left(max_length));
 
   keyEnd();
 }
@@ -291,7 +291,7 @@ void FLineEdit::setCursorPosition (std::size_t pos)
 //----------------------------------------------------------------------
 void FLineEdit::setLabelText (const FString& ltxt)
 {
-  label_text = ltxt;
+  label_text.setString(ltxt);
   label->setText(label_text);
   adjustLabel();
 }
@@ -400,8 +400,6 @@ void FLineEdit::onKeyPress (FKeyEvent* ev)
 //----------------------------------------------------------------------
 void FLineEdit::onMouseDown (FMouseEvent* ev)
 {
-  int mouse_x, mouse_y;
-
   if ( ev->getButton() != fc::LeftButton )
     return;
 
@@ -419,8 +417,8 @@ void FLineEdit::onMouseDown (FMouseEvent* ev)
       getStatusBar()->drawMessage();
   }
 
-  mouse_x = ev->getX();
-  mouse_y = ev->getY();
+  int mouse_x = ev->getX();
+  int mouse_y = ev->getY();
 
   if ( mouse_x >= 2 && mouse_x <= int(getWidth()) && mouse_y == 1 )
   {
@@ -449,15 +447,12 @@ void FLineEdit::onMouseUp (FMouseEvent*)
 //----------------------------------------------------------------------
 void FLineEdit::onMouseMove (FMouseEvent* ev)
 {
-  std::size_t len;
-  int mouse_x, mouse_y;
-
   if ( ev->getButton() != fc::LeftButton )
     return;
 
-  len = text.getLength();
-  mouse_x = ev->getX();
-  mouse_y = ev->getY();
+  std::size_t len = text.getLength();
+  int mouse_x = ev->getX();
+  int mouse_y = ev->getY();
 
   if ( mouse_x >= 2 && mouse_x <= int(getWidth()) && mouse_y == 1 )
   {
@@ -717,8 +712,6 @@ void FLineEdit::draw()
 //----------------------------------------------------------------------
 void FLineEdit::drawInputField()
 {
-  std::size_t x;
-  FString show_text;
   bool isActiveFocus = flags.active && flags.focus;
   print() << FPoint(1, 1);
 
@@ -741,12 +734,12 @@ void FLineEdit::drawInputField()
   if ( isActiveFocus && getMaxColor() < 16 )
     setBold();
 
-  show_text = text.mid(1 + text_offset, getWidth() - 2);
+  FString show_text(text.mid(1 + text_offset, getWidth() - 2));
 
   if ( show_text )
     print (show_text);
 
-  x = show_text.getLength();
+  std::size_t x = show_text.getLength();
 
   while ( x < getWidth() - 1 )
   {
@@ -888,7 +881,7 @@ inline bool FLineEdit::keyInput (FKey key)
         text.overwrite(c, cursor_pos);
     }
     else
-      text = c;
+      text.setString(c);
 
     cursor_pos++;
 
diff --git a/src/flistbox.cpp b/src/flistbox.cpp
index 93191bdc..da97ea89 100644
--- a/src/flistbox.cpp
+++ b/src/flistbox.cpp
@@ -104,12 +104,10 @@ FListBox::~FListBox()  // destructor
 //----------------------------------------------------------------------
 void FListBox::setCurrentItem (std::size_t index)
 {
-  std::size_t element_count;
-
   if ( index == current )
     return;
 
-  element_count = getCount();
+  std::size_t element_count = getCount();
 
   if ( index > element_count )
     current = element_count;
@@ -211,7 +209,7 @@ bool FListBox::setFocus (bool enable)
 //----------------------------------------------------------------------
 void FListBox::setText (const FString& txt)
 {
-  text = txt;
+  text.setString(txt);
 }
 
 //----------------------------------------------------------------------
@@ -237,13 +235,11 @@ void FListBox::insert (FListBoxItem listItem)
 //----------------------------------------------------------------------
 void FListBox::remove (std::size_t item)
 {
-  std::size_t element_count;
-
   if ( item > getCount() )
     return;
 
   itemlist.erase (itemlist.begin() + int(item) - 1);
-  element_count = getCount();
+  std::size_t element_count = getCount();
   max_line_width = 0;
 
   for (auto&& listbox_item : itemlist)
@@ -318,7 +314,7 @@ void FListBox::clear()
   std::memset (blank, ' ', size);
   blank[size] = '\0';
 
-  for (int y = 0; y < int(getHeight()) - 2; y++)
+  for (int y{0}; y < int(getHeight()) - 2; y++)
   {
     print() << FPoint(2, 2 + y) << blank;
   }
@@ -428,10 +424,6 @@ void FListBox::onKeyPress (FKeyEvent* ev)
 //----------------------------------------------------------------------
 void FListBox::onMouseDown (FMouseEvent* ev)
 {
-  int yoffset_before
-    , mouse_x
-    , mouse_y;
-
   if ( ev->getButton() != fc::LeftButton
     && ev->getButton() != fc::RightButton )
   {
@@ -443,9 +435,9 @@ void FListBox::onMouseDown (FMouseEvent* ev)
 
   getWidgetFocus();
 
-  yoffset_before = yoffset;
-  mouse_x = ev->getX();
-  mouse_y = ev->getY();
+  int yoffset_before = yoffset;
+  int mouse_x = ev->getX();
+  int mouse_y = ev->getY();
 
   if ( mouse_x > 1 && mouse_x < int(getWidth())
     && mouse_y > 1 && mouse_y < int(getHeight()) )
@@ -553,13 +545,11 @@ void FListBox::onMouseMove (FMouseEvent* ev)
 //----------------------------------------------------------------------
 void FListBox::onMouseDoubleClick (FMouseEvent* ev)
 {
-  int mouse_x, mouse_y;
-
   if ( ev->getButton() != fc::LeftButton )
     return;
 
-  mouse_x = ev->getX();
-  mouse_y = ev->getY();
+  int mouse_x = ev->getX();
+  int mouse_y = ev->getY();
 
   if ( mouse_x > 1 && mouse_x < int(getWidth())
     && mouse_y > 1 && mouse_y < int(getHeight()) )
@@ -624,11 +614,9 @@ void FListBox::onTimer (FTimerEvent*)
 void FListBox::onWheel (FWheelEvent* ev)
 {
   std::size_t current_before = current;
-  int wheel
-    , yoffset_before = yoffset
-    , pagesize = 4;
-
-  wheel = ev->getWheel();
+  int yoffset_before = yoffset;
+  int pagesize{4};
+  int wheel = ev->getWheel();
 
   if ( drag_scroll != fc::noScroll )
     stopDragScroll();
@@ -821,7 +809,7 @@ void FListBox::draw()
   {
     setColor();
 
-    for (int y = 2; y < int(getHeight()); y++)
+    for (int y{2}; y < int(getHeight()); y++)
     {
       print() << FPoint(int(getWidth()), y)
               << ' ';  // clear right side of the scrollbar
@@ -883,7 +871,7 @@ void FListBox::drawHeadline()
   if ( text.isNull() || text.isEmpty() )
     return;
 
-  FString txt = " " + text + " ";
+  FString txt(" " + text + " ");
   std::size_t length = txt.getLength();
   print() << FPoint(2, 1);
 
@@ -908,7 +896,7 @@ void FListBox::drawList()
   if ( itemlist.empty() || getHeight() <= 2 || getWidth() <= 4 )
     return;
 
-  std::size_t start = 0;
+  std::size_t start{};
   std::size_t num = uInt(getHeight() - 2);
 
   if ( num > getCount() )
@@ -929,7 +917,7 @@ void FListBox::drawList()
 
   for (std::size_t y = start; y < num && iter != itemlist.end() ; y++)
   {
-    bool serach_mark = false;
+    bool serach_mark{false};
     bool lineHasBrackets = hasBrackets(iter);
 
     // Import data via lazy conversion
@@ -962,14 +950,12 @@ inline void FListBox::drawListLine ( int y
                                    , listBoxItems::iterator iter
                                    , bool serach_mark )
 {
-  std::size_t i, len;
   std::size_t inc_len = inc_search.getLength();
   bool isCurrentLine = bool(y + yoffset + 1 == int(current));
-  FString element;
-  element = getString(iter).mid ( std::size_t(1 + xoffset)
-                                , getWidth() - nf_offset - 4 );
+  FString element (getString(iter).mid ( std::size_t(1 + xoffset)
+                                       , getWidth() - nf_offset - 4 ));
   const wchar_t* const& element_str = element.wc_str();
-  len = element.getLength();
+  std::size_t len = element.getLength();
 
   if ( isMonochron() && isCurrentLine && flags.focus )
     print (fc::BlackRightPointingPointer);  // ►
@@ -980,6 +966,8 @@ inline void FListBox::drawListLine ( int y
     setColor ( wc.current_inc_search_element_fg
              , wc.current_element_focus_bg );
 
+  std::size_t i{};
+
   for (i = 0; i < len; i++)
   {
     if ( serach_mark && i == inc_len && flags.focus  )
@@ -1018,12 +1006,9 @@ inline void FListBox::drawListBracketsLine ( int y
                                            , listBoxItems::iterator iter
                                            , bool serach_mark )
 {
-  FString element;
-  std::size_t len
-            , full_length
-            , inc_len = inc_search.getLength()
-            , i = 0
-            , b = 0;
+  FString element{};
+  std::size_t inc_len = inc_search.getLength()
+            , b{0};
   bool isCurrentLine = bool(y + yoffset + 1 == int(current));
 
   if ( isMonochron() && isCurrentLine && flags.focus )
@@ -1044,7 +1029,9 @@ inline void FListBox::drawListBracketsLine ( int y
                                   , getWidth() - nf_offset - 4 );
 
   const wchar_t* const& element_str = element.wc_str();
-  len = element.getLength();
+  std::size_t full_length = getString(iter).getLength()
+            , len = element.getLength()
+            , i{0};
 
   for (; i < len; i++)
   {
@@ -1059,8 +1046,6 @@ inline void FListBox::drawListBracketsLine ( int y
     print (element_str[i]);
   }
 
-  full_length = getString(iter).getLength();
-
   if ( b + i < getWidth() - nf_offset - 4
     && std::size_t(xoffset) <= full_length + 1 )
   {
@@ -1280,7 +1265,7 @@ void FListBox::multiSelection (std::size_t pos)
 //----------------------------------------------------------------------
 void FListBox::multiSelectionUpTo (std::size_t pos)
 {
-  std::size_t from, to;
+  std::size_t from{}, to{};
 
   if ( ! isMultiSelection() )
     return;
@@ -1654,7 +1639,7 @@ inline bool FListBox::keySpace()
   if ( inc_len > 0 )
   {
     inc_search += L' ';
-    bool inc_found = false;
+    bool inc_found{false};
     auto iter = itemlist.begin();
 
     while ( iter != itemlist.end() )
@@ -1764,7 +1749,7 @@ inline bool FListBox::keyIncSearchInput (FKey key)
     inc_search += wchar_t(key);
 
   std::size_t inc_len = inc_search.getLength();
-  bool inc_found = false;
+  bool inc_found{false};
   auto iter = itemlist.begin();
 
   while ( iter != itemlist.end() )
@@ -1831,8 +1816,8 @@ void FListBox::cb_VBarChange (FWidget*, FDataPtr)
 {
   FScrollbar::sType scrollType;
   std::size_t current_before = current;
-  int distance = 1
-    , pagesize = 4
+  int distance{1}
+    , pagesize{4}
     , yoffset_before = yoffset;
   scrollType = vbar->getScrollType();
 
@@ -1898,8 +1883,8 @@ void FListBox::cb_HBarChange (FWidget*, FDataPtr)
 {
   static constexpr int padding_space = 2;  // 1 leading space + 1 trailing space
   FScrollbar::sType scrollType;
-  int distance = 1
-    , pagesize = 4
+  int distance{1}
+    , pagesize{4}
     , xoffset_before = xoffset;
   scrollType = hbar->getScrollType();
 
diff --git a/src/flistview.cpp b/src/flistview.cpp
index 3886aa78..0b568ac7 100644
--- a/src/flistview.cpp
+++ b/src/flistview.cpp
@@ -57,9 +57,6 @@ uInt64 firstNumberFromString (const FString& str)
 {
   auto last = str.end();
   auto iter = str.begin();
-  std::size_t pos;
-  std::size_t length;
-  uInt64 number;
 
   while ( iter != last )
   {
@@ -92,8 +89,9 @@ uInt64 firstNumberFromString (const FString& str)
   if ( last_pos == last )
     return 0;
 
-  pos = std::size_t(std::distance(str.begin(), first_pos)) + 1;
-  length = std::size_t(std::distance(first_pos, last_pos));
+  uInt64 number;
+  std::size_t pos = std::size_t(std::distance(str.begin(), first_pos)) + 1;
+  std::size_t length = std::size_t(std::distance(first_pos, last_pos));
   const auto& num_str = str.mid(pos, length);
 
   try
@@ -597,7 +595,7 @@ FListView::~FListView()  // destructor
 //----------------------------------------------------------------------
 std::size_t FListView::getCount()
 {
-  int n = 0;
+  int n{0};
   auto iter = itemlist.begin();
 
   while ( iter != itemlist.end() )
@@ -640,7 +638,7 @@ FString FListView::getColumnText (int column) const
 fc::sorting_type FListView::getColumnSortType (int column) const
 {
   fc::sorting_type type;
-  std::size_t col = uInt(column);
+  std::size_t col = std::size_t(column);
 
   try
   {
@@ -683,7 +681,7 @@ void FListView::setColumnAlignment (int column, fc::text_alignment align)
     return;
 
   // Convert column position to address offset (index)
-  std::size_t index = uInt(column - 1);
+  std::size_t index = std::size_t(column - 1);
   header[index].alignment = align;
 }
 
@@ -696,7 +694,7 @@ void FListView::setColumnText (int column, const FString& label)
     return;
 
   // Convert column position to address offset (index)
-  std::size_t index = uInt(column - 1);
+  std::size_t index = std::size_t(column - 1);
 
   if ( ! header[index].fixed_width )
   {
@@ -717,7 +715,7 @@ void FListView::setColumnSortType (int column, fc::sorting_type type)
   if ( column < 1 || header.empty() || column > int(header.size()) )
     return;
 
-  std::size_t size = uInt(column + 1);
+  std::size_t size = std::size_t(column + 1);
 
   if ( sort_type.empty() || sort_type.size() < size )
     sort_type.resize(size);
@@ -1068,7 +1066,7 @@ void FListView::onMouseUp (FMouseEvent* ev)
         if ( itemlist.empty() )
           return;
 
-        int indent = 0;
+        int indent{0};
         auto item = getCurrentItem();
 
         if ( tree_view )
@@ -1161,13 +1159,11 @@ void FListView::onMouseMove (FMouseEvent* ev)
 //----------------------------------------------------------------------
 void FListView::onMouseDoubleClick (FMouseEvent* ev)
 {
-  int mouse_x, mouse_y;
-
   if ( ev->getButton() != fc::LeftButton )
     return;
 
-  mouse_x = ev->getX();
-  mouse_y = ev->getY();
+  int mouse_x = ev->getX();
+  int mouse_y = ev->getY();
 
   if ( mouse_x > 1 && mouse_x < int(getWidth())
     && mouse_y > 1 && mouse_y < int(getHeight()) )
@@ -1243,7 +1239,7 @@ void FListView::onWheel (FWheelEvent* ev)
 {
   int position_before = current_iter.getPosition()
     , first_line_position_before = first_visible_line.getPosition()
-    , pagesize = 4;
+    , pagesize{4};
 
   if ( drag_scroll != fc::noScroll )
     stopDragScroll();
@@ -1481,7 +1477,7 @@ void FListView::draw()
   {
     setColor();
 
-    for (int y = 2; y < int(getHeight()); y++)
+    for (int y{2}; y < int(getHeight()); y++)
     {
       print() << FPoint(int(getWidth()), y)
               << ' ';  // clear right side of the scrollbar
@@ -1592,7 +1588,7 @@ void FListView::drawList()
   if ( itemlist.empty() || getHeight() <= 2 || getWidth() <= 4 )
     return;
 
-  uInt y = 0;
+  uInt y{0};
   uInt page_height = uInt(getHeight() - 2);
   auto iter = first_visible_line;
 
@@ -1644,12 +1640,12 @@ void FListView::drawListLine ( const FListViewItem* item
 
   // Print the entry
   std::size_t indent = item->getDepth() << 1;  // indent = 2 * depth
-  FString line = getLinePrefix (item, indent);
+  FString line(getLinePrefix (item, indent));
 
   // Print columns
   if ( ! item->column_list.empty() )
   {
-    for (std::size_t col = 0; col < item->column_list.size(); )
+    for (std::size_t col{0}; col < item->column_list.size(); )
     {
       static constexpr std::size_t ellipsis_length = 2;
       const auto& text = item->column_list[col];
@@ -1751,7 +1747,7 @@ inline void FListView::setLineAttributes ( bool is_current
 //----------------------------------------------------------------------
 inline FString FListView::getCheckBox (const FListViewItem* item)
 {
-  FString checkbox;
+  FString checkbox{};
 
   if ( isNewFont() )
   {
@@ -1760,7 +1756,7 @@ inline FString FListView::getCheckBox (const FListViewItem* item)
   }
   else
   {
-    checkbox = L"[ ] ";
+    checkbox.setString("[ ] ");
 
     if ( item->isChecked() )
       checkbox[1] = fc::Times;  // Times ×
@@ -1773,7 +1769,7 @@ inline FString FListView::getCheckBox (const FListViewItem* item)
 inline FString FListView::getLinePrefix ( const FListViewItem* item
                                         , std::size_t indent )
 {
-  FString line;
+  FString line{};
 
   if ( tree_view )
   {
@@ -1797,7 +1793,7 @@ inline FString FListView::getLinePrefix ( const FListViewItem* item
       line += L"  ";
   }
   else
-    line = L" ";
+    line.setString(" ");
 
   if ( item->isCheckable() )
     line += getCheckBox(item);
@@ -1841,7 +1837,7 @@ void FListView::drawHeadlineLabel (const headerItems::const_iterator& iter)
   // Print lable text
   static constexpr std::size_t leading_space = 1;
   const auto& text = iter->name;
-  FString txt = " " + text;
+  FString txt(" " + text);
   std::size_t width = std::size_t(iter->width);
   std::size_t txt_length = txt.getLength();
   std::size_t column_width = leading_space + width;
@@ -1924,7 +1920,7 @@ std::size_t FListView::determineLineWidth (FListViewItem* item)
 {
   static constexpr std::size_t padding_space = 1;
   std::size_t line_width = padding_space;  // leading space
-  uInt column_idx = 0;
+  uInt column_idx{0};
   uInt entries = uInt(item->column_list.size());
   headerItems::iterator header_iter = header.begin();
 
@@ -2029,7 +2025,7 @@ void FListView::recalculateVerticalBar (std::size_t element_count)
 //----------------------------------------------------------------------
 void FListView::mouseHeaderClicked()
 {
-  int column = 1;
+  int column{1};
   int checkbox_offset = ( hasCheckableItems() ) ? 4 : 0;
   int header_start = 2 + checkbox_offset;
   int header_pos = clicked_header_pos.getX() + xoffset;
@@ -2573,8 +2569,8 @@ void FListView::scrollBy (int dx, int dy)
 void FListView::cb_VBarChange (FWidget*, FDataPtr)
 {
   FScrollbar::sType scrollType = vbar->getScrollType();
-  int distance = 1
-    , pagesize = 4
+  int distance{1}
+    , pagesize{4}
     , first_line_position_before = first_visible_line.getPosition();
 
   switch ( scrollType )
@@ -2632,8 +2628,8 @@ void FListView::cb_VBarChange (FWidget*, FDataPtr)
 void FListView::cb_HBarChange (FWidget*, FDataPtr)
 {
   FScrollbar::sType scrollType = hbar->getScrollType();
-  int distance = 1
-    , pagesize = 4
+  int distance{1}
+    , pagesize{4}
     , xoffset_before = xoffset;
 
   switch ( scrollType )
diff --git a/src/fmenu.cpp b/src/fmenu.cpp
index e1e088ea..3d153275 100644
--- a/src/fmenu.cpp
+++ b/src/fmenu.cpp
@@ -469,7 +469,6 @@ void FMenu::init(FWidget* parent)
 //----------------------------------------------------------------------
 void FMenu::calculateDimensions()
 {
-  int item_X, item_Y, adjust_X;
   auto iter = item_list.begin();
   auto last = item_list.end();
   max_item_width = 10;  // minimum width
@@ -500,7 +499,7 @@ void FMenu::calculateDimensions()
     ++iter;
   }
 
-  adjust_X = adjustX(getX());
+  int adjust_X = adjustX(getX());
 
   // set widget geometry
   setGeometry ( FPoint(adjust_X, getY())
@@ -508,8 +507,8 @@ void FMenu::calculateDimensions()
 
   // set geometry of all items
   iter = item_list.begin();
-  item_X = 1;
-  item_Y = 1;
+  int item_X = 1;
+  int item_Y = 1;
 
   while ( iter != last )
   {
@@ -538,12 +537,10 @@ void FMenu::adjustItems()
   {
     if ( (*iter)->hasMenu() )
     {
-      int menu_X, menu_Y;
       auto menu = (*iter)->getMenu();
-
-      menu_X = getTermX() + int(max_item_width) + 1;
+      int menu_X = getTermX() + int(max_item_width) + 1;
       menu_X = menu->adjustX(menu_X);
-      menu_Y = (*iter)->getTermY() - 2;
+      int menu_Y = (*iter)->getTermY() - 2;
 
       // set sub-menu position
       menu->setPos (FPoint(menu_X, menu_Y));
@@ -661,7 +658,7 @@ void FMenu::hideSuperMenus()
 //----------------------------------------------------------------------
 bool FMenu::mouseDownOverList (FPoint mouse_pos)
 {
-  bool focus_changed = false;
+  bool focus_changed{false};
   auto iter = item_list.begin();
   auto last = item_list.end();
   mouse_pos -= FPoint(getRightPadding(), getTopPadding());
@@ -1038,7 +1035,7 @@ bool FMenu::selectNextItem()
   {
     if ( (*iter)->isSelected() )
     {
-      FMenuItem* next;
+      FMenuItem* next{};
       auto next_element = iter;
 
       do
@@ -1144,7 +1141,7 @@ bool FMenu::hotkeyMenu (FKeyEvent* ev)
   {
     if ( (*iter)->hasHotkey() )
     {
-      bool found = false;
+      bool found{false};
       uChar hotkey = (*iter)->getHotkey();
       FKey key = ev->key();
 
@@ -1261,8 +1258,8 @@ inline void FMenu::drawSeparator (int y)
 //----------------------------------------------------------------------
 inline void FMenu::drawMenuLine (FMenuItem* menuitem, int y)
 {
-  FString txt = menuitem->getText();
-  menuText txtdata;
+  FString txt(menuitem->getText());
+  menuText txtdata{};
   std::size_t txt_length = txt.getLength();
   std::size_t to_char = txt_length;
   FKey accel_key   = menuitem->accel_key;
@@ -1369,7 +1366,7 @@ inline void FMenu::drawMenuText (menuText& data)
 {
   // Print menu text
 
-  for (std::size_t z = 0; z < data.length; z++)
+  for (std::size_t z{0}; z < data.length; z++)
   {
     if ( ! std::iswprint(wint_t(data.text[z])) )
     {
diff --git a/src/fmenubar.cpp b/src/fmenubar.cpp
index 9f32a86b..ad8e83e2 100644
--- a/src/fmenubar.cpp
+++ b/src/fmenubar.cpp
@@ -487,7 +487,7 @@ void FMenuBar::drawItems()
   screenWidth = getDesktopWidth();
   auto iter = item_list.begin();
   auto last = item_list.end();
-  std::size_t x = 1;
+  std::size_t x{1};
 
   while ( iter != last )
   {
@@ -506,16 +506,14 @@ void FMenuBar::drawItems()
 //----------------------------------------------------------------------
 inline void FMenuBar::drawItem (FMenuItem* menuitem, std::size_t& x)
 {
-  FString txt = menuitem->getText();
-  menuText txtdata;
-  std::size_t txt_length = txt.getLength();
-  std::size_t to_char;
-  std::size_t hotkeypos;
-  bool is_enabled  = menuitem->isEnabled();
-  bool is_selected = menuitem->isSelected();
-
+  menuText txtdata{};
   txtdata.startpos = x + 1;
   txtdata.no_underline = menuitem->getFlags().no_underline;
+  FString txt(menuitem->getText());
+  std::size_t to_char{};
+  std::size_t txt_length = txt.getLength();
+  bool is_enabled  = menuitem->isEnabled();
+  bool is_selected = menuitem->isSelected();
 
   // Set screen attributes
   setLineAttributes (menuitem);
@@ -536,7 +534,9 @@ inline void FMenuBar::drawItem (FMenuItem* menuitem, std::size_t& x)
   else
     to_char = txt_length - screenWidth - x - 1;
 
-  hotkeypos = finalcut::getHotkeyPos (txt.wc_str(), txtdata.text, txt_length);
+  std::size_t hotkeypos = finalcut::getHotkeyPos ( txt.wc_str()
+                                                 , txtdata.text
+                                                 , txt_length );
 
   if ( hotkeypos != NOT_SET )
   {
@@ -600,7 +600,7 @@ inline void FMenuBar::drawMenuText (menuText& data)
 {
   // Print menu text
 
-  for (std::size_t z = 0; z < data.length; z++)
+  for (std::size_t z{0}; z < data.length; z++)
   {
     if ( data.startpos > screenWidth - z )
       break;
@@ -893,7 +893,7 @@ void FMenuBar::mouseMoveOverList (const FMouseEvent* ev)
     return;
 
   focus_changed = false;
-  bool mouse_over_menubar = false;
+  bool mouse_over_menubar{false};
   auto iter = item_list.begin();
   auto last = item_list.end();
   int mouse_x = ev->getX();
diff --git a/src/fmenuitem.cpp b/src/fmenuitem.cpp
index 098632ee..c4fa5d5d 100644
--- a/src/fmenuitem.cpp
+++ b/src/fmenuitem.cpp
@@ -188,7 +188,7 @@ void FMenuItem::unsetSelected()
 //----------------------------------------------------------------------
 void FMenuItem::setText (const FString& txt)
 {
-  text = txt;
+  text.setString(txt);
   text_length = text.getLength();
   hotkey = hotKey();
 
@@ -502,7 +502,7 @@ bool FMenuItem::isMenu (FWidget* w) const
 //----------------------------------------------------------------------
 FMenuList* FMenuItem::getFMenuList (FWidget& widget)
 {
-  FMenuList* menu_list;
+  FMenuList* menu_list{};
 
   if ( isMenu(&widget) )
   {
@@ -569,14 +569,12 @@ void FMenuItem::init (FWidget* parent)
 //----------------------------------------------------------------------
 uChar FMenuItem::hotKey()
 {
-  std::size_t length;
-
   if ( text.isEmpty() )
     return 0;
 
-  length = text.getLength();
+  std::size_t length = text.getLength();
 
-  for (std::size_t i = 0; i < length; i++)
+  for (std::size_t i{0}; i < length; i++)
   {
     try
     {
@@ -632,7 +630,7 @@ void FMenuItem::createDialogList (FMenu* winmenu)
 
       if ( win )
       {
-        FMenuItem* win_item;
+        FMenuItem* win_item{};
         uInt32 n = uInt32(std::distance(first, iter));
         // get the dialog title
         const auto& name = win->getText();
diff --git a/src/fmessagebox.cpp b/src/fmessagebox.cpp
index c4e80031..226ac38a 100644
--- a/src/fmessagebox.cpp
+++ b/src/fmessagebox.cpp
@@ -105,7 +105,7 @@ FMessageBox& FMessageBox::operator = (const FMessageBox& mbox)
   }
   else
   {
-    for (uInt n = 0; n < num_buttons; n++)
+    for (uInt n{0}; n < num_buttons; n++)
       delete button[n];
 
     if ( mbox.getParentWidget() )
@@ -133,10 +133,10 @@ FMessageBox& FMessageBox::operator = (const FMessageBox& mbox)
 //----------------------------------------------------------------------
 void FMessageBox::setHeadline (const FString& headline)
 {
-  headline_text = headline;
+  headline_text.setString(headline);
   setHeight(getHeight() + 2, true);
 
-  for (uInt n = 0; n < num_buttons; n++)
+  for (uInt n{0}; n < num_buttons; n++)
     button[n]->setY (int(getHeight()) - 4, false);
 
   std::size_t len = headline_text.getLength();
@@ -148,7 +148,7 @@ void FMessageBox::setHeadline (const FString& headline)
 //----------------------------------------------------------------------
 void FMessageBox::setText (const FString& txt)
 {
-  text = txt;
+  text.setString(txt);
   calculateDimensions();
   button[0]->setY (int(getHeight()) - 4, false);
 
@@ -166,8 +166,8 @@ void FMessageBox::setText (const FString& txt)
 //----------------------------------------------------------------------
 void FMessageBox::adjustSize()
 {
-  std::size_t max_width;
-  std::size_t max_height;
+  std::size_t max_width{};
+  std::size_t max_height{};
   auto root_widget = getRootWidget();
 
   if ( root_widget )
@@ -268,7 +268,7 @@ inline void FMessageBox::allocation (int button0, int button1, int button2)
 //----------------------------------------------------------------------
 inline void FMessageBox::deallocation()
 {
-  for (uInt n = 0; n < num_buttons; n++)
+  for (uInt n{0}; n < num_buttons; n++)
     delete button[n];
 }
 
@@ -309,7 +309,7 @@ inline void FMessageBox::initCallbacks()
 //----------------------------------------------------------------------
 void FMessageBox::calculateDimensions()
 {
-  FSize size;
+  FSize size{};
   std::size_t headline_height{0};
   text_split = text.split("\n");
   max_line_width = 0;
@@ -321,7 +321,7 @@ void FMessageBox::calculateDimensions()
   if ( ! headline_text.isNull() )
     headline_height = 2;
 
-  for (uInt i = 0; i < text_num_lines; i++)
+  for (uInt i{0}; i < text_num_lines; i++)
   {
     text_components = &text_split[0];
     std::size_t len = text_components[i].getLength();
@@ -366,7 +366,7 @@ void FMessageBox::draw()
 
   setColor();
 
-  for (int i = 0; i < int(text_num_lines); i++)
+  for (int i{0}; i < int(text_num_lines); i++)
   {
     std::size_t line_length = text_components[i].getLength();
 
@@ -384,9 +384,9 @@ void FMessageBox::draw()
 //----------------------------------------------------------------------
 void FMessageBox::resizeButtons()
 {
-  std::size_t len[3], max_size;
+  std::size_t len[3]{}, max_size{};
 
-  for (std::size_t n = 0; n < num_buttons; n++)
+  for (std::size_t n{0}; n < num_buttons; n++)
   {
     len[n] = button[n]->getText().getLength();
 
@@ -408,7 +408,7 @@ void FMessageBox::resizeButtons()
   if ( max_size < 7 )
     max_size = 7;
 
-  for (std::size_t n = 0; n < num_buttons; n++)
+  for (std::size_t n{0}; n < num_buttons; n++)
     button[n]->setWidth(max_size + 3, false);
 }
 
@@ -416,9 +416,9 @@ void FMessageBox::resizeButtons()
 void FMessageBox::adjustButtons()
 {
   static constexpr std::size_t gap = 4;
-  std::size_t btn_width = 0;
+  std::size_t btn_width{0};
 
-  for (std::size_t n = 0; n < num_buttons; n++)
+  for (std::size_t n{0}; n < num_buttons; n++)
   {
     if ( n == num_buttons - 1 )
       btn_width += button[n]->getWidth();
@@ -437,7 +437,7 @@ void FMessageBox::adjustButtons()
 
   int btn_x = int((getWidth() - btn_width) / 2);
 
-  for (std::size_t n = 0; n < num_buttons; n++)
+  for (std::size_t n{0}; n < num_buttons; n++)
   {
     if ( n == 0 )
       button[n]->setX(btn_x);
diff --git a/src/fmouse.cpp b/src/fmouse.cpp
index cccbe861..3e9edff2 100644
--- a/src/fmouse.cpp
+++ b/src/fmouse.cpp
@@ -449,17 +449,16 @@ void FMouseGPM::drawGpmPointer()
 //----------------------------------------------------------------------
 int FMouseGPM::gpmEvent (bool clear)
 {
-  int result;
   int max = ( gpm_fd > stdin_no ) ? gpm_fd : stdin_no;
-  fd_set ifds;
-  struct timeval tv;
+  fd_set ifds{};
+  struct timeval tv{};
 
   FD_ZERO(&ifds);
   FD_SET(stdin_no, &ifds);
   FD_SET(gpm_fd, &ifds);
   tv.tv_sec  = 0;
   tv.tv_usec = 100000;  // 100 ms
-  result = select (max + 1, &ifds, 0, 0, &tv);
+  int result = select (max + 1, &ifds, 0, 0, &tv);
 
   if ( result > 0 && FD_ISSET(stdin_no, &ifds) )
   {
@@ -503,8 +502,8 @@ void FMouseX11::setRawData (FKeyboard::keybuffer& fifo_buf)
   // Import the X11 xterm mouse protocol (SGR-Mode) raw mouse data
 
   static constexpr std::size_t len = 6;
-  std::size_t fifo_buf_size = sizeof(fifo_buf);
-  std::size_t n;
+  std::size_t fifo_buf_size{sizeof(fifo_buf)};
+  std::size_t n{};
   x11_mouse[0] = fifo_buf[3];
   x11_mouse[1] = fifo_buf[4];
   x11_mouse[2] = fifo_buf[5];
@@ -529,12 +528,9 @@ void FMouseX11::processEvent (struct timeval* time)
   // Parse and interpret the X11 xterm mouse string
 
   const auto& mouse_position = getPos();
-  uChar x, y;
-  int btn;
-
-  x = uChar(x11_mouse[1] - 0x20);
-  y = uChar(x11_mouse[2] - 0x20);
-  btn = x11_mouse[0];
+  uChar x = uChar(x11_mouse[1] - 0x20);
+  uChar y = uChar(x11_mouse[2] - 0x20);
+  int btn = x11_mouse[0];
   new_mouse_position.setPoint (x, y);
   // Fill bit field with 0
   std::memset(&b_state, 0x00, sizeof(b_state));
@@ -691,7 +687,7 @@ void FMouseSGR::setRawData (FKeyboard::keybuffer& fifo_buf)
 
   std::size_t fifo_buf_size = sizeof(fifo_buf);
   std::size_t len = std::strlen(fifo_buf);
-  std::size_t n = 3;
+  std::size_t n{3};
 
   while ( n < len && n <= MOUSE_BUF_SIZE + 1 )
   {
@@ -719,16 +715,12 @@ void FMouseSGR::setRawData (FKeyboard::keybuffer& fifo_buf)
 void FMouseSGR::processEvent (struct timeval* time)
 {
   const auto& mouse_position = getPos();
-  char* p;
-  int btn;
-  uInt16 x, y;
-
-  x = 0;
-  y = 0;
-  btn = 0;
+  uInt16 x{0};
+  uInt16 y{0};
+  int btn{0};
 
   // parse the SGR mouse string
-  p = sgr_mouse;
+  char* p = sgr_mouse;
 
   while ( *p && *p != ';' )
   {
@@ -930,7 +922,7 @@ void FMouseUrxvt::setRawData (FKeyboard::keybuffer& fifo_buf)
 
   std::size_t fifo_buf_size = sizeof(fifo_buf);
   std::size_t len = std::strlen(fifo_buf);
-  std::size_t n = 2;
+  std::size_t n{2};
 
   while ( n < len && n <= MOUSE_BUF_SIZE )
   {
@@ -960,20 +952,14 @@ void FMouseUrxvt::processEvent (struct timeval* time)
   // Parse and interpret the X11 xterm mouse string (Urxvt-Mode)
 
   const auto& mouse_position = getPos();
-  char* p;
-  bool x_neg;
-  bool y_neg;
-  int btn;
-  uInt16 x, y;
-
-  x = 0;
-  y = 0;
-  btn = 0;
+  uInt16 x{0};
+  uInt16 y{0};
+  int btn{0};
 
   // Parse the Urxvt mouse string
-  p = urxvt_mouse;
-  x_neg = false;
-  y_neg = false;
+  char* p = urxvt_mouse;
+  bool x_neg{false};
+  bool y_neg{false};
 
   while ( *p && *p != ';' )
   {
diff --git a/src/fobject.cpp b/src/fobject.cpp
index 205a5020..2892689f 100644
--- a/src/fobject.cpp
+++ b/src/fobject.cpp
@@ -32,8 +32,8 @@ namespace finalcut
 
 // static class attributes
 bool FObject::timer_modify_lock;
-FObject::TimerList* FObject::timer_list = nullptr;
-const FString* fc::emptyFString::empty_string = nullptr;
+FObject::TimerList* FObject::timer_list{nullptr};
+const FString* fc::emptyFString::empty_string{nullptr};
 
 
 //----------------------------------------------------------------------
@@ -120,7 +120,7 @@ bool FObject::isChild (const FObject* obj) const
 {
   // Find out if obj is a child object of mine
 
-  FObject* p_obj = nullptr;
+  FObject* p_obj{nullptr};
 
   while ( obj && (p_obj = obj->getParent()) )
   {
@@ -228,9 +228,8 @@ bool FObject::isTimeout (timeval* time, uInt64 timeout)
 {
   // Checks whether the specified time span (timeout in µs) has elapse
 
-  uInt64 diff_usec;
-  struct timeval now;
-  struct timeval diff;
+  struct timeval now{};
+  struct timeval diff{};
 
   FObject::getCurrentTime(&now);
   diff.tv_sec = now.tv_sec - time->tv_sec;
@@ -242,7 +241,7 @@ bool FObject::isTimeout (timeval* time, uInt64 timeout)
     diff.tv_usec += 1000000;
   }
 
-  diff_usec = uInt64((diff.tv_sec * 1000000) + diff.tv_usec);
+  uInt64 diff_usec = uInt64((diff.tv_sec * 1000000) + diff.tv_usec);
   return ( diff_usec > timeout );
 }
 
@@ -252,9 +251,9 @@ int FObject::addTimer (int interval)
   // Create a timer and returns the timer identifier number
   // (interval in ms)
 
-  timeval time_interval;
-  timeval currentTime;
-  int id = 1;
+  timeval time_interval{};
+  timeval currentTime{};
+  int id{1};
   timer_modify_lock = true;
 
   // find an unused timer id
@@ -282,7 +281,7 @@ int FObject::addTimer (int interval)
   time_interval.tv_usec = (interval % 1000) * 1000;
   getCurrentTime (&currentTime);
   timeval timeout = currentTime + time_interval;
-  timer_data t = { id, time_interval, timeout, this };
+  timer_data t{ id, time_interval, timeout, this };
 
   // insert in list sorted by timeout
   auto iter = timer_list->begin();
@@ -380,8 +379,8 @@ void FObject::onUserEvent (FUserEvent*)
 //----------------------------------------------------------------------
 uInt FObject::processTimerEvent()
 {
-  timeval currentTime;
-  uInt activated = 0;
+  timeval currentTime{};
+  uInt activated{0};
 
   getCurrentTime (&currentTime);
 
diff --git a/src/foptiattr.cpp b/src/foptiattr.cpp
index 84329b4a..cf2156eb 100644
--- a/src/foptiattr.cpp
+++ b/src/foptiattr.cpp
@@ -1253,7 +1253,7 @@ inline void FOptiAttr::prevent_no_color_video_attributes ( charData*& attr
     || attr_without_color <= 0 )
     return;
 
-  for (int bit = 1; bit < no_mode; bit <<= 1)
+  for (int bit{1}; bit < no_mode; bit <<= 1)
   {
     switch ( bit & attr_without_color )
     {
@@ -1331,7 +1331,7 @@ inline void FOptiAttr::deactivateAttributes ( charData*& term
 inline void FOptiAttr::changeAttributeSGR ( charData*& term
                                           , charData*& next )
 {
-  bool pc_charset_usable = true;
+  bool pc_charset_usable{true};
 
   if ( ! (term && next) )
     return;
@@ -1393,8 +1393,6 @@ inline void FOptiAttr::changeAttributeSeparately ( charData*& term
 //----------------------------------------------------------------------
 void FOptiAttr::change_color (charData*& term, charData*& next)
 {
-  FColor fg, bg;
-
   if ( ! (term && next) )
     return;
 
@@ -1411,8 +1409,8 @@ void FOptiAttr::change_color (charData*& term, charData*& next)
   if ( next->bg_color != fc::Default )
     next->bg_color %= max_color;
 
-  fg = next->fg_color;
-  bg = next->bg_color;
+  FColor fg = next->fg_color;
+  FColor bg = next->bg_color;
 
   if ( fg == fc::Default || bg == fc::Default )
     change_to_default_color (term, next, fg, bg);
@@ -1449,7 +1447,7 @@ inline void FOptiAttr::change_to_default_color ( charData*& term
     }
     else if ( fg == fc::Default && term->fg_color != fc::Default )
     {
-      char sgr_39[] = CSI "39m";
+      char sgr_39[]{ CSI "39m" };
       append_sequence (sgr_39);
       term->fg_color = fc::Default;
     }
@@ -1479,7 +1477,7 @@ inline void FOptiAttr::change_to_default_color ( charData*& term
 inline void FOptiAttr::change_current_color ( charData*& term
                                             , FColor fg, FColor bg )
 {
-  char* color_str;
+  char* color_str{};
   auto& AF = F_set_a_foreground.cap;
   auto& AB = F_set_a_background.cap;
   auto& Sf = F_set_foreground.cap;
diff --git a/src/foptimove.cpp b/src/foptimove.cpp
index e9983aa6..797a84de 100644
--- a/src/foptimove.cpp
+++ b/src/foptimove.cpp
@@ -485,8 +485,8 @@ void FOptiMove::check_boundaries ( int& xold, int& yold
 //----------------------------------------------------------------------
 char* FOptiMove::moveCursor (int xold, int yold, int xnew, int ynew)
 {
-  int method = 0;
-  int move_time = LONG_DURATION;
+  int method{0};
+  int move_time{LONG_DURATION};
 
   check_boundaries (xold, yold, xnew, ynew);
 
@@ -558,10 +558,9 @@ int FOptiMove::capDuration (char cap[], int affcnt)
   if ( ! cap )
     return LONG_DURATION;
 
-  const char* p;
-  float ms = 0;
+  float ms{0};
 
-  for (p = cap; *p; p++)
+  for (const char* p = cap; *p; p++)
   {
     // check for delay with padding character
     if ( p[0] == '$' && p[1] == '<' && std::strchr(p, '>') )
@@ -601,13 +600,9 @@ int FOptiMove::repeatedAppend ( const capability& o
                               , volatile int count
                               , char* dst )
 {
-  std::size_t src_len;
-  std::size_t dst_len;
-  int total;
-
-  src_len = std::strlen(o.cap);
-  dst_len = ( dst != 0 ) ? std::strlen(dst) : 0;
-  total = 0;
+  std::size_t src_len = std::strlen(o.cap);
+  std::size_t dst_len = ( dst != 0 ) ? std::strlen(dst) : 0;
+  int total{0};
 
   if ( (dst_len + uInt(count) * src_len) < BUF_SIZE - 1 )
   {
@@ -637,8 +632,8 @@ int FOptiMove::relativeMove ( char move[]
                             , int from_x, int from_y
                             , int to_x, int to_y )
 {
-  int vtime = 0;
-  int htime = 0;
+  int vtime{0};
+  int htime{0};
 
   if ( move )
     move[0] = '\0';
@@ -653,7 +648,7 @@ int FOptiMove::relativeMove ( char move[]
 
   if ( to_x != from_x )  // horizontal move
   {
-    char hmove[BUF_SIZE] = { };
+    char hmove[BUF_SIZE]{};
     htime = horizontalMove (hmove, from_x, to_x);
 
     if ( htime >= LONG_DURATION )
@@ -676,7 +671,7 @@ int FOptiMove::relativeMove ( char move[]
 //----------------------------------------------------------------------
 inline int FOptiMove::verticalMove (char move[], int from_y, int to_y)
 {
-  int vtime = LONG_DURATION;
+  int vtime{LONG_DURATION};
 
   if ( F_row_address.cap )
   {
@@ -758,7 +753,7 @@ inline void FOptiMove::upMove ( char move[], int& vtime
 //----------------------------------------------------------------------
 inline int FOptiMove::horizontalMove (char hmove[], int from_x, int to_x)
 {
-  int htime = LONG_DURATION;
+  int htime{LONG_DURATION};
 
   if ( F_column_address.cap )
   {
@@ -795,8 +790,8 @@ inline void FOptiMove::rightMove ( char hmove[], int& htime
 
   if ( F_cursor_right.cap )
   {
-    char str[BUF_SIZE] = { };
-    int htime_r = 0;
+    char str[BUF_SIZE]{};
+    int htime_r{0};
     str[0] = '\0';
 
     // try to use tab
@@ -850,8 +845,8 @@ inline void FOptiMove::leftMove ( char hmove[], int& htime
 
   if ( F_cursor_left.cap )
   {
-    char str[BUF_SIZE] = { };
-    int htime_l = 0;
+    char str[BUF_SIZE]{};
+    int htime_l{0};
     str[0] = '\0';
 
     // try to use backward tab
diff --git a/src/fprogressbar.cpp b/src/fprogressbar.cpp
index 3be23971..e0c7289e 100644
--- a/src/fprogressbar.cpp
+++ b/src/fprogressbar.cpp
@@ -164,7 +164,7 @@ void FProgressbar::drawProgressLabel()
 //----------------------------------------------------------------------
 void FProgressbar::drawProgressBar()
 {
-  std::size_t len = 0;
+  std::size_t len{0};
   print() << FPoint(1, 1);
 
   if ( percentage > 0 && percentage <= 100 )
diff --git a/src/frect.cpp b/src/frect.cpp
index dd33c125..1e6ad413 100644
--- a/src/frect.cpp
+++ b/src/frect.cpp
@@ -290,7 +290,7 @@ bool FRect::overlap (const FRect &r) const
 FRect FRect::intersect (const FRect& r) const
 {
   // intersection: this ∩ r
-  FRect new_rect;
+  FRect new_rect{};
   new_rect.X1 = std::max(X1, r.X1);
   new_rect.Y1 = std::max(Y1, r.Y1);
   new_rect.X2 = std::min(X2, r.X2);
@@ -302,7 +302,7 @@ FRect FRect::intersect (const FRect& r) const
 FRect FRect::combined (const FRect& r) const
 {
   // Union: this ∪ r
-  FRect new_rect;
+  FRect new_rect{};
   new_rect.X1 = std::min(X1, r.X1);
   new_rect.Y1 = std::min(Y1, r.Y1);
   new_rect.X2 = std::max(X2, r.X2);
diff --git a/src/fscrollbar.cpp b/src/fscrollbar.cpp
index d74cc744..3faa1f6e 100644
--- a/src/fscrollbar.cpp
+++ b/src/fscrollbar.cpp
@@ -129,7 +129,7 @@ void FScrollbar::setPageSize (int document_size, int page_size)
 //----------------------------------------------------------------------
 void FScrollbar::setOrientation (fc::orientation o)
 {
-  std::size_t nf = 0;
+  std::size_t nf{0};
   length = ( getHeight() > getWidth() ) ? getHeight() : getWidth();
 
   if ( o == fc::vertical && bar_orientation == fc::horizontal )
@@ -158,7 +158,7 @@ void FScrollbar::setGeometry ( const FPoint& pos, const FSize& size
 
   FWidget::setGeometry (pos, size, adjust);
 
-  std::size_t nf = 0;
+  std::size_t nf{0};
   std::size_t w = size.getWidth();
   std::size_t h = size.getHeight();
   length = ( h > w ) ? h : w;
@@ -257,8 +257,6 @@ void FScrollbar::drawBar()
 //----------------------------------------------------------------------
 void FScrollbar::onMouseDown (FMouseEvent* ev)
 {
-  int mouse_x, mouse_y;
-
   if ( ev->getButton() != fc::LeftButton
     && ev->getButton() != fc::MiddleButton )
     return;
@@ -266,8 +264,8 @@ void FScrollbar::onMouseDown (FMouseEvent* ev)
   if ( min == max )
     return;
 
-  mouse_x = ev->getX();
-  mouse_y = ev->getY();
+  int mouse_x = ev->getX();
+  int mouse_y = ev->getY();
 
   if ( ev->getButton() == fc::MiddleButton )
   {
@@ -330,14 +328,12 @@ void FScrollbar::onMouseUp (FMouseEvent* ev)
 //----------------------------------------------------------------------
 void FScrollbar::onMouseMove (FMouseEvent* ev)
 {
-  int mouse_x, mouse_y, new_scroll_type;
-
   if ( ev->getButton() != fc::LeftButton
     && ev->getButton() != fc::MiddleButton )
     return;
 
-  mouse_x = ev->getX();
-  mouse_y = ev->getY();
+  int mouse_x = ev->getX();
+  int mouse_y = ev->getY();
 
   if ( ev->getButton() == fc::MiddleButton )
   {
@@ -346,7 +342,7 @@ void FScrollbar::onMouseMove (FMouseEvent* ev)
   }
 
   // Process left button
-  new_scroll_type = getClickedScrollType(mouse_x, mouse_y);
+  int new_scroll_type = getClickedScrollType(mouse_x, mouse_y);
 
   if ( scroll_type == FScrollbar::scrollJump )
   {
@@ -476,10 +472,9 @@ void FScrollbar::draw()
 //----------------------------------------------------------------------
 void FScrollbar::drawVerticalBar()
 {
-  int z;
   setColor (wc.scrollbar_fg, wc.scrollbar_bg);
 
-  for (z = 1; z <= slider_pos; z++)
+  for (int z{1}; z <= slider_pos; z++)
   {
     print() << FPoint(1, 1 + z);
     drawVerticalBackgroundLine();
@@ -490,7 +485,7 @@ void FScrollbar::drawVerticalBar()
   if ( isMonochron() )
     setReverse(false);
 
-  for (z = 1; z <= int(slider_length); z++)  // Draw slider
+  for (int z{1}; z <= int(slider_length); z++)  // Draw slider
   {
     print() << FPoint(1, 1 + slider_pos + z);
 
@@ -505,7 +500,7 @@ void FScrollbar::drawVerticalBar()
 
   setColor (wc.scrollbar_fg, wc.scrollbar_bg);
 
-  for (z = slider_pos + int(slider_length) + 1; z <= int(bar_length); z++)
+  for (int z = slider_pos + int(slider_length) + 1; z <= int(bar_length); z++)
   {
     print() << FPoint(1, 1 + z);
     drawVerticalBackgroundLine();
@@ -535,7 +530,6 @@ inline void FScrollbar::drawVerticalBackgroundLine()
 //----------------------------------------------------------------------
 void FScrollbar::drawHorizontalBar()
 {
-  int z;
   setColor (wc.scrollbar_fg, wc.scrollbar_bg);
 
   if ( isNewFont() )
@@ -543,7 +537,7 @@ void FScrollbar::drawHorizontalBar()
   else
     print() << FPoint(2, 1);
 
-  for (z = 0; z < slider_pos; z++)
+  for (int z{0}; z < slider_pos; z++)
     drawHorizontalBackgroundColumn();
 
   setColor (wc.scrollbar_bg, wc.scrollbar_fg);
@@ -551,14 +545,14 @@ void FScrollbar::drawHorizontalBar()
   if ( isMonochron() )
     setReverse(false);
 
-  for (z = 0; z < int(slider_length); z++)  // Draw slider
+  for (int z{0}; z < int(slider_length); z++)  // Draw slider
     print (' ');
 
   if ( isMonochron() )
     setReverse(true);
 
   setColor (wc.scrollbar_fg, wc.scrollbar_bg);
-  z = slider_pos + int(slider_length) + 1;
+  int z = slider_pos + int(slider_length) + 1;
 
   for (; z <= int(bar_length); z++)
     drawHorizontalBackgroundColumn();
@@ -745,7 +739,7 @@ int FScrollbar::getSliderClickPos (int mouse_x, int mouse_y)
 //----------------------------------------------------------------------
 void FScrollbar::jumpToClickPos (int x, int y)
 {
-  int new_val;
+  int new_val{};
 
   if ( bar_orientation == fc::vertical )
   {
diff --git a/src/fscrollview.cpp b/src/fscrollview.cpp
index 168ca409..0b02e455 100644
--- a/src/fscrollview.cpp
+++ b/src/fscrollview.cpp
@@ -114,7 +114,6 @@ void FScrollView::setScrollHeight (std::size_t height)
 //----------------------------------------------------------------------
 void FScrollView::setScrollSize (const FSize& size)
 {
-  int xoffset_end, yoffset_end;
   std::size_t width = size.getWidth();
   std::size_t height = size.getHeight();
 
@@ -139,8 +138,8 @@ void FScrollView::setScrollSize (const FSize& size)
     child_print_area = viewport;
   }
 
-  xoffset_end = int(getScrollWidth() - getViewportWidth());
-  yoffset_end = int(getScrollHeight() - getViewportHeight());
+  int xoffset_end = int(getScrollWidth() - getViewportWidth());
+  int yoffset_end = int(getScrollHeight() - getViewportHeight());
   setTopPadding (1 - getScrollY());
   setLeftPadding (1 - getScrollX());
   setBottomPadding (1 - (yoffset_end - getScrollY()));
@@ -350,8 +349,8 @@ void FScrollView::scrollTo (int x, int y)
   int  yoffset_end = int(getScrollHeight() - getViewportHeight());
   std::size_t save_width = viewport_geometry.getWidth();
   std::size_t save_height = viewport_geometry.getHeight();
-  bool changeX = false;
-  bool changeY = false;
+  bool changeX{false};
+  bool changeY{false};
   x--;
   y--;
 
@@ -516,7 +515,7 @@ void FScrollView::onKeyPress (FKeyEvent* ev)
 //----------------------------------------------------------------------
 void FScrollView::onWheel (FWheelEvent* ev)
 {
-  int distance = 4;
+  int distance{4};
 
   switch ( ev->getWheel() )
   {
@@ -576,8 +575,8 @@ void FScrollView::onChildFocusIn (FFocusEvent*)
 
   if ( ! vp_geometry.contains(widget_geometry) )
   {
-    int x
-      , y
+    int x{}
+      , y{}
       , vx = vp_geometry.getX()
       , vy = vp_geometry.getY()
       , wx = widget_geometry.getX()
@@ -712,10 +711,10 @@ void FScrollView::copy2area()
   if ( print_area->height <= ay + y_end )
     y_end = print_area->height - ay;
 
-  for (int y = 0; y < y_end; y++)  // line loop
+  for (int y{0}; y < y_end; y++)  // line loop
   {
-    charData* vc;  // viewport character
-    charData* ac;  // area character
+    charData* vc{};  // viewport character
+    charData* ac{};  // area character
     int v_line_len = viewport->width;
     int a_line_len = print_area->width + print_area->right_shadow;
     vc = &viewport->text[(dy + y) * v_line_len + dx];
@@ -896,7 +895,7 @@ void FScrollView::setViewportCursor()
 
   FPoint cursor_pos ( viewport->input_cursor_x - 1
                     , viewport->input_cursor_y - 1 );
-  FPoint window_cursor_pos = getViewportCursorPos();
+  FPoint window_cursor_pos(getViewportCursorPos());
   print_area->input_cursor_x = window_cursor_pos.getX();
   print_area->input_cursor_y = window_cursor_pos.getY();
 
@@ -911,8 +910,8 @@ void FScrollView::setViewportCursor()
 void FScrollView::cb_VBarChange (FWidget*, FDataPtr)
 {
   FScrollbar::sType scrollType = vbar->getScrollType();
-  int distance = 1;
-  int wheel_distance = 4;
+  int distance{1};
+  int wheel_distance{4};
 
   if ( scrollType >= FScrollbar::scrollStepBackward
     && scrollType <= FScrollbar::scrollWheelDown )
@@ -963,8 +962,8 @@ void FScrollView::cb_VBarChange (FWidget*, FDataPtr)
 void FScrollView::cb_HBarChange (FWidget*, FDataPtr)
 {
   FScrollbar::sType scrollType = hbar->getScrollType();
-  int distance = 1;
-  int wheel_distance = 4;
+  int distance{1};
+  int wheel_distance{4};
 
   if ( scrollType >= FScrollbar::scrollStepBackward
     && scrollType <= FScrollbar::scrollWheelDown )
diff --git a/src/fstatusbar.cpp b/src/fstatusbar.cpp
index d4f9b45f..70f448e1 100644
--- a/src/fstatusbar.cpp
+++ b/src/fstatusbar.cpp
@@ -155,7 +155,7 @@ FStatusBar::~FStatusBar()  // destructor
 //----------------------------------------------------------------------
 void FStatusBar::setMessage (const FString& mgs)
 {
-  text = mgs;
+  text.setString(mgs);
 }
 
 //----------------------------------------------------------------------
@@ -187,10 +187,6 @@ void FStatusBar::hide()
 //----------------------------------------------------------------------
 void FStatusBar::drawMessage()
 {
-  std::size_t termWidth;
-  int space_offset;
-  bool isLastActiveFocus, hasKeys;
-
   if ( ! (isVisible() ) )
     return;
 
@@ -198,9 +194,10 @@ void FStatusBar::drawMessage()
     return;
 
   x = x_msg;
-  termWidth = getDesktopWidth();
-  space_offset = 1;
-  hasKeys = bool(! key_list.empty());
+  int space_offset{1};
+  bool hasKeys = bool(! key_list.empty());
+  bool isLastActiveFocus{false};
+  std::size_t termWidth = getDesktopWidth();
 
   if ( hasKeys )
   {
@@ -352,7 +349,7 @@ void FStatusBar::onMouseDown (FMouseEvent* ev)
 
   if ( ! key_list.empty() )
   {
-    int X = 1;
+    int X{1};
     auto iter = key_list.begin();
     auto last = key_list.end();
 
@@ -395,7 +392,7 @@ void FStatusBar::onMouseUp (FMouseEvent* ev)
 
     if ( ! key_list.empty() )
     {
-      int X = 1;
+      int X{1};
       auto iter = key_list.begin();
       auto last = key_list.end();
 
@@ -439,8 +436,8 @@ void FStatusBar::onMouseMove (FMouseEvent* ev)
 
   if ( mouse_down && ! key_list.empty() )
   {
-    bool focus_changed = false;
-    int X = 1;
+    bool focus_changed{false};
+    int X{1};
     auto iter = key_list.begin();
     auto last = key_list.end();
 
@@ -584,9 +581,7 @@ void FStatusBar::drawKey (keyList::const_iterator iter)
 {
   // Draw not active key
 
-  std::size_t txt_length;
   auto item = *iter;
-
   setColor (wc.statusbar_hotkey_fg, wc.statusbar_hotkey_bg);
   x++;
   print (' ');
@@ -595,7 +590,7 @@ void FStatusBar::drawKey (keyList::const_iterator iter)
   setColor (wc.statusbar_fg, wc.statusbar_bg);
   x++;
   print ('-');
-  txt_length = item->getText().getLength();
+  std::size_t txt_length = item->getText().getLength();
   x += int(txt_length);
 
   if ( x - 1 <= int(screenWidth) )
@@ -603,8 +598,8 @@ void FStatusBar::drawKey (keyList::const_iterator iter)
   else
   {
     // Print ellipsis
-    print ( item->getText()
-                 .left(txt_length + screenWidth - std::size_t(x) - 1) );
+    std::size_t len = txt_length + screenWidth - std::size_t(x) - 1;
+    print (item->getText().left(len));
     print ("..");
   }
 
@@ -644,7 +639,6 @@ void FStatusBar::drawActiveKey (keyList::const_iterator iter)
 {
   // Draw active key
 
-  std::size_t txt_length;
   auto item = *iter;
 
   if ( isMonochron() )
@@ -659,7 +653,7 @@ void FStatusBar::drawActiveKey (keyList::const_iterator iter)
   setColor (wc.statusbar_active_fg, wc.statusbar_active_bg);
   x++;
   print ('-');
-  txt_length = item->getText().getLength();
+  std::size_t txt_length = item->getText().getLength();
   x += int(txt_length);
 
   if ( x <= int(screenWidth) )
diff --git a/src/fstring.cpp b/src/fstring.cpp
index 433b90de..7f5cac65 100644
--- a/src/fstring.cpp
+++ b/src/fstring.cpp
@@ -52,12 +52,9 @@ FString::FString (std::size_t len)
 //----------------------------------------------------------------------
 FString::FString (std::size_t len, wchar_t c)
 {
-  wchar_t* ps;
-  wchar_t* pe;
-
   initLength(len);
-  ps = string;
-  pe = string + len;
+  const wchar_t* ps = string;
+  wchar_t* pe = string + len;
 
   while ( pe != ps )
     *--pe = c;
@@ -194,9 +191,8 @@ const FString FString::operator + (const FString& s)
 //----------------------------------------------------------------------
 const FString FString::operator + (const wchar_t c)
 {
-  wchar_t s[2];
+  wchar_t s[2]{};
   s[0] = c;
-  s[1] = L'\0';
   FString tmp(string);
   tmp._insert (length, 1, s);
   return tmp;
@@ -205,9 +201,8 @@ const FString FString::operator + (const wchar_t c)
 //----------------------------------------------------------------------
 const FString FString::operator + (const char c)
 {
-  wchar_t s[2];
+  wchar_t s[2]{};
   s[0] = wchar_t(c & 0xff);
-  s[1] = L'\0';
   FString tmp(string);
   tmp._insert (length, 1, s);
   return tmp;
@@ -247,7 +242,7 @@ FString& FString::operator << (const char c)
 //----------------------------------------------------------------------
 FString& FString::operator << (const sInt16 num)
 {
-  FString numstr = FString().setNumber(num);
+  FString numstr(FString().setNumber(num));
   _insert (length, numstr.length, numstr.string);
   return *this;
 }
@@ -255,7 +250,7 @@ FString& FString::operator << (const sInt16 num)
 //----------------------------------------------------------------------
 FString& FString::operator << (const uInt16 num)
 {
-  FString numstr = FString().setNumber(num);
+  FString numstr(FString().setNumber(num));
   _insert (length, numstr.length, numstr.string);
   return *this;
 }
@@ -263,7 +258,7 @@ FString& FString::operator << (const uInt16 num)
 //----------------------------------------------------------------------
 FString& FString::operator << (const int num)
 {
-  FString numstr = FString().setNumber(num);
+  FString numstr(FString().setNumber(num));
   _insert (length, numstr.length, numstr.string);
   return *this;
 }
@@ -271,7 +266,7 @@ FString& FString::operator << (const int num)
 //----------------------------------------------------------------------
 FString& FString::operator << (const uInt num)
 {
-  FString numstr = FString().setNumber(num);
+  FString numstr(FString().setNumber(num));
   _insert (length, numstr.length, numstr.string);
   return *this;
 }
@@ -279,7 +274,7 @@ FString& FString::operator << (const uInt num)
 //----------------------------------------------------------------------
 FString& FString::operator << (const long num)
 {
-  FString numstr = FString().setNumber(num);
+  FString numstr(FString().setNumber(num));
   _insert (length, numstr.length, numstr.string);
   return *this;
 }
@@ -287,7 +282,7 @@ FString& FString::operator << (const long num)
 //----------------------------------------------------------------------
 FString& FString::operator << (const uLong num)
 {
-  FString numstr = FString().setNumber(num);
+  FString numstr(FString().setNumber(num));
   _insert (length, numstr.length, numstr.string);
   return *this;
 }
@@ -295,7 +290,7 @@ FString& FString::operator << (const uLong num)
 //----------------------------------------------------------------------
 FString& FString::operator << (const float num)
 {
-  FString numstr = FString().setNumber(num);
+  FString numstr(FString().setNumber(num));
   _insert (length, numstr.length, numstr.string);
   return *this;
 }
@@ -303,7 +298,7 @@ FString& FString::operator << (const float num)
 //----------------------------------------------------------------------
 FString& FString::operator << (const double num)
 {
-  FString numstr = FString().setNumber(num);
+  FString numstr(FString().setNumber(num));
   _insert (length, numstr.length, numstr.string);
   return *this;
 }
@@ -311,7 +306,7 @@ FString& FString::operator << (const double num)
 //----------------------------------------------------------------------
 FString& FString::operator << (const lDouble num)
 {
-  FString numstr = FString().setNumber(num);
+  FString numstr(FString().setNumber(num));
   _insert (length, numstr.length, numstr.string);
   return *this;
 }
@@ -419,14 +414,11 @@ const FString& FString::operator () ()
 //----------------------------------------------------------------------
 std::size_t FString::getUTF8length() const
 {
-  std::size_t len;
-  const char* s;
-
   if ( ! string )
     return 0;
 
-  len = 0;
-  s = c_str();
+  std::size_t len = 0;
+  const char* s = c_str();
 
   while ( *s )
     len += std::size_t((*s++ & 0xc0) != 0x80);
@@ -438,8 +430,8 @@ std::size_t FString::getUTF8length() const
 FString& FString::sprintf (const FString format, ...)
 {
   static constexpr int BUFSIZE = 4096;
-  wchar_t buffer[BUFSIZE];
-  va_list args;
+  wchar_t buffer[BUFSIZE]{};
+  va_list args{};
 
   if ( ! format )
   {
@@ -518,9 +510,8 @@ const std::string FString::toString() const
 //----------------------------------------------------------------------
 FString FString::toLower() const
 {
-  wchar_t* p;
   FString s(string);
-  p = s.string;
+  wchar_t* p = s.string;
 
   if ( p )
   {
@@ -537,9 +528,8 @@ FString FString::toLower() const
 //----------------------------------------------------------------------
 FString FString::toUpper() const
 {
-  wchar_t* p;
   FString s(string);
-  p = s.string;
+  wchar_t* p = s.string;
 
   if ( p )
   {
@@ -556,8 +546,7 @@ FString FString::toUpper() const
 //----------------------------------------------------------------------
 sInt16 FString::toShort() const
 {
-  long num;
-  num = toLong();
+  long num = toLong();
 
   if ( num > SHRT_MAX )
     throw std::overflow_error ("overflow");
@@ -571,8 +560,7 @@ sInt16 FString::toShort() const
 //----------------------------------------------------------------------
 uInt16 FString::toUShort() const
 {
-  uLong num;
-  num = uLong(toULong());
+  uLong num = uLong(toULong());
 
   if ( num > USHRT_MAX )
     throw std::overflow_error ("overflow");
@@ -583,8 +571,7 @@ uInt16 FString::toUShort() const
 //----------------------------------------------------------------------
 int FString::toInt() const
 {
-  long num;
-  num = toLong();
+  long num = toLong();
 
   if ( num > INT_MAX )
     throw std::overflow_error ("overflow");
@@ -598,8 +585,7 @@ int FString::toInt() const
 //----------------------------------------------------------------------
 uInt FString::toUInt() const
 {
-  uLong num;
-  num = uLong(toULong());
+  uLong num = uLong(toULong());
 
   if ( num > UINT_MAX )
     throw std::overflow_error ("overflow");
@@ -610,19 +596,12 @@ uInt FString::toUInt() const
 //----------------------------------------------------------------------
 long FString::toLong() const
 {
-  bool neg;
-  long num;
-  long tenth_limit;
-  long tenth_limit_digit;
-  wchar_t* p;
-  FString s;
-
-  neg = false;
-  num = 0;
-  tenth_limit = LONG_MAX / 10;
-  tenth_limit_digit = LONG_MAX % 10;
-  s = trim();
-  p = s.string;
+  bool neg{false};
+  long num{0};
+  long tenth_limit{LONG_MAX / 10};
+  long tenth_limit_digit{LONG_MAX % 10};
+  FString s(trim());
+  const wchar_t* p = s.string;
 
   if ( ! p )
     throw std::invalid_argument ("null value");
@@ -671,17 +650,11 @@ long FString::toLong() const
 //----------------------------------------------------------------------
 uLong FString::toULong() const
 {
-  uLong num;
-  uLong tenth_limit;
-  uLong tenth_limit_digit;
-  wchar_t* p;
-  FString s;
-
-  num = 0;
-  tenth_limit = ULONG_MAX / 10;
-  tenth_limit_digit = ULONG_MAX % 10;
-  s = trim();
-  p = s.string;
+  uLong num{0};
+  uLong tenth_limit{ULONG_MAX / 10};
+  uLong tenth_limit_digit{ULONG_MAX % 10};
+  FString s(trim());
+  const wchar_t* p = s.string;
 
   if ( ! p )
     throw std::invalid_argument ("null value");
@@ -721,8 +694,7 @@ uLong FString::toULong() const
 //----------------------------------------------------------------------
 float FString::toFloat() const
 {
-  double num;
-  num = toDouble();
+  double num = toDouble();
 
   if ( num > double(FLT_MAX) || num < double(-FLT_MAX) )
     throw std::overflow_error ("overflow");
@@ -736,16 +708,14 @@ float FString::toFloat() const
 //----------------------------------------------------------------------
 double FString::toDouble() const
 {
-  wchar_t* p;
-  double ret;
-
   if ( ! string )
     throw std::invalid_argument ("null value");
 
   if ( ! *string )
     throw std::invalid_argument ("empty value");
 
-  ret = std::wcstod(string, &p);
+  wchar_t* p{};
+  double ret = std::wcstod(string, &p);
 
   if ( p != 0 && *p != '\0' )
     throw std::invalid_argument ("no valid floating point value");
@@ -765,14 +735,13 @@ double FString::toDouble() const
 //----------------------------------------------------------------------
 FString FString::ltrim() const
 {
-  wchar_t* p;
   FString s(string);
 
   // handle NULL and empty string
   if ( ! (string && *string) )
     return s;
 
-  p = s.string;
+  const wchar_t* p = s.string;
 
   while ( std::iswspace(wint_t(*p)) )
     p++;
@@ -783,16 +752,14 @@ FString FString::ltrim() const
 //----------------------------------------------------------------------
 FString FString::rtrim() const
 {
-  wchar_t* p;
-  wchar_t* last;
   FString s(string);
 
   // handle NULL and empty string
   if ( ! (string && *string) )
     return s;
 
-  p = s.string;
-  last = p + length;
+  wchar_t* p = s.string;
+  wchar_t* last = p + length;
 
   while ( std::iswspace(wint_t(*--last)) && last > p )
     s.length--;
@@ -819,7 +786,6 @@ FString FString::trim() const
 //----------------------------------------------------------------------
 FString FString::left (std::size_t len) const
 {
-  wchar_t* p;
   FString s(string);
 
   // handle NULL and empty string
@@ -829,7 +795,7 @@ FString FString::left (std::size_t len) const
   if ( len > length )
     return s;
 
-  p = s.string;
+  wchar_t* p = s.string;
   s.length = len;
   *(p + len) = '\0';
   return s;
@@ -838,7 +804,6 @@ FString FString::left (std::size_t len) const
 //----------------------------------------------------------------------
 FString FString::right (std::size_t len) const
 {
-  wchar_t* p;
   FString s(string);
 
   // handle NULL and empty string
@@ -848,7 +813,7 @@ FString FString::right (std::size_t len) const
   if ( len > length )
     return s;
 
-  p = s.string;
+  const wchar_t* p = s.string;
   p += (length - len);
   return FString(p);
 }
@@ -856,8 +821,6 @@ FString FString::right (std::size_t len) const
 //----------------------------------------------------------------------
 FString FString::mid (std::size_t pos, std::size_t len) const
 {
-  wchar_t* p;
-  wchar_t* first;
   FString s(string);
 
   // handle NULL and empty string
@@ -873,8 +836,8 @@ FString FString::mid (std::size_t pos, std::size_t len) const
   if ( pos > length || pos + len - 1 > length || len == 0 )
     return FString(L"");
 
-  p = s.string;
-  first = p + pos - 1;
+  wchar_t* p = s.string;
+  wchar_t* first = p + pos - 1;
   *(first + len) = '\0';
   return FString(first);
 }
@@ -882,17 +845,15 @@ FString FString::mid (std::size_t pos, std::size_t len) const
 //----------------------------------------------------------------------
 FStringList FString::split (const FString& delimiter)
 {
-  wchar_t* rest;
-  wchar_t* token;
   FString s(string);
-  FStringList string_list;
+  FStringList string_list{};
 
   // handle NULL and empty string
   if ( ! (string && *string) )
     return string_list;
 
-  rest = nullptr;
-  token = extractToken(&rest, s.string, delimiter.wc_str());
+  wchar_t* rest{nullptr};
+  const wchar_t* token = extractToken(&rest, s.string, delimiter.wc_str());
 
   while ( token )
   {
@@ -913,11 +874,9 @@ FString& FString::setString (const FString& s)
 //----------------------------------------------------------------------
 FString& FString::setNumber (sInt64 num)
 {
-  wchar_t* s;
-  bool neg;
+  bool neg{false};
   wchar_t buf[30];
-
-  s = &buf[29];
+  wchar_t* s = &buf[29];
 
   if ( num < 0 )
   {
@@ -948,10 +907,8 @@ FString& FString::setNumber (sInt64 num)
 //----------------------------------------------------------------------
 FString& FString::setNumber (uInt64 num)
 {
-  wchar_t* s;
   wchar_t buf[30];
-
-  s = &buf[29];
+  wchar_t* s = &buf[29];
   *s = '\0';
 
   do
@@ -968,10 +925,8 @@ FString& FString::setNumber (uInt64 num)
 //----------------------------------------------------------------------
 FString& FString::setNumber (lDouble f_num, int precision)
 {
-  wchar_t* s;
   wchar_t format[20];  // = "%.<precision>Lg"
-
-  s = &format[0];
+  wchar_t* s = &format[0];
   *s++ = L'%';
   *s++ = L'.';
 
@@ -1001,13 +956,10 @@ FString& FString::setNumber (lDouble f_num, int precision)
 //----------------------------------------------------------------------
 FString& FString::setFormatedNumber (sInt64 num, char separator)
 {
-  int n;
-  wchar_t* s;
-  bool neg;
+  bool neg{false};
+  int n{0};
   wchar_t buf[30];
-
-  n = 0;
-  s = &buf[29];
+  wchar_t* s = &buf[29];
 
   if ( separator == 0 )
     separator = ' ';
@@ -1044,12 +996,9 @@ FString& FString::setFormatedNumber (sInt64 num, char separator)
 //----------------------------------------------------------------------
 FString& FString::setFormatedNumber (uInt64 num, char separator)
 {
-  int n;
-  wchar_t* s;
+  int n{0};
   wchar_t buf[30];
-
-  n = 0;
-  s = &buf[29];
+  wchar_t* s = &buf[29];
   *s = L'\0';
 
   if ( separator == 0 )
@@ -1177,8 +1126,6 @@ const FString& FString::insert (const FString& s, std::size_t pos)
 //----------------------------------------------------------------------
 FString FString::replace (const FString& from, const FString& to)
 {
-  wchar_t* p;
-  std::size_t from_length, to_length, pos;
   FString s(string);
 
   // handle NULL and empty string
@@ -1191,10 +1138,10 @@ FString FString::replace (const FString& from, const FString& to)
   if ( from.isEmpty() )
     return s;
 
-  p = s.string;
-  from_length = from.getLength();
-  to_length = to.getLength();
-  pos = 0;
+  const wchar_t* p = s.string;
+  std::size_t from_length = from.getLength();
+  std::size_t to_length = to.getLength();
+  std::size_t pos{0};
 
   while ( *p )
   {
@@ -1218,10 +1165,8 @@ FString FString::replace (const FString& from, const FString& to)
 //----------------------------------------------------------------------
 FString FString::replaceControlCodes() const
 {
-  wchar_t* p;
   FString s(string);
-
-  p = s.string;
+  wchar_t* p = s.string;
 
   if ( p )
   {
@@ -1252,18 +1197,16 @@ FString FString::replaceControlCodes() const
 //----------------------------------------------------------------------
 FString FString::expandTabs (int tabstop) const
 {
-  uLong last;
-  FStringList tab_split;
   FString instr(string);
-  FString outstr;
+  FString outstr{};
 
   if ( tabstop <= 0 )
     return instr;
 
-  tab_split = instr.split("\t");
-  last = tab_split.size();
+  FStringList tab_split = instr.split("\t");
+  uLong last = tab_split.size();
 
-  for (std::size_t i = 0; i < last; i++)
+  for (std::size_t i{0}; i < last; i++)
   {
     std::size_t len = tab_split[i].getLength();
     std::size_t tab_len = std::size_t(tabstop);
@@ -1280,14 +1223,13 @@ FString FString::expandTabs (int tabstop) const
 //----------------------------------------------------------------------
 FString FString::removeDel() const
 {
-  wchar_t* p;
   FString s(string);
-  p = s.string;
+  const wchar_t* p = s.string;
 
   if ( p )
   {
-    uInt i = 0;
-    uInt d = 0;
+    uInt i{0};
+    uInt d{0};
 
     while ( *p )
     {
@@ -1319,9 +1261,8 @@ FString FString::removeDel() const
 //----------------------------------------------------------------------
 FString FString::removeBackspaces() const
 {
-  wchar_t* p;
   FString s(string);
-  p = s.string;
+  const wchar_t* p = s.string;
 
   if ( p )
   {
@@ -1502,7 +1443,7 @@ inline void FString::_insert ( std::size_t pos
   }
   else
   {
-    std::size_t x;
+    std::size_t x{};
 
     if ( length + len <= capacity() )
     {
@@ -1517,9 +1458,9 @@ inline void FString::_insert ( std::size_t pos
     }
     else
     {
-      wchar_t* sptr;
       // output string > bufsize
       bufsize = FWDBUFFER + length + len + 1;
+      wchar_t* sptr{};
 
       try
       {
@@ -1531,7 +1472,7 @@ inline void FString::_insert ( std::size_t pos
         return;
       }
 
-      std::size_t y = 0;
+      std::size_t y{0};
 
       for (x = 0; x < pos; x++)           // left side
         sptr[y++] = string[x];
@@ -1562,8 +1503,8 @@ inline void FString::_remove (std::size_t pos, std::size_t len)
   }
   else
   {
-    wchar_t* sptr;
     bufsize = length + 1 - len + FWDBUFFER;
+    wchar_t* sptr{};
 
     try
     {
@@ -1575,7 +1516,7 @@ inline void FString::_remove (std::size_t pos, std::size_t len)
       return;
     }
 
-    std::size_t x, y = 0;
+    std::size_t x{}, y{};
 
     for (x = 0; x < pos; x++)             // left side
       sptr[y++] = string[x];
@@ -1592,11 +1533,6 @@ inline void FString::_remove (std::size_t pos, std::size_t len)
 //----------------------------------------------------------------------
 inline char* FString::wc_to_c_str (const wchar_t s[]) const
 {
-  int mblength
-    , size
-    , dest_size;
-  const wchar_t* src;
-
   if ( ! s )  // handle NULL string
     return 0;
 
@@ -1619,9 +1555,9 @@ inline char* FString::wc_to_c_str (const wchar_t s[]) const
   if ( c_string )
     delete[](c_string);
 
-  size = int(std::wcslen(s)) + 1;
-  dest_size = size * int(CHAR_SIZE);
-  src = s;
+  int size = int(std::wcslen(s)) + 1;
+  int dest_size = size * int(CHAR_SIZE);
+  const wchar_t* src = s;
   std::mbstate_t state;
   std::memset (&state, '\0', sizeof(mbstate_t));
 
@@ -1638,7 +1574,8 @@ inline char* FString::wc_to_c_str (const wchar_t s[]) const
     return 0;
   }
 
-  mblength = int(std::wcsrtombs (c_string, &src, std::size_t(dest_size), &state));
+  int mblength = \
+      int(std::wcsrtombs (c_string, &src, std::size_t(dest_size), &state));
 
   if ( mblength == -1 && errno != EILSEQ )
   {
@@ -1653,12 +1590,6 @@ inline char* FString::wc_to_c_str (const wchar_t s[]) const
 //----------------------------------------------------------------------
 inline wchar_t* FString::c_to_wc_str (const char s[]) const
 {
-  int wclength
-    , size
-    , dest_size;
-  const char* src;
-  wchar_t* dest;
-
   if ( ! s )   // handle NULL string
     return 0;
 
@@ -1676,9 +1607,10 @@ inline wchar_t* FString::c_to_wc_str (const char s[]) const
     }
   }
 
-  size = int(std::strlen(s)) + 1;
-  dest_size = size * int(CHAR_SIZE);
-  src = s;
+  int size = int(std::strlen(s)) + 1;
+  int dest_size = size * int(CHAR_SIZE);
+  const char* src = s;
+  wchar_t* dest{};
   std::mbstate_t state;
   std::memset (&state, '\0', sizeof(mbstate_t));
 
@@ -1694,7 +1626,8 @@ inline wchar_t* FString::c_to_wc_str (const char s[]) const
     return 0;
   }
 
-  wclength = int(std::mbsrtowcs (dest, &src, std::size_t(dest_size), &state));
+  int wclength = \
+      int(std::mbsrtowcs (dest, &src, std::size_t(dest_size), &state));
 
   if ( wclength == -1 )
   {
@@ -1724,8 +1657,7 @@ inline wchar_t* FString::extractToken ( wchar_t* rest[]
                                       , const wchar_t s[]
                                       , const wchar_t delim[] )
 {
-  wchar_t* token;
-  token = ( s ) ? const_cast<wchar_t*>(s) : *rest;
+  wchar_t* token = ( s ) ? const_cast<wchar_t*>(s) : *rest;
 
   if ( ! token )
     return 0;
@@ -1841,11 +1773,9 @@ std::ostream& operator << (std::ostream& outstr, const FString& s)
 //----------------------------------------------------------------------
 std::istream& operator >> (std::istream& instr, FString& s)
 {
-  const wchar_t* wc_str;
-  char buf[FString::INPBUFFER + 1];
-
+  char buf[FString::INPBUFFER + 1]{};
   instr.getline (buf, FString::INPBUFFER);
-  wc_str = s.c_to_wc_str(buf);
+  const wchar_t* wc_str = s.c_to_wc_str(buf);
 
   if ( wc_str )
   {
@@ -1868,7 +1798,7 @@ std::wostream& operator << (std::wostream& outstr, const FString& s)
 //----------------------------------------------------------------------
 std::wistream& operator >> (std::wistream& instr, FString& s)
 {
-  wchar_t buf[FString::INPBUFFER + 1];
+  wchar_t buf[FString::INPBUFFER + 1]{};
   instr.getline (buf, FString::INPBUFFER);
   s._assign (buf);
   return instr;
diff --git a/src/fswitch.cpp b/src/fswitch.cpp
index 215c7504..7d8c9307 100644
--- a/src/fswitch.cpp
+++ b/src/fswitch.cpp
@@ -141,8 +141,8 @@ void FSwitch::drawCheckButton()
 //----------------------------------------------------------------------
 inline void FSwitch::drawChecked()
 {
-  wchar_t on[6] = L"  On ";
-  wchar_t off[6] = L" Off ";
+  wchar_t on[6]{L"  On "};
+  wchar_t off[6]{L" Off "};
 
   if ( hasFocus() && ! button_pressed )
   {
@@ -190,8 +190,8 @@ inline void FSwitch::drawChecked()
 //----------------------------------------------------------------------
 inline void FSwitch::drawUnchecked()
 {
-  wchar_t on[6] = L"  On ";
-  wchar_t off[6] = L" Off ";
+  wchar_t on[6]{L"  On "};
+  wchar_t off[6]{L" Off "};
 
   setColor (wc.button_inactive_fg, wc.button_inactive_bg);
 
diff --git a/src/fterm.cpp b/src/fterm.cpp
index cd34954c..5dfeb231 100644
--- a/src/fterm.cpp
+++ b/src/fterm.cpp
@@ -61,39 +61,39 @@ namespace finalcut
 {
 
 // global FTerm object
-static FTerm* init_term_object = nullptr;
+static FTerm* init_term_object{nullptr};
 
 // global init state
-static bool term_initialized = false;
+static bool term_initialized{false};
 
 // function pointer
 int (*FTerm::Fputchar)(int);
 
 // static class attributes
-FTerm::initializationValues FTerm::init_values;
-FTermData*      FTerm::data           = nullptr;
-FSystem*        FTerm::fsys           = nullptr;
-FOptiMove*      FTerm::opti_move      = nullptr;
-FOptiAttr*      FTerm::opti_attr      = nullptr;
-FTermDetection* FTerm::term_detection = nullptr;
-FTermXTerminal* FTerm::xterm          = nullptr;
-FKeyboard*      FTerm::keyboard       = nullptr;
-FMouseControl*  FTerm::mouse          = nullptr;
+FTerm::initializationValues FTerm::init_values{};
+FTermData*      FTerm::data          {nullptr};
+FSystem*        FTerm::fsys          {nullptr};
+FOptiMove*      FTerm::opti_move     {nullptr};
+FOptiAttr*      FTerm::opti_attr     {nullptr};
+FTermDetection* FTerm::term_detection{nullptr};
+FTermXTerminal* FTerm::xterm         {nullptr};
+FKeyboard*      FTerm::keyboard      {nullptr};
+FMouseControl*  FTerm::mouse         {nullptr};
 
 #if defined(UNIT_TEST)
-  FTermLinux*   FTerm::linux          = nullptr;
-  FTermFreeBSD* FTerm::freebsd        = nullptr;
-  FTermOpenBSD* FTerm::openbsd        = nullptr;
+  FTermLinux*   FTerm::linux         {nullptr};
+  FTermFreeBSD* FTerm::freebsd       {nullptr};
+  FTermOpenBSD* FTerm::openbsd       {nullptr};
 #elif defined(__linux__)
-  FTermLinux*   FTerm::linux          = nullptr;
+  FTermLinux*   FTerm::linux         {nullptr};
 #elif defined(__FreeBSD__) || defined(__DragonFly__)
-  FTermFreeBSD* FTerm::freebsd        = nullptr;
+  FTermFreeBSD* FTerm::freebsd       {nullptr};
 #elif defined(__NetBSD__) || defined(__OpenBSD__)
-  FTermOpenBSD* FTerm::openbsd        = nullptr;
+  FTermOpenBSD* FTerm::openbsd       {nullptr};
 #endif
 
 #if DEBUG
-  FTermDebugData* FTerm::debug_data   = nullptr;
+  FTermDebugData* FTerm::debug_data  {nullptr};
 #endif
 
 // function prototypes
@@ -743,12 +743,11 @@ bool FTerm::setNewFont()
 //----------------------------------------------------------------------
 bool FTerm::setOldFont()
 {
-  bool retval = false;
+  bool retval{false};
 
   if ( ! (data->isNewFont() || data->isVGAFont()) )
     return false;
 
-  retval  = false;
   data->setNewFont(false);
   data->setVGAFont(false);
 
@@ -812,7 +811,7 @@ int FTerm::openConsole()
   if ( ! *termfilename || ! fsys )
     return 0;
 
-  for (std::size_t i = 0; terminal_devices[i] != 0; i++)
+  for (std::size_t i{0}; terminal_devices[i] != 0; i++)
   {
     fd = fsys->open(terminal_devices[i], O_RDWR, 0);
     data->setTTYFileDescriptor(fd);
@@ -831,7 +830,7 @@ int FTerm::closeConsole()
     data = FTerm::getFTermData();
 
   int fd = data->getTTYFileDescriptor();
-  int ret = -1;
+  int ret{-1};
 
   if ( fd < 0 )  // console is already closed
     return 0;
@@ -863,7 +862,7 @@ char* FTerm::cursorsVisibilityString (bool enable)
 {
   // Hides or shows the input cursor on the terminal
 
-  char* visibility_str = nullptr;
+  char* visibility_str{nullptr};
 
   if ( data->isCursorHidden() == enable )
     return 0;
@@ -894,9 +893,9 @@ void FTerm::detectTermSize()
   if ( ! data )
     data = FTerm::getFTermData();
 
-  struct winsize win_size;
+  struct winsize win_size{};
   auto& term_geometry = data->getTermGeometry();
-  int ret;
+  int ret{};
   errno = 0;
 
   do
@@ -1110,7 +1109,7 @@ void FTerm::setEncoding (fc::encoding enc)
   {
     if ( enc == fc::VT100 || enc == fc::PC )
     {
-      char* empty = nullptr;
+      char* empty{nullptr};
       opti_move->set_tabular (empty);
     }
     else
@@ -1156,7 +1155,7 @@ wchar_t FTerm::charEncode (wchar_t c, fc::encoding enc)
 {
   wchar_t ch_enc = c;
 
-  for (std::size_t i = 0; i <= fc::lastCharItem; i++)
+  for (std::size_t i{0}; i <= fc::lastCharItem; i++)
   {
     if ( fc::character[i][fc::UTF8] == uInt(c) )
     {
@@ -1178,7 +1177,7 @@ wchar_t FTerm::cp437_to_unicode (uChar c)
   constexpr std::size_t UNICODE = 1;
   wchar_t ucs = wchar_t(c);
 
-  for (std::size_t i = 0; i <= fc::lastCP437Item; i++)
+  for (std::size_t i{0}; i <= fc::lastCP437Item; i++)
   {
     if ( fc::cp437_to_ucs[i][CP437] == c )  // found
     {
@@ -1197,7 +1196,7 @@ uChar FTerm::unicode_to_cp437 (wchar_t ucs)
   constexpr std::size_t UNICODE = 1;
   uChar c = '?';
 
-  for (std::size_t i = 0; i <= fc::lastCP437Item; i++)
+  for (std::size_t i{0}; i <= fc::lastCP437Item; i++)
   {
     if ( fc::cp437_to_ucs[i][UNICODE] == ucs )  // found
     {
@@ -1239,11 +1238,10 @@ bool FTerm::scrollTermReverse()
 void FTerm::putstringf (const char format[], ...)
 {
   assert ( format != 0 );
-  char  buf[512];
-  char* str;
-  va_list args;
+  char buf[512]{};
+  va_list args{};
 
-  str = buf;
+  char* str = buf;
   va_start (args, format);
   vsnprintf (str, sizeof(buf), format, args);
   va_end (args);
@@ -1379,7 +1377,7 @@ void FTerm::init_global_values (bool disable_alt_screen)
 //----------------------------------------------------------------------
 void FTerm::init_terminal_device_path()
 {
-  char termfilename[256] = { };
+  char termfilename[256]{};
   int  stdout_no = FTermios::getStdOut();
 
   if ( ttyname_r(stdout_no, termfilename, sizeof(termfilename)) )
@@ -1422,7 +1420,7 @@ void FTerm::init_alt_charset()
 
   if ( TCAP(fc::t_acs_chars) )
   {
-    for (std::size_t n = 0; TCAP(fc::t_acs_chars)[n]; n += 2)
+    for (std::size_t n{0}; TCAP(fc::t_acs_chars)[n]; n += 2)
     {
       // insert the VT100 key/value pairs into a map
       uChar p1 = uChar(TCAP(fc::t_acs_chars)[n]);
@@ -1438,7 +1436,7 @@ void FTerm::init_alt_charset()
   };
 
   // Update array 'character' with discovered VT100 pairs
-  for (std::size_t n = 0; n <= fc::lastKeyItem; n++ )
+  for (std::size_t n{0}; n <= fc::lastKeyItem; n++ )
   {
     uChar keyChar = uChar(fc::vt100_key_to_utf8[n][vt100_key]);
     uChar altChar = uChar(vt100_alt_char[keyChar]);
@@ -1463,7 +1461,7 @@ void FTerm::init_alt_charset()
 //----------------------------------------------------------------------
 void FTerm::init_pc_charset()
 {
-  bool reinit = false;
+  bool reinit{false};
 
   // rxvt does not support pc charset
   if ( isRxvtTerminal() || isUrxvtTerminal() )
@@ -1527,7 +1525,7 @@ void FTerm::init_cygwin_charmap()
     return;
 
   // PC encoding changes
-  for (std::size_t i = 0; i <= fc::lastCharItem; i++ )
+  for (std::size_t i{0}; i <= fc::lastCharItem; i++ )
   {
     if ( fc::character[i][fc::UTF8] == fc::BlackUpPointingTriangle )  // ▲
       fc::character[i][fc::PC] = 0x18;
@@ -1581,7 +1579,7 @@ void FTerm::init_teraterm_charmap()
   if ( ! isTeraTerm() )
     return;
 
-  for (std::size_t i = 0; i <= fc::lastCharItem; i++ )
+  for (std::size_t i{0}; i <= fc::lastCharItem; i++ )
     if ( fc::character[i][fc::PC] < 0x20 )
       fc::character[i][fc::PC] = fc::character[i][fc::ASCII];
 }
@@ -1709,14 +1707,12 @@ void FTerm::init_locale()
 {
   // Init current locale
 
-  char* locale_name;
-  char* locale_xterm;
   const char* termtype = data->getTermType();
-  locale_name = std::setlocale (LC_ALL, "");
+  const char* locale_name = std::setlocale (LC_ALL, "");
   std::setlocale (LC_NUMERIC, "");
 
   // Get XTERM_LOCALE
-  locale_xterm = std::getenv("XTERM_LOCALE");
+  const char* locale_xterm = std::getenv("XTERM_LOCALE");
 
   // set LC_ALL to XTERM_LOCALE
   if ( locale_xterm )
@@ -1761,7 +1757,7 @@ void FTerm::init_encoding()
 {
   // detect encoding and set the Fputchar function pointer
 
-  bool force_vt100 = false;  // VT100 line drawing (G1 character set)
+  bool force_vt100{false};  // VT100 line drawing (G1 character set)
   init_encoding_set();
 
   if ( isRxvtTerminal() && ! isUrxvtTerminal() )
@@ -1885,7 +1881,7 @@ void FTerm::init_tab_quirks()
 
   if ( enc == fc::VT100 || enc == fc::PC )
   {
-    char* empty = nullptr;
+    char* empty{nullptr};
     opti_move->set_tabular (empty);
   }
 }
@@ -1991,7 +1987,7 @@ char* FTerm::enableCursorString()
   // Returns the cursor enable string
 
   static constexpr std::size_t SIZE = 32;
-  static char enable_str[SIZE] = { };
+  static char enable_str[SIZE]{};
   const auto& vs = TCAP(fc::t_cursor_visible);
   const auto& ve = TCAP(fc::t_cursor_normal);
 
@@ -2043,8 +2039,8 @@ void FTerm::enableMouse()
   if ( ! init_values.mouse_support )
     return;
 
-  bool gpm_mouse = false;
-  bool xterm_mouse = false;
+  bool gpm_mouse{false};
+  bool xterm_mouse{false};
 
 #if defined(__linux__)
   if ( isLinuxTerm() && openConsole() == 0 )
diff --git a/src/ftermbuffer.cpp b/src/ftermbuffer.cpp
index 71c27619..328f9f0b 100644
--- a/src/ftermbuffer.cpp
+++ b/src/ftermbuffer.cpp
@@ -44,8 +44,8 @@ FTermBuffer::~FTermBuffer()  // destructor
 int FTermBuffer::writef (const FString format, ...)
 {
   static constexpr int BUFSIZE = 4096;
-  wchar_t buffer[BUFSIZE];
-  va_list args;
+  wchar_t buffer[BUFSIZE]{};
+  va_list args{};
 
   if ( format.isEmpty() )
     return 0;
@@ -62,7 +62,7 @@ int FTermBuffer::writef (const FString format, ...)
 int FTermBuffer::write (const FString& s)
 {
   assert ( ! s.isNull() );
-  int len = 0;
+  int len{0};
   const wchar_t* p = s.wc_str();
 
   if ( p )
@@ -88,8 +88,7 @@ int FTermBuffer::write (const FString& s)
 //----------------------------------------------------------------------
 int FTermBuffer::write (wchar_t c)
 {
-  charData nc;  // next character
-  nc = FVTerm::getAttribute();
+  charData nc = FVTerm::getAttribute();  // next character
   nc.code = c;
   nc.attr.bit.no_changes = false;
   nc.attr.bit.printed = false;
diff --git a/src/ftermcap.cpp b/src/ftermcap.cpp
index 33822f54..f2ea3cd1 100644
--- a/src/ftermcap.cpp
+++ b/src/ftermcap.cpp
@@ -36,19 +36,19 @@ namespace finalcut
 {
 
 // static class attributes
-bool             FTermcap::background_color_erase   = false;
-bool             FTermcap::can_change_color_palette = false;
-bool             FTermcap::automatic_left_margin    = false;
-bool             FTermcap::automatic_right_margin   = false;
-bool             FTermcap::eat_nl_glitch            = false;
-bool             FTermcap::ansi_default_color       = false;
-bool             FTermcap::osc_support              = false;
-bool             FTermcap::no_utf8_acs_chars        = false;
-int              FTermcap::max_color                = 1;
-int              FTermcap::tabstop                  = 8;
-int              FTermcap::attr_without_color       = 0;
-FTermData*       FTermcap::fterm_data               = nullptr;
-FTermDetection*  FTermcap::term_detection           = nullptr;
+bool             FTermcap::background_color_erase  {false};
+bool             FTermcap::can_change_color_palette{false};
+bool             FTermcap::automatic_left_margin   {false};
+bool             FTermcap::automatic_right_margin  {false};
+bool             FTermcap::eat_nl_glitch           {false};
+bool             FTermcap::ansi_default_color      {false};
+bool             FTermcap::osc_support             {false};
+bool             FTermcap::no_utf8_acs_chars       {false};
+int              FTermcap::max_color               {1};
+int              FTermcap::tabstop                 {8};
+int              FTermcap::attr_without_color      {0};
+FTermData*       FTermcap::fterm_data              {nullptr};
+FTermDetection*  FTermcap::term_detection          {nullptr};
 
 
 //----------------------------------------------------------------------
@@ -77,11 +77,11 @@ void FTermcap::init()
 //----------------------------------------------------------------------
 void FTermcap::termcap()
 {
-  std::vector<std::string> terminals;
+  std::vector<std::string> terminals{};
   static constexpr int success = 1;
   static constexpr int uninitialized = -2;
-  static char term_buffer[2048];
-  static char string_buf[2048];
+  static char term_buffer[2048]{};
+  static char string_buf[2048]{};
   char* buffer = string_buf;
   int status = uninitialized;
   bool color256 = term_detection->canDisplay256Colors();
@@ -221,7 +221,7 @@ void FTermcap::termcapStrings (char*& buffer)
   // Get termcap strings
 
   // Read termcap output strings
-  for (std::size_t i = 0; strings[i].tname[0] != 0; i++)
+  for (std::size_t i{0}; strings[i].tname[0] != 0; i++)
     strings[i].string = tgetstr(strings[i].tname, &buffer);
 }
 
@@ -230,7 +230,7 @@ void FTermcap::termcapKeys (char*& buffer)
 {
   // Read termcap key strings
 
-  for (std::size_t i = 0; fc::Fkey[i].tname[0] != 0; i++)
+  for (std::size_t i{0}; fc::Fkey[i].tname[0] != 0; i++)
   {
     fc::Fkey[i].string = tgetstr(fc::Fkey[i].tname, &buffer);
 
@@ -290,7 +290,7 @@ void FTermcap::termcapKeysVt100 (char*& buffer)
     || ( TCAP(fc::t_cursor_up)
       && (std::strcmp(TCAP(fc::t_cursor_up), CSI "A") == 0) ) )
   {
-    for (std::size_t i = 0; fc::Fkey[i].tname[0] != 0; i++)
+    for (std::size_t i{0}; fc::Fkey[i].tname[0] != 0; i++)
     {
       if ( std::strncmp(fc::Fkey[i].tname, "kux", 3) == 0 )
         fc::Fkey[i].string = C_STR(CSI "A");  // Key up
diff --git a/src/ftermcapquirks.cpp b/src/ftermcapquirks.cpp
index a125b5b4..15cc0b5a 100644
--- a/src/ftermcapquirks.cpp
+++ b/src/ftermcapquirks.cpp
@@ -34,8 +34,8 @@ namespace finalcut
 {
 
 // static class attributes
-FTermData*       FTermcapQuirks::fterm_data     = nullptr;
-FTermDetection*  FTermcapQuirks::term_detection = nullptr;
+FTermData*       FTermcapQuirks::fterm_data     {nullptr};
+FTermDetection*  FTermcapQuirks::term_detection {nullptr};
 
 
 //----------------------------------------------------------------------
@@ -402,7 +402,7 @@ void FTermcapQuirks::sunConsole()
       C_STR(CSI "%p1%dD");
 
   // Sun Microsystems workstation console keys
-  for (std::size_t i = 0; fc::Fkey[i].tname[0] != 0; i++)
+  for (std::size_t i{0}; fc::Fkey[i].tname[0] != 0; i++)
   {
     if ( std::strncmp(fc::Fkey[i].tname, "K2", 2) == 0 )
       fc::Fkey[i].string = C_STR(CSI "218z");  // center of keypad
diff --git a/src/ftermdebugdata.cpp b/src/ftermdebugdata.cpp
index 9183c26b..0ae1fd6e 100644
--- a/src/ftermdebugdata.cpp
+++ b/src/ftermdebugdata.cpp
@@ -31,8 +31,8 @@ namespace finalcut
 
 #if DEBUG
 // static class attributes
-FTermData*      FTermDebugData::data           = nullptr;
-FTermDetection* FTermDebugData::term_detection = nullptr;
+FTermData*      FTermDebugData::data           {nullptr};
+FTermDetection* FTermDebugData::term_detection {nullptr};
 
 //----------------------------------------------------------------------
 // class FClassName
diff --git a/src/ftermdetection.cpp b/src/ftermdetection.cpp
index b617356f..8b8d9d8b 100644
--- a/src/ftermdetection.cpp
+++ b/src/ftermdetection.cpp
@@ -46,25 +46,24 @@ namespace finalcut
 {
 
 // static class attributes
-FTermDetection::terminalType FTermDetection::terminal_type = \
-    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
-FTermDetection::colorEnv     FTermDetection::color_env;
-FTermDetection::secondaryDA  FTermDetection::secondary_da;
-FTermData*     FTermDetection::fterm_data = nullptr;
-FSystem*       FTermDetection::fsystem = nullptr;
-char           FTermDetection::termtype[256] = { };
-char           FTermDetection::ttytypename[256] = { };
-bool           FTermDetection::decscusr_support;
-bool           FTermDetection::terminal_detection;
-bool           FTermDetection::color256;
-const FString* FTermDetection::answer_back = nullptr;
-const FString* FTermDetection::sec_da      = nullptr;
-int            FTermDetection::gnome_terminal_id;
+FTermDetection::terminalType FTermDetection::terminal_type{};
+FTermDetection::colorEnv     FTermDetection::color_env{};
+FTermDetection::secondaryDA  FTermDetection::secondary_da{};
+FTermData*     FTermDetection::fterm_data{nullptr};
+FSystem*       FTermDetection::fsystem{nullptr};
+char           FTermDetection::termtype[256]{};
+char           FTermDetection::ttytypename[256]{};
+bool           FTermDetection::decscusr_support{};
+bool           FTermDetection::terminal_detection{};
+bool           FTermDetection::color256{};
+const FString* FTermDetection::answer_back{nullptr};
+const FString* FTermDetection::sec_da{nullptr};
+int            FTermDetection::gnome_terminal_id{};
 
 #if DEBUG
-  char FTermDetection::termtype_256color[256]   = { };
-  char FTermDetection::termtype_Answerback[256] = { };
-  char FTermDetection::termtype_SecDA[256]      = { };
+  char FTermDetection::termtype_256color[256]{};
+  char FTermDetection::termtype_Answerback[256]{};
+  char FTermDetection::termtype_SecDA[256]{};
 #endif  // DEBUG
 
 
@@ -87,10 +86,6 @@ FTermDetection::FTermDetection()
   //                      a.b.c  = a * 100 +  b * 100 + c
   gnome_terminal_id = 0;
 
-  // Initialize the structs
-  color_env.setDefault();
-  secondary_da.setDefault();
-
   // Set default ttytype file
   std::strncpy (ttytypename, C_STR("/etc/ttytype"), sizeof(ttytypename));
   ttytypename[sizeof(ttytypename) - 1] = '\0';
@@ -208,20 +203,17 @@ bool FTermDetection::getTTYtype()
   else
     term_basename++;
 
-  std::FILE *fp;
+  std::FILE* fp{};
+  char  str[BUFSIZ]{};
 
   if ( fsystem && (fp = fsystem->fopen(ttytypename, "r")) != 0 )
   {
-    char* p;
-    char  str[BUFSIZ];
-
     // Read and parse the file
     while ( fgets(str, sizeof(str) - 1, fp) != 0 )
     {
-      char* name;
-      char* type;
-      type = name = nullptr;  // nullptr == not found
-      p = str;
+      const char* type{nullptr};  // nullptr == not found
+      const char* name{nullptr};
+      char* p = str;
 
       while ( *p )
       {
@@ -271,7 +263,7 @@ bool FTermDetection::getTTYSFileEntry()
 
   if ( ttys_entryt )
   {
-    char* type = ttys_entryt->ty_type;
+    const char* type = ttys_entryt->ty_type;
 
     if ( type != 0 )
     {
@@ -328,7 +320,7 @@ void FTermDetection::termtypeAnalysis()
   if ( std::strncmp(termtype, "screen", 6) == 0 )
   {
     terminal_type.screen = true;
-    char* tmux = std::getenv("TMUX");
+    const char* tmux = std::getenv("TMUX");
 
     if ( tmux && std::strlen(tmux) != 0 )
       terminal_type.tmux = true;
@@ -349,7 +341,7 @@ void FTermDetection::detectTerminal()
 {
   // Terminal detection
 
-  char* new_termtype = nullptr;
+  char* new_termtype{nullptr};
 
   if ( terminal_detection )
   {
@@ -397,7 +389,7 @@ void FTermDetection::detectTerminal()
 //----------------------------------------------------------------------
 char* FTermDetection::init_256colorTerminal()
 {
-  char* new_termtype = nullptr;
+  char* new_termtype{nullptr};
 
   if ( get256colorEnvString() )
     color256 = true;
@@ -460,7 +452,7 @@ bool FTermDetection::get256colorEnvString()
 //----------------------------------------------------------------------
 char* FTermDetection::termtype_256color_quirks()
 {
-  char* new_termtype = nullptr;
+  char* new_termtype{nullptr};
 
   if ( ! color256 )
     return new_termtype;
@@ -549,13 +541,12 @@ char* FTermDetection::determineMaxColor (char current_termtype[])
 //----------------------------------------------------------------------
 const FString FTermDetection::getXTermColorName (int color)
 {
-  FString color_str("");
-
-  fd_set ifds;
-  struct timeval tv;
+  FString color_str{""};
+  fd_set ifds{};
+  struct timeval tv{};
   int stdin_no = FTermios::getStdIn();
 
-  char temp[512] = { };
+  char temp[512]{};
   std::fprintf (stdout, OSC "4;%d;?" BEL, color);  // get color
   std::fflush(stdout);
 
@@ -632,11 +623,10 @@ char* FTermDetection::parseAnswerbackMsg (char current_termtype[])
 //----------------------------------------------------------------------
 const FString FTermDetection::getAnswerbackMsg()
 {
-  FString answerback = "";
-
-  fd_set ifds;
-  struct timeval tv;
-  char temp[10] = { };
+  FString answerback{""};
+  fd_set ifds{};
+  struct timeval tv{};
+  char temp[10]{};
   int stdin_no = FTermios::getStdIn();
 
   std::putchar (ENQ[0]);  // Send enquiry character
@@ -677,7 +667,7 @@ char* FTermDetection::parseSecDA (char current_termtype[])
     return current_termtype;
 
   // remove the first 3 bytes ("\033[>")
-  FString temp = sec_da->right(sec_da->getLength() - 3);
+  FString temp(sec_da->right(sec_da->getLength() - 3));
   // remove the last byte ("c")
   temp.remove(temp.getLength() - 1, 1);
   // split into components
@@ -736,15 +726,15 @@ int FTermDetection::str2int (const FString& s)
 //----------------------------------------------------------------------
 const FString FTermDetection::getSecDA()
 {
-  FString sec_da_str = "";
+  FString sec_da_str{""};
 
-  int a = 0
-    , b = 0
-    , c = 0
-    , stdin_no = FTermios::getStdIn()
-    , stdout_no = FTermios::getStdOut();
-  fd_set ifds;
-  struct timeval tv;
+  int a{0}
+    , b{0}
+    , c{0}
+    , stdin_no{FTermios::getStdIn()}
+    , stdout_no{FTermios::getStdOut()};
+  fd_set ifds{};
+  struct timeval tv{};
 
   // Get the secondary device attributes
   ssize_t ret = write(stdout_no, SECDA, std::strlen(SECDA));
@@ -904,9 +894,8 @@ inline char* FTermDetection::secDA_Analysis_32 (char[])
 {
   // Terminal ID 32 - Tera Term
 
-  char* new_termtype;
   terminal_type.tera_term = true;
-  new_termtype = C_STR("teraterm");
+  char* new_termtype = C_STR("teraterm");
   return new_termtype;
 }
 
@@ -925,9 +914,8 @@ inline char* FTermDetection::secDA_Analysis_67 (char[])
 {
   // Terminal ID 67 - cygwin
 
-  char* new_termtype;
   terminal_type.cygwin = true;
-  new_termtype = C_STR("cygwin");
+  char* new_termtype = C_STR("cygwin");
   std::fflush(stdout);
   return new_termtype;
 }
@@ -937,10 +925,9 @@ inline char* FTermDetection::secDA_Analysis_77 (char[])
 {
   // Terminal ID 77 - mintty
 
-  char* new_termtype;
   terminal_type.mintty = true;
   decscusr_support = true;
-  new_termtype = C_STR("xterm-256color");
+  char* new_termtype = C_STR("xterm-256color");
   std::fflush(stdout);
   return new_termtype;
 }
diff --git a/src/ftermfreebsd.cpp b/src/ftermfreebsd.cpp
index baa415c2..3143ea7b 100644
--- a/src/ftermfreebsd.cpp
+++ b/src/ftermfreebsd.cpp
@@ -32,12 +32,12 @@ namespace finalcut
 
 // static class attributes
 #if defined(__FreeBSD__) || defined(__DragonFly__) || defined(UNIT_TEST)
-  uInt                      FTermFreeBSD::bsd_alt_keymap = 0;
-  FTermFreeBSD::CursorStyle FTermFreeBSD::cursor_style = fc::normal_cursor;
-  bool                      FTermFreeBSD::change_cursorstyle = true;
-  bool                      FTermFreeBSD::meta_sends_escape = true;
-  FSystem*                  FTermFreeBSD::fsystem = nullptr;
-  FTermData*                FTermFreeBSD::fterm_data = nullptr;
+  uInt                      FTermFreeBSD::bsd_alt_keymap{0};
+  FTermFreeBSD::CursorStyle FTermFreeBSD::cursor_style{fc::normal_cursor};
+  bool                      FTermFreeBSD::change_cursorstyle{true};
+  bool                      FTermFreeBSD::meta_sends_escape{true};
+  FSystem*                  FTermFreeBSD::fsystem{nullptr};
+  FTermData*                FTermFreeBSD::fterm_data{nullptr};
 #endif
 
 
@@ -156,7 +156,7 @@ void FTermFreeBSD::initCharMap()
   if ( ! isFreeBSDConsole() )
     return;
 
-  for (std::size_t i = 0; i <= fc::lastCharItem; i++)
+  for (std::size_t i{0}; i <= fc::lastCharItem; i++)
     if ( fc::character[i][fc::PC] < 0x1c )
       fc::character[i][fc::PC] = fc::character[i][fc::ASCII];
 }
@@ -183,7 +183,7 @@ bool FTermFreeBSD::saveFreeBSDAltKey()
   // Saving the current mapping for the alt key
 
   static constexpr int left_alt = 0x38;
-  int ret = -1;
+  int ret{-1};
   keymap_t keymap{};
 
   if ( fsystem )
@@ -203,7 +203,7 @@ bool FTermFreeBSD::setFreeBSDAltKey (uInt key)
   // Remapping the alt key
 
   static constexpr int left_alt = 0x38;
-  int ret = -1;
+  int ret{-1};
   keymap_t keymap{};
 
   if ( fsystem )
diff --git a/src/ftermios.cpp b/src/ftermios.cpp
index d11f0633..011bc157 100644
--- a/src/ftermios.cpp
+++ b/src/ftermios.cpp
@@ -71,7 +71,7 @@ void FTermios::init()
 //----------------------------------------------------------------------
 termios FTermios::getTTY()
 {
-  struct termios t;
+  struct termios t{};
   tcgetattr (stdin_no, &t);
   return t;
 }
@@ -100,7 +100,7 @@ void FTermios::restoreTTYsettings()
 void FTermios::setHardwareEcho()
 {
   // Info under: man 3 termios
-  struct termios t;
+  struct termios t{};
   tcgetattr (stdin_no, &t);
 
   // local mode
@@ -120,7 +120,7 @@ void FTermios::setHardwareEcho()
 void FTermios::unsetHardwareEcho()
 {
   // Info under: man 3 termios
-  struct termios t;
+  struct termios t{};
   tcgetattr (stdin_no, &t);
 
   // local mode
@@ -139,7 +139,7 @@ void FTermios::unsetHardwareEcho()
 //----------------------------------------------------------------------
 void FTermios::setCaptureSendCharacters()
 {
-  struct termios t;
+  struct termios t{};
   tcgetattr (stdin_no, &t);
   t.c_lflag &= uInt(~(ICANON | ECHO));
   t.c_cc[VTIME] = 1;  // Timeout in deciseconds
@@ -150,7 +150,7 @@ void FTermios::setCaptureSendCharacters()
 //----------------------------------------------------------------------
 void FTermios::unsetCaptureSendCharacters()
 {
-  struct termios t;
+  struct termios t{};
   tcgetattr (stdin_no, &t);
   t.c_lflag |= uInt(ICANON | ECHO);
   t.c_cc[VTIME] = 0;  // Timeout in deciseconds
@@ -166,7 +166,7 @@ bool FTermios::setRawMode (bool enable)
     return raw_mode;
 
   // Info under: man 3 termios
-  struct termios t;
+  struct termios t{};
   tcgetattr (stdin_no, &t);
 
   if ( enable )
diff --git a/src/ftermlinux.cpp b/src/ftermlinux.cpp
index 2f4208db..3f67e1b4 100644
--- a/src/ftermlinux.cpp
+++ b/src/ftermlinux.cpp
@@ -43,21 +43,21 @@ namespace finalcut
 
 // static class attributes
 #if defined(__linux__)
-  FTermLinux::modifier_key  FTermLinux::mod_key;
-  console_font_op           FTermLinux::screen_font;
-  unimapdesc                FTermLinux::screen_unicode_map;
+  FTermLinux::modifier_key  FTermLinux::mod_key{};
+  console_font_op           FTermLinux::screen_font{};
+  unimapdesc                FTermLinux::screen_unicode_map{};
 
-  bool   FTermLinux::new_font;
-  bool   FTermLinux::vga_font;
-  bool   FTermLinux::has_saved_palette = false;
+  bool   FTermLinux::new_font{false};
+  bool   FTermLinux::vga_font{false};
+  bool   FTermLinux::has_saved_palette{false};
 
-  FTermData*                  FTermLinux::fterm_data = nullptr;
-  FSystem*                    FTermLinux::fsystem = nullptr;
-  FTermDetection*             FTermLinux::term_detection = nullptr;
-  fc::linuxConsoleCursorStyle FTermLinux::linux_console_cursor_style;
+  FTermData*                  FTermLinux::fterm_data{nullptr};
+  FSystem*                    FTermLinux::fsystem{nullptr};
+  FTermDetection*             FTermLinux::term_detection{nullptr};
+  fc::linuxConsoleCursorStyle FTermLinux::linux_console_cursor_style{};
   FTermLinux::ColorMap        FTermLinux::saved_color_map{};
   FTermLinux::ColorMap        FTermLinux::cmap{};
-  int                         FTermLinux::framebuffer_bpp = -1;
+  int                         FTermLinux::framebuffer_bpp{-1};
 #endif  // defined(__linux__)
 
 
@@ -93,7 +93,7 @@ char* FTermLinux::getCursorStyleString()
 {
   // Gets the current cursor style string of the Linux console
 
-  static char buf[16] = { };
+  static char buf[16]{};
   std::fill (std::begin(buf), std::end(buf), '\0');
   std::sprintf (buf, CSI "?%dc", getCursorStyle());
   return buf;
@@ -157,7 +157,7 @@ bool FTermLinux::isLinuxConsole()
   if ( ! fsystem )
     fsystem = FTerm::getFSystem();
 
-  char arg = 0;
+  char arg{0};
   int fd_tty = FTerm::getTTYFileDescriptor();
 
   // Get keyboard type an compare
@@ -232,7 +232,7 @@ void FTermLinux::initCharMap()
 
   if ( screen_unicode_map.entry_ct > 0 && screen_unicode_map.entries )
   {
-    for (std::size_t i = 0; i <= fc::lastCharItem; i++ )
+    for (std::size_t i{0}; i <= fc::lastCharItem; i++ )
     {
       auto ucs = wchar_t(fc::character[i][fc::UTF8]);
       sInt16 fontpos = getFontPos(ucs);
@@ -507,10 +507,10 @@ FKey FTermLinux::modifierKeyCorrection (const FKey& key_id)
 //----------------------------------------------------------------------
 int FTermLinux::getFramebuffer_bpp()
 {
-  int fd = -1;
+  int fd{-1};
   const char* fb = C_STR("/dev/fb/0");
-  struct fb_var_screeninfo fb_var;
-  struct fb_fix_screeninfo fb_fix;
+  struct fb_var_screeninfo fb_var{};
+  struct fb_fix_screeninfo fb_fix{};
 
   if ( ! fsystem )
     fsystem = FTerm::getFSystem();
@@ -543,9 +543,9 @@ int FTermLinux::getFramebuffer_bpp()
 //----------------------------------------------------------------------
 bool FTermLinux::getScreenFont()
 {
-  struct console_font_op font;
+  struct console_font_op font{};
   int fd_tty = FTerm::getTTYFileDescriptor();
-  int ret = -1;
+  int ret{-1};
 
   if ( fd_tty < 0 )
     return false;
@@ -593,8 +593,8 @@ bool FTermLinux::getScreenFont()
 //----------------------------------------------------------------------
 bool FTermLinux::getUnicodeMap()
 {
-  int ret = -1;
   int fd_tty = FTerm::getTTYFileDescriptor();
+  int ret{-1};
 
   if ( fd_tty < 0 )
     return false;
@@ -639,7 +639,7 @@ FTermLinux::modifier_key& FTermLinux::getModifierKey()
 {
   // Get Linux console shift state
 
-  char subcode = 6;  // Shift state command + return value
+  char subcode{6};  // Shift state command + return value
 
   // Fill bit field with 0
   std::memset (&mod_key, 0x00, sizeof(mod_key));
@@ -668,9 +668,9 @@ int FTermLinux::setScreenFont ( uChar fontdata[], uInt count
                               , uInt fontwidth, uInt fontheight
                               , bool direct)
 {
-  struct console_font_op font;
+  struct console_font_op font{};
   int fd_tty = FTerm::getTTYFileDescriptor();
-  int ret = -1;
+  int ret{-1};
 
   if ( fd_tty < 0 )
     return -1;
@@ -701,7 +701,7 @@ int FTermLinux::setScreenFont ( uChar fontdata[], uInt count
       return -1;
     }
 
-    for (std::size_t i = 0; i < count; i++)
+    for (std::size_t i{0}; i < count; i++)
       std::memcpy ( const_cast<uChar*>(font.data + bytes_per_line * 32 * i)
                   , &fontdata[i * font.height]
                   , font.height);
@@ -733,7 +733,7 @@ int FTermLinux::setUnicodeMap (struct unimapdesc* unimap)
 {
   struct unimapinit advice;
   int fd_tty = FTerm::getTTYFileDescriptor();
-  int ret = -1;
+  int ret{-1};
 
   if ( fd_tty < 0 )
     return -1;
@@ -798,7 +798,6 @@ uChar FTermLinux::readAttributeController (uChar index)
   if ( ! fsystem )
     fsystem = FTerm::getFSystem();
 
-  uChar res;
   // Attribute controller (write port)
   static constexpr uInt16 attrib_cntlr_write = 0x3c0;
   // Attribute controller (read port)
@@ -807,7 +806,7 @@ uChar FTermLinux::readAttributeController (uChar index)
 
   fsystem->inPortByte (input_status_1);  // switch to index mode
   fsystem->outPortByte (index & 0x1f, attrib_cntlr_write);  // selects address register
-  res = fsystem->inPortByte (attrib_cntlr_read);  // read from data register
+  uChar res = fsystem->inPortByte (attrib_cntlr_read);  // read from data register
 
   // Disable access to the palette and unblank the display
   fsystem->inPortByte (input_status_1);  // switch to index mode
@@ -916,7 +915,7 @@ void FTermLinux::setVGADefaultPalette()
     {0x55, 0xff, 0xff}, {0xff, 0xff, 0xff}
   };
 
-  for (std::size_t index = 0; index < 16; index++)
+  for (std::size_t index{0}; index < 16; index++)
   {
     cmap.color[index].red   = defaultColor[index].red;
     cmap.color[index].green = defaultColor[index].green;
@@ -1288,7 +1287,7 @@ sInt16 FTermLinux::getFontPos (wchar_t ucs)
 {
   constexpr sInt16 NOT_FOUND = -1;
 
-  for (std::size_t n = 0; n < screen_unicode_map.entry_ct; n++)
+  for (std::size_t n{0}; n < screen_unicode_map.entry_ct; n++)
   {
     if ( screen_unicode_map.entries[n].unicode == ucs )
       return sInt16(screen_unicode_map.entries[n].fontpos);
diff --git a/src/ftermopenbsd.cpp b/src/ftermopenbsd.cpp
index d5bbe2ba..986d943f 100644
--- a/src/ftermopenbsd.cpp
+++ b/src/ftermopenbsd.cpp
@@ -29,9 +29,9 @@ namespace finalcut
 
 // static class attributes
 #if defined(__NetBSD__) || defined(__OpenBSD__) || defined(UNIT_TEST)
-  kbd_t    FTermOpenBSD::bsd_keyboard_encoding = 0;
-  bool     FTermOpenBSD::meta_sends_escape = true;
-  FSystem* FTermOpenBSD::fsystem = nullptr;
+  kbd_t    FTermOpenBSD::bsd_keyboard_encoding{0};
+  bool     FTermOpenBSD::meta_sends_escape{true};
+  FSystem* FTermOpenBSD::fsystem{nullptr};
 #endif
 
 
@@ -124,7 +124,7 @@ bool FTermOpenBSD::resetBeep()
     && fsystem->ioctl(0, WSKBDIO_GETDEFAULTBELL, &default_bell) < 0 )
     return false;
 
-  default_bell.which  = WSKBD_BELL_DOALL;
+  default_bell.which = WSKBD_BELL_DOALL;
 
   // Sets the bell settings
   if ( fsystem
@@ -140,7 +140,7 @@ bool FTermOpenBSD::resetBeep()
 bool FTermOpenBSD::saveBSDConsoleEncoding()
 {
   static kbd_t k_encoding{};
-  int ret = -1;
+  int ret{-1};
 
   if ( fsystem )
     ret = fsystem->ioctl (0, WSKBDIO_GETENCODING, &k_encoding);
diff --git a/src/ftermxterminal.cpp b/src/ftermxterminal.cpp
index 84d2d678..3d9ff2c4 100644
--- a/src/ftermxterminal.cpp
+++ b/src/ftermxterminal.cpp
@@ -38,22 +38,22 @@ namespace finalcut
 {
 
 // static class attributes
-bool                 FTermXTerminal::mouse_support;
-bool                 FTermXTerminal::meta_sends_esc;
-bool                 FTermXTerminal::xterm_default_colors;
-std::size_t          FTermXTerminal::term_width = 80;
-std::size_t          FTermXTerminal::term_height = 24;
-const FString*       FTermXTerminal::xterm_font = nullptr;
-const FString*       FTermXTerminal::xterm_title = nullptr;
-const FString*       FTermXTerminal::foreground_color = nullptr;
-const FString*       FTermXTerminal::background_color = nullptr;
-const FString*       FTermXTerminal::cursor_color = nullptr;
-const FString*       FTermXTerminal::mouse_foreground_color = nullptr;
-const FString*       FTermXTerminal::mouse_background_color = nullptr;
-const FString*       FTermXTerminal::highlight_background_color = nullptr;
-FSystem*             FTermXTerminal::fsystem = nullptr;
-FTermDetection*      FTermXTerminal::term_detection = nullptr;
-fc::xtermCursorStyle FTermXTerminal::cursor_style = fc::unknown_cursor_style;
+bool                 FTermXTerminal::mouse_support{false};
+bool                 FTermXTerminal::meta_sends_esc{false};
+bool                 FTermXTerminal::xterm_default_colors{false};
+std::size_t          FTermXTerminal::term_width{80};
+std::size_t          FTermXTerminal::term_height{24};
+const FString*       FTermXTerminal::xterm_font{nullptr};
+const FString*       FTermXTerminal::xterm_title{nullptr};
+const FString*       FTermXTerminal::foreground_color{nullptr};
+const FString*       FTermXTerminal::background_color{nullptr};
+const FString*       FTermXTerminal::cursor_color{nullptr};
+const FString*       FTermXTerminal::mouse_foreground_color{nullptr};
+const FString*       FTermXTerminal::mouse_background_color{nullptr};
+const FString*       FTermXTerminal::highlight_background_color{nullptr};
+FSystem*             FTermXTerminal::fsystem{nullptr};
+FTermDetection*      FTermXTerminal::term_detection{nullptr};
+fc::xtermCursorStyle FTermXTerminal::cursor_style{fc::unknown_cursor_style};
 
 
 //----------------------------------------------------------------------
@@ -64,10 +64,6 @@ fc::xtermCursorStyle FTermXTerminal::cursor_style = fc::unknown_cursor_style;
 //----------------------------------------------------------------------
 FTermXTerminal::FTermXTerminal()
 {
-  // Preset to false
-  mouse_support        = \
-  meta_sends_esc       = \
-  xterm_default_colors = false;
   // Get FSystem object
   fsystem = FTerm::getFSystem();
 }
@@ -777,8 +773,8 @@ const FString* FTermXTerminal::captureXTermFont()
     || term_detection->isScreenTerm()
     || FTermcap::osc_support )
   {
-    fd_set ifds;
-    struct timeval tv;
+    fd_set ifds{};
+    struct timeval tv{};
     int stdin_no = FTermios::getStdIn();
 
     oscPrefix();
@@ -794,7 +790,7 @@ const FString* FTermXTerminal::captureXTermFont()
     // Read the terminal answer
     if ( select(stdin_no + 1, &ifds, 0, 0, &tv) > 0 )
     {
-      char temp[150] = { };
+      char temp[150]{};
 
       if ( std::scanf("\033]50;%148[^\n]s", temp) == 1 )
       {
@@ -829,8 +825,8 @@ const FString* FTermXTerminal::captureXTermTitle()
   if ( term_detection->isKdeTerminal() )
     return 0;
 
-  fd_set ifds;
-  struct timeval tv;
+  fd_set ifds{};
+  struct timeval tv{};
   int stdin_no = FTermios::getStdIn();
 
   FTerm::putstring (CSI "21t");  // get title
@@ -844,7 +840,7 @@ const FString* FTermXTerminal::captureXTermTitle()
   // read the terminal answer
   if ( select (stdin_no + 1, &ifds, 0, 0, &tv) > 0 )
   {
-    char temp[512] = { };
+    char temp[512]{};
 
     if ( std::scanf("\033]l%509[^\n]s", temp) == 1 )
     {
diff --git a/src/ftextview.cpp b/src/ftextview.cpp
index 9990f38a..b5e7545c 100644
--- a/src/ftextview.cpp
+++ b/src/ftextview.cpp
@@ -61,21 +61,19 @@ FTextView::~FTextView()  // destructor
 //----------------------------------------------------------------------
 const FString FTextView::getText() const
 {
-  std::size_t len, rows, idx;
-
   if ( data.empty() )
     return FString("");
 
-  len = 0;
-  rows = getRows();
+  std::size_t len{0};
+  std::size_t rows = getRows();
 
-  for (std::size_t i = 0 ; i < rows; i++)
+  for (std::size_t i{0} ; i < rows; i++)
     len += data[i].getLength() + 1;
 
   FString s(len + 1);
-  idx = 0;
+  std::size_t idx{0};
 
-  for (std::size_t i = 0 ; i < rows; i++)
+  for (std::size_t i{0}; i < rows; i++)
   {
     const wchar_t* p = data[i].wc_str();
 
@@ -223,7 +221,7 @@ void FTextView::insert (const FString& str, int pos)
   auto text_split = s.split("\r\n");
   auto num = text_split.size();
 
-  for (std::size_t i = 0; i < num; i++)
+  for (std::size_t i{0}; i < num; i++)
   {
     text_split[i] = text_split[i].removeBackspaces()
                                  .removeDel()
@@ -283,7 +281,6 @@ void FTextView::replaceRange (const FString& str, int from, int to)
 //----------------------------------------------------------------------
 void FTextView::clear()
 {
-  std::size_t size;
   data.clear();
   data.shrink_to_fit();
   xoffset = 0;
@@ -300,14 +297,14 @@ void FTextView::clear()
 
   // clear list from screen
   setColor();
-  size = getWidth() - 2;
+  std::size_t size = getWidth() - 2;
 
   if ( size == 0 )
     return;
 
   char* blank = createBlankArray(size + 1);
 
-  for (int y = 0; y < int(getTextHeight()); y++)
+  for (int y{0}; y < int(getTextHeight()); y++)
   {
     print() << FPoint(2, 2 - nf_offset + y) << blank;
   }
@@ -479,7 +476,7 @@ void FTextView::onMouseMove (FMouseEvent* ev)
 //----------------------------------------------------------------------
 void FTextView::onWheel (FWheelEvent* ev)
 {
-  int distance = 4;
+  int distance{4};
 
   switch ( ev->getWheel() )
   {
@@ -705,15 +702,15 @@ void FTextView::drawText()
   if ( isMonochron() )
     setReverse(true);
 
-  for (std::size_t y = 0; y < num; y++)
+  for (std::size_t y{0}; y < num; y++)
   {
-    std::size_t i;
-    FString line;
-    print() << FPoint(2, 2 - nf_offset + int(y));
-    line = data[y + std::size_t(yoffset)].mid ( std::size_t(1 + xoffset)
-                                              , getTextWidth() );
+    std::size_t i{};
+    std::size_t n = y + std::size_t(yoffset);
+    std::size_t x = std::size_t(1 + xoffset);
+    FString line(data[n].mid (x, getTextWidth()));
     const auto line_str = line.wc_str();
     const auto len = line.getLength();
+    print() << FPoint(2, 2 - nf_offset + int(y));
 
     for (i = 0; i < len; i++)
     {
@@ -749,8 +746,8 @@ void FTextView::processChanged()
 void FTextView::cb_VBarChange (FWidget*, FDataPtr)
 {
   FScrollbar::sType scrollType = vbar->getScrollType();
-  int distance = 1;
-  int wheel_distance = 4;
+  int distance{1};
+  int wheel_distance{4};
 
   if ( scrollType >= FScrollbar::scrollStepBackward
     && scrollType <= FScrollbar::scrollWheelDown )
@@ -805,8 +802,8 @@ void FTextView::cb_VBarChange (FWidget*, FDataPtr)
 void FTextView::cb_HBarChange (FWidget*, FDataPtr)
 {
   FScrollbar::sType scrollType = hbar->getScrollType();
-  int distance = 1;
-  int wheel_distance = 4;
+  int distance{1};
+  int wheel_distance{4};
 
   if ( scrollType >= FScrollbar::scrollStepBackward
     && scrollType <= FScrollbar::scrollWheelDown )
diff --git a/src/ftogglebutton.cpp b/src/ftogglebutton.cpp
index ecbcf5a3..6624b6b1 100644
--- a/src/ftogglebutton.cpp
+++ b/src/ftogglebutton.cpp
@@ -84,7 +84,7 @@ void FToggleButton::setGeometry ( const FPoint& pos, const FSize& s
 {
   // Set the toggle button geometry
 
-  FSize size = s;
+  FSize size(s);
   std::size_t hotkey_mark = ( getHotkey(text) ) ? 1 : 0;
   std::size_t min_width = button_width + text.getLength() - hotkey_mark;
 
@@ -190,7 +190,7 @@ bool FToggleButton::setChecked (bool enable)
 //----------------------------------------------------------------------
 void FToggleButton::setText (const FString& txt)
 {
-  text = txt;
+  text.setString(txt);
   std::size_t hotkey_mark = ( getHotkey(text) ) ? 1 : 0;
 
   setWidth(button_width + text.getLength() - hotkey_mark);
@@ -440,7 +440,7 @@ void FToggleButton::drawLabel()
     return;
   }
 
-  FString txt = text;
+  FString txt(text);
   wchar_t* src = const_cast<wchar_t*>(txt.wc_str());
   wchar_t* dest = const_cast<wchar_t*>(LabelText);
   auto hotkeypos = finalcut::getHotkeyPos(src, dest, length);
@@ -566,7 +566,7 @@ void FToggleButton::drawText ( wchar_t LabelText[]
   else
     setColor (wc.label_inactive_fg, wc.label_inactive_bg);
 
-  for (std::size_t z = 0; z < length; z++)
+  for (std::size_t z{0}; z < length; z++)
   {
     if ( (z == hotkeypos) && flags.active )
     {
diff --git a/src/ftooltip.cpp b/src/ftooltip.cpp
index ec2d078f..144a2934 100644
--- a/src/ftooltip.cpp
+++ b/src/ftooltip.cpp
@@ -55,7 +55,7 @@ FToolTip::~FToolTip()  // destructor
   if ( fapp->isQuit() )
     return;
 
-  FWindow* parent_win = nullptr;
+  FWindow* parent_win{nullptr};
 
   if ( auto parent = getParentWidget() )
     parent_win = getWindowWidget(parent);
@@ -71,7 +71,7 @@ FToolTip::~FToolTip()  // destructor
 //----------------------------------------------------------------------
 void FToolTip::setText (const FString& txt)
 {
-  text = txt;
+  text.setString(txt);
   calculateDimensions();
 }
 
@@ -86,7 +86,7 @@ void FToolTip::draw()
   clearArea();
   drawBorder();
 
-  for (std::size_t i = 0; i < text_num_lines; i++)
+  for (std::size_t i{0}; i < text_num_lines; i++)
   {
     print() << FPoint(3, 2 + int(i)) << text_components[i];
   }
@@ -134,8 +134,7 @@ void FToolTip::init()
 //----------------------------------------------------------------------
 void FToolTip::calculateDimensions()
 {
-  int x, y;
-  std::size_t w, h;
+  int x{}, y{};
   auto r = getRootWidget();
   max_line_width = 0;
   text_split = text.split("\n");
@@ -144,7 +143,7 @@ void FToolTip::calculateDimensions()
   if ( text_num_lines == 0 )
     return;
 
-  for (std::size_t i = 0; i < text_num_lines; i++)
+  for (std::size_t i{0}; i < text_num_lines; i++)
   {
     text_components = &text_split[0];
     std::size_t len = text_components[i].getLength();
@@ -153,8 +152,8 @@ void FToolTip::calculateDimensions()
       max_line_width = len;
   }
 
-  h = text_num_lines + 2;
-  w = max_line_width + 4;
+  std::size_t h = text_num_lines + 2;
+  std::size_t w = max_line_width + 4;
 
   if ( r )
   {
diff --git a/src/fvterm.cpp b/src/fvterm.cpp
index 032b479f..099b4b1a 100644
--- a/src/fvterm.cpp
+++ b/src/fvterm.cpp
@@ -45,27 +45,27 @@ namespace finalcut
 {
 
 // global FVTerm object
-static FVTerm* init_object = nullptr;
+static FVTerm* init_object{nullptr};
 
 // static class attributes
-bool                 FVTerm::terminal_update_complete;
-bool                 FVTerm::terminal_update_pending;
-bool                 FVTerm::force_terminal_update;
-bool                 FVTerm::stop_terminal_updates;
-int                  FVTerm::skipped_terminal_update = 0;
-uInt                 FVTerm::erase_char_length;
-uInt                 FVTerm::repeat_char_length;
-uInt                 FVTerm::clr_bol_length;
-uInt                 FVTerm::clr_eol_length;
-uInt                 FVTerm::cursor_address_length;
-std::queue<int>*     FVTerm::output_buffer = nullptr;
-FPoint*              FVTerm::term_pos      = nullptr;
-FSystem*             FVTerm::fsystem       = nullptr;
-FTerm*               FVTerm::fterm         = nullptr;
-FVTerm::term_area*   FVTerm::vterm         = nullptr;
-FVTerm::term_area*   FVTerm::vdesktop      = nullptr;
-FVTerm::term_area*   FVTerm::active_area   = nullptr;
-FKeyboard*           FVTerm::keyboard      = nullptr;
+bool                 FVTerm::terminal_update_complete{false};
+bool                 FVTerm::terminal_update_pending{false};
+bool                 FVTerm::force_terminal_update{false};
+bool                 FVTerm::stop_terminal_updates{false};
+int                  FVTerm::skipped_terminal_update{};
+uInt                 FVTerm::erase_char_length{};
+uInt                 FVTerm::repeat_char_length{};
+uInt                 FVTerm::clr_bol_length{};
+uInt                 FVTerm::clr_eol_length{};
+uInt                 FVTerm::cursor_address_length{};
+std::queue<int>*     FVTerm::output_buffer{nullptr};
+FPoint*              FVTerm::term_pos{nullptr};
+FSystem*             FVTerm::fsystem{nullptr};
+FTerm*               FVTerm::fterm{nullptr};
+FVTerm::term_area*   FVTerm::vterm{nullptr};
+FVTerm::term_area*   FVTerm::vdesktop{nullptr};
+FVTerm::term_area*   FVTerm::active_area{nullptr};
+FKeyboard*           FVTerm::keyboard{nullptr};
 charData             FVTerm::term_attribute{};
 charData             FVTerm::next_attribute{};
 charData             FVTerm::s_ch{};
@@ -80,8 +80,6 @@ charData             FVTerm::i_ch{};
 //----------------------------------------------------------------------
 FVTerm::FVTerm (bool initialize, bool disable_alt_screen)
 {
-  terminal_update_complete = false;
-
   if ( initialize )
     init (disable_alt_screen);
 }
@@ -119,13 +117,12 @@ FPoint FVTerm::getPrintCursor()
 void FVTerm::setTermXY (int x, int y)
 {
   // Sets the hardware cursor to the given (x,y) position
-  int term_x, term_y, term_width, term_height;
 
   if ( term_pos->getX() == x && term_pos->getY() == y )
     return;
 
-  term_width = int(getColumnNumber());
-  term_height = int(getLineNumber());
+  int term_width = int(getColumnNumber());
+  int term_height = int(getLineNumber());
 
   if ( x >= term_width && term_width > 0 )
   {
@@ -139,8 +136,8 @@ void FVTerm::setTermXY (int x, int y)
   if ( y >= term_height )
     y = term_height - 1;
 
-  term_x = term_pos->getX();
-  term_y = term_pos->getY();
+  int term_x = term_pos->getX();
+  int term_y = term_pos->getY();
 
   const char* move_str = FTerm::moveCursorString (term_x, term_y, x, y);
 
@@ -214,7 +211,7 @@ void FVTerm::resizeVTerm (const FSize& size)
 //----------------------------------------------------------------------
 void FVTerm::putVTerm()
 {
-  for (int i = 0; i < vterm->height; i++)
+  for (int i{0}; i < vterm->height; i++)
   {
     vterm->changes[i].xmin = 0;
     vterm->changes[i].xmax = uInt(vterm->width - 1);
@@ -282,7 +279,7 @@ void FVTerm::updateTerminal()
   if ( ! vterm->has_changes )
     return;
 
-  for (uInt y = 0; y < uInt(vterm->height); y++)
+  for (uInt y{0}; y < uInt(vterm->height); y++)
     updateTerminalLine (y);
 
   vterm->has_changes = false;
@@ -300,7 +297,7 @@ void FVTerm::addPreprocessingHandler ( FVTerm* instance
 
   if ( print_area )
   {
-    vterm_preprocessing obj = { instance, handler };
+    vterm_preprocessing obj{ instance, handler };
     delPreprocessingHandler (instance);
     print_area->preprocessing_call.push_back(obj);
   }
@@ -330,8 +327,8 @@ void FVTerm::delPreprocessingHandler (FVTerm* instance)
 int FVTerm::printf (const FString format, ...)
 {
   static constexpr int BUFSIZE = 4096;
-  wchar_t buffer[BUFSIZE];
-  va_list args;
+  wchar_t buffer[BUFSIZE]{};
+  va_list args{};
 
   if ( format.isEmpty() )
     return 0;
@@ -364,7 +361,7 @@ int FVTerm::print (term_area* area, const FString& s)
   if ( s.isNull() || ! area )
     return -1;
 
-  std::vector<charData> term_string;
+  std::vector<charData> term_string{};
   const wchar_t* p = s.wc_str();
 
   if ( p )
@@ -426,7 +423,7 @@ int FVTerm::print (const std::vector<charData>& term_string)
 //----------------------------------------------------------------------
 int FVTerm::print (term_area* area, const std::vector<charData>& term_string)
 {
-  int len = 0;
+  int len{0};
   uInt tabstop = uInt(getTabstop());
 
   if ( ! area )
@@ -437,7 +434,7 @@ int FVTerm::print (term_area* area, const std::vector<charData>& term_string)
 
   for (auto&& ch : term_string)
   {
-    bool printable_character = false;
+    bool printable_character{false};
 
     switch ( ch.code )
     {
@@ -495,7 +492,7 @@ int FVTerm::print (wchar_t c)
 //----------------------------------------------------------------------
 int FVTerm::print (term_area* area, wchar_t c)
 {
-  charData nc;  // next character
+  charData nc{};  // next character
 
   if ( ! area )
     return -1;
@@ -525,17 +522,16 @@ int FVTerm::print (charData& term_char)
 int FVTerm::print (term_area* area, charData& term_char)
 {
   charData& nc = term_char;  // next character
-  int width, height, rsh, bsh, ax, ay;
 
   if ( ! area )
     return -1;
 
-  width  = area->width;
-  height = area->height;
-  rsh    = area->right_shadow;
-  bsh    = area->bottom_shadow;
-  ax     = area->cursor_x - 1;
-  ay     = area->cursor_y - 1;
+  int width  = area->width;
+  int height = area->height;
+  int rsh    = area->right_shadow;
+  int bsh    = area->bottom_shadow;
+  int ax     = area->cursor_x - 1;
+  int ay     = area->cursor_y - 1;
 
   if ( area->cursor_x > 0
     && area->cursor_y > 0
@@ -661,19 +657,17 @@ void FVTerm::resizeArea ( const FRect& box
   // Resize the virtual window to a new size.
 
   int offset_left = box.getX();
-  int offset_top = box.getY();
-  int width = int(box.getWidth());
-  int height = int(box.getHeight());
-  int rsw = int(shadow.getWidth());
-  int bsh = int(shadow.getHeight());
+  int offset_top  = box.getY();
+  int width       = int(box.getWidth());
+  int height      = int(box.getHeight());
+  int rsw         = int(shadow.getWidth());
+  int bsh         = int(shadow.getHeight());
 
   assert ( offset_top >= 0 );
   assert ( width > 0 && width + rsw > 0 );
   assert ( height > 0 && height + bsh > 0 );
   assert ( rsw >= 0 );
   assert ( bsh >= 0 );
-  std::size_t area_size;
-  bool realloc_success = false;
 
   if ( ! area )
     return;
@@ -692,7 +686,8 @@ void FVTerm::resizeArea ( const FRect& box
     return;
   }
 
-  area_size = std::size_t((width + rsw) * (height + bsh));
+  bool realloc_success{false};
+  std::size_t area_size = std::size_t((width + rsw) * (height + bsh));
 
   if ( area->height + area->bottom_shadow != height + bsh )
   {
@@ -847,11 +842,11 @@ void FVTerm::restoreVTerm (const FRect& box)
   if ( h < 0 )
     return;
 
-  for (int ty = 0; ty < h; ty++)
+  for (int ty{0}; ty < h; ty++)
   {
     int ypos = y + ty;
 
-    for (int tx = 0; tx < w; tx++)
+    for (int tx{0}; tx < w; tx++)
     {
       int xpos = x + tx;
       auto tc = &vterm->text[ypos * vterm->width + xpos];  // terminal character
@@ -943,7 +938,7 @@ void FVTerm::updateOverlappedColor ( term_area* area
   // Terminal character
   auto tc = &vterm->text[ty * vterm->width + tx];
   // New character
-  charData nc;
+  charData nc{};
   std::memcpy (&nc, ac, sizeof(nc));
   // Overlapped character
   auto oc = getOverlappedCharacter (terminal_pos + FPoint(1, 1), area->widget);
@@ -1032,7 +1027,7 @@ void FVTerm::updateInheritBackground ( term_area* area
   // Terminal character
   auto tc = &vterm->text[ty * vterm->width + tx];
   // New character
-  charData nc;
+  charData nc{};
   std::memcpy (&nc, ac, sizeof(nc));
   // Covered character
   auto cc = getCoveredCharacter (terminal_pos + FPoint(1, 1), area->widget);
@@ -1213,7 +1208,7 @@ void FVTerm::updateVTerm (term_area* area)
   else
     y_end = height;
 
-  for (int y = 0; y < y_end; y++)  // Line loop
+  for (int y{0}; y < y_end; y++)  // Line loop
   {
     int _xmin, _xmax;
     bool modified = false;
@@ -1284,16 +1279,15 @@ bool FVTerm::updateVTermCursor (term_area* area)
 
   if ( area->input_cursor_visible )
   {
-    int cx, cy, ax, ay, x, y;
     // area offset
-    ax  = area->offset_left;
-    ay  = area->offset_top;
+    int ax  = area->offset_left;
+    int ay  = area->offset_top;
     // area cursor position
-    cx = area->input_cursor_x;
-    cy = area->input_cursor_y;
+    int cx = area->input_cursor_x;
+    int cy = area->input_cursor_y;
     // terminal position
-    x  = ax + cx;
-    y  = ay + cy;
+    int x  = ax + cx;
+    int y  = ay + cy;
 
     if ( isInsideArea (FPoint(cx, cy), area)
       && isInsideTerminal (FPoint(x, y))
@@ -1362,7 +1356,7 @@ void FVTerm::getArea (const FPoint& pos, term_area* area)
   else
     length = area->width;
 
-  for (int y = 0; y < y_end; y++)  // line loop
+  for (int y{0}; y < y_end; y++)  // line loop
   {
     auto tc = &vterm->text[(ay + y) * vterm->width + ax];  // terminal character
     auto ac = &area->text[y * area->width];  // area character
@@ -1390,8 +1384,7 @@ void FVTerm::getArea (const FRect& box, term_area* area)
   int h = int(box.getHeight());
   int dx = x - area->offset_left + 1;
   int dy = y - area->offset_top + 1;
-  int y_end;
-  int length;
+  int y_end{}, length{};
 
   if ( x < 0 || y < 0 )
     return;
@@ -1429,8 +1422,8 @@ void FVTerm::putArea (const FPoint& pos, term_area* area)
 {
   // Copies the given area block to the virtual terminal position
 
-  charData* tc;  // terminal character
-  charData* ac;  // area character
+  charData* tc{};  // terminal character
+  charData* ac{};  // area character
 
   if ( ! area || ! area->visible )
     return;
@@ -1440,7 +1433,7 @@ void FVTerm::putArea (const FPoint& pos, term_area* area)
   int width = area->width + area->right_shadow;
   int height = area->height + area->bottom_shadow;
   int ol = 0;  // outside left
-  int y_end, length;
+  int y_end{}, length{};
 
   if ( ax < 0 )
   {
@@ -1461,7 +1454,7 @@ void FVTerm::putArea (const FPoint& pos, term_area* area)
   if ( length < 1 )
     return;
 
-  for (int y = 0; y < y_end; y++)  // line loop
+  for (int y{0}; y < y_end; y++)  // line loop
   {
     if ( area->changes[y].trans_count == 0 )
     {
@@ -1473,7 +1466,7 @@ void FVTerm::putArea (const FPoint& pos, term_area* area)
     else
     {
       // Line has one or more transparent characters
-      for (int x = 0; x < length; x++)  // column loop
+      for (int x{0}; x < length; x++)  // column loop
       {
         int cx = ax + x;
         int cy = ay + y;
@@ -1497,12 +1490,9 @@ void FVTerm::putArea (const FPoint& pos, term_area* area)
 void FVTerm::scrollAreaForward (term_area* area)
 {
   // Scrolls the entire area up line down
-  int total_width
-    , length
-    , y_max;
-  charData  nc;  // next character
-  charData* lc;  // last character
-  charData* dc;  // destination character
+  charData  nc{};  // next character
+  charData* lc{};  // last character
+  charData* dc{};  // destination character
 
   if ( ! area )
     return;
@@ -1510,11 +1500,11 @@ void FVTerm::scrollAreaForward (term_area* area)
   if ( area->height <= 1 )
     return;
 
-  length = area->width;
-  total_width = area->width + area->right_shadow;
-  y_max = area->height - 1;
+  int length = area->width;
+  int total_width = area->width + area->right_shadow;
+  int y_max = area->height - 1;
 
-  for (int y = 0; y < y_max; y++)
+  for (int y{0}; y < y_max; y++)
   {
     int pos1 = y * total_width;
     int pos2 = (y + 1) * total_width;
@@ -1544,7 +1534,7 @@ void FVTerm::scrollAreaForward (term_area* area)
       putArea (FPoint(1, 1), vdesktop);
 
       // avoid update lines from 0 to (y_max - 1)
-      for (int y = 0; y < y_max; y++)
+      for (int y{0}; y < y_max; y++)
       {
         area->changes[y].xmin = uInt(area->width - 1);
         area->changes[y].xmax = 0;
@@ -1557,12 +1547,10 @@ void FVTerm::scrollAreaForward (term_area* area)
 void FVTerm::scrollAreaReverse (term_area* area)
 {
   // Scrolls the entire area one line down
-  int total_width
-    , length
-    , y_max;
-  charData  nc;  // next character
-  charData* lc;  // last character
-  charData* dc;  // destination character
+
+  charData  nc{};  // next character
+  charData* lc{};  // last character
+  charData* dc{};  // destination character
 
   if ( ! area )
     return;
@@ -1570,9 +1558,9 @@ void FVTerm::scrollAreaReverse (term_area* area)
   if ( area->height <= 1 )
     return;
 
-  length = area->width;
-  total_width = area->width + area->right_shadow;
-  y_max = area->height - 1;
+  int length = area->width;
+  int total_width = area->width + area->right_shadow;
+  int y_max = area->height - 1;
 
   for (int y = y_max; y > 0; y--)
   {
@@ -1604,7 +1592,7 @@ void FVTerm::scrollAreaReverse (term_area* area)
       putArea (FPoint(1, 1), vdesktop);
 
       // avoid update lines from 1 to y_max
-      for (int y = 1; y <= y_max; y++)
+      for (int y{1}; y <= y_max; y++)
       {
         area->changes[y].xmin = uInt(area->width - 1);
         area->changes[y].xmax = 0;
@@ -1618,7 +1606,7 @@ void FVTerm::clearArea (term_area* area, int fillchar)
 {
   // Clear the area with the current attributes
 
-  charData nc;  // next character
+  charData nc{};  // next character
 
   // Current attributes with a space character
   std::memcpy (&nc, &next_attribute, sizeof(nc));
@@ -1640,7 +1628,7 @@ void FVTerm::clearArea (term_area* area, int fillchar)
   else
     clearAreaWithShadow(area, nc);
 
-  for (int i = 0; i < area->height; i++)
+  for (int i{0}; i < area->height; i++)
   {
     area->changes[i].xmin = 0;
     area->changes[i].xmax = w - 1;
@@ -1655,7 +1643,7 @@ void FVTerm::clearArea (term_area* area, int fillchar)
       area->changes[i].trans_count = 0;
   }
 
-  for (int i = 0; i < area->bottom_shadow; i++)
+  for (int i{0}; i < area->bottom_shadow; i++)
   {
     int y = area->height + i;
     area->changes[y].xmin = 0;
@@ -1672,7 +1660,7 @@ charData FVTerm::generateCharacter (const FPoint& pos)
   // Generates characters for a given position considering all areas
 
   int x = pos.getX();
-  int y =pos.getY();
+  int y = pos.getY();
   auto sc = &vdesktop->text[y * vdesktop->width + x];  // shown character
 
   if ( ! FWidget::window_list || FWidget::window_list->empty() )
@@ -1893,11 +1881,6 @@ void FVTerm::init (bool disable_alt_screen)
     std::abort();
   }
 
-  // Preset to false
-  terminal_update_pending = \
-  force_terminal_update   = \
-  stop_terminal_updates   = false;
-
   // term_attribute stores the current state of the terminal
   term_attribute.code         = '\0';
   term_attribute.fg_color     = fc::Default;
@@ -1994,8 +1977,7 @@ void FVTerm::putAreaCharacter ( const FPoint& pos, FVTerm* obj
   if ( ac->attr.bit.transparent )  // Transparent
   {
     // Restore one character on vterm
-    charData ch;
-    ch = getCoveredCharacter (pos, obj);
+    charData ch = getCoveredCharacter (pos, obj);
     std::memcpy (tc, &ch, sizeof(*tc));
   }
   else  // Mot transparent
@@ -2003,8 +1985,7 @@ void FVTerm::putAreaCharacter ( const FPoint& pos, FVTerm* obj
     if ( ac->attr.bit.trans_shadow )  // Transparent shadow
     {
       // Get covered character + add the current color
-      charData ch;
-      ch = getCoveredCharacter (pos, obj);
+      charData ch = getCoveredCharacter (pos, obj);
       ch.fg_color = ac->fg_color;
       ch.bg_color = ac->bg_color;
       ch.attr.bit.reverse  = false;
@@ -2023,9 +2004,9 @@ void FVTerm::putAreaCharacter ( const FPoint& pos, FVTerm* obj
     else if ( ac->attr.bit.inherit_bg )
     {
       // Add the covered background to this character
-      charData ch, cc;
+      charData ch{};
       std::memcpy (&ch, ac, sizeof(ch));
-      cc = getCoveredCharacter (pos, obj);
+      charData cc = getCoveredCharacter (pos, obj);
       ch.bg_color = cc.bg_color;
       std::memcpy (tc, &ch, sizeof(*tc));
     }
@@ -2104,7 +2085,7 @@ bool FVTerm::clearTerm (int fillchar)
   {
     term_pos->setPoint(-1, -1);
 
-    for (int i = 0; i < int(getLineNumber()); i++)
+    for (int i{0}; i < int(getLineNumber()); i++)
     {
       setTermXY (0, i);
       appendOutputBuffer (cb);
@@ -2135,7 +2116,7 @@ bool FVTerm::clearFullArea (term_area* area, charData& nc)
   }
   else
   {
-    for (int i = 0; i < vdesktop->height; i++)
+    for (int i{0}; i < vdesktop->height; i++)
     {
       vdesktop->changes[i].xmin = 0;
       vdesktop->changes[i].xmax = uInt(vdesktop->width) - 1;
@@ -2155,7 +2136,7 @@ void FVTerm::clearAreaWithShadow (term_area* area, charData& nc)
   int total_width = area->width + area->right_shadow;
   t_char.attr.bit.transparent = true;
 
-  for (int y = 0; y < area->height; y++)
+  for (int y{0}; y < area->height; y++)
   {
     int pos = y * total_width;
     // Clear area
@@ -2165,7 +2146,7 @@ void FVTerm::clearAreaWithShadow (term_area* area, charData& nc)
   }
 
   // Make bottom shadow transparent
-  for (int y = 0; y < area->bottom_shadow; y++)
+  for (int y{0}; y < area->bottom_shadow; y++)
   {
     int pos = total_width * (y + area->height);
     std::fill_n (&area->text[pos], total_width, t_char);
@@ -2223,7 +2204,7 @@ bool FVTerm::canClearLeadingWS (uInt& xmin, uInt y)
     bool normal = FTerm::isNormal(first_char);
     bool& ut = FTermcap::background_color_erase;
 
-    for (uInt x = 1; x < uInt(vt->width); x++)
+    for (uInt x{1}; x < uInt(vt->width); x++)
     {
       auto ch = &vt->text[y * uInt(vt->width) + x];
 
@@ -2294,7 +2275,7 @@ bool FVTerm::skipUnchangedCharacters(uInt& x, uInt xmax, uInt y)
 
   if ( print_char->attr.bit.no_changes )
   {
-    uInt count = 1;
+    uInt count{1};
 
     for (uInt i = x + 1; i <= xmax; i++)
     {
@@ -2407,7 +2388,7 @@ FVTerm::exit_state FVTerm::eraseCharacters ( uInt& x, uInt xmax, uInt y
     {
       x--;
 
-      for (uInt i = 0; i < whitespace; i++, x++)
+      for (uInt i{0}; i < whitespace; i++, x++)
         appendCharacter (print_char);
     }
 
@@ -2429,7 +2410,7 @@ FVTerm::exit_state FVTerm::repeatCharacter (uInt& x, uInt xmax, uInt y)
   if ( ! rp )
     return not_used;
 
-  uInt repetitions = 1;
+  uInt repetitions{1};
 
   for (uInt i = x + 1; i <= xmax; i++)
   {
@@ -2464,7 +2445,7 @@ FVTerm::exit_state FVTerm::repeatCharacter (uInt& x, uInt xmax, uInt y)
     {
       x--;
 
-      for (uInt i = 0; i < repetitions; i++, x++)
+      for (uInt i{0}; i < repetitions; i++, x++)
         appendCharacter (print_char);
     }
 
@@ -2504,11 +2485,11 @@ void FVTerm::cursorWrap()
 //----------------------------------------------------------------------
 bool FVTerm::printWrap (term_area* area)
 {
-  bool end_of_area = false;
-  int width  = area->width,
-      height = area->height,
-      rsh    = area->right_shadow,
-      bsh    = area->bottom_shadow;
+  bool end_of_area{false};
+  int width  = area->width
+    , height = area->height
+    , rsh    = area->right_shadow
+    , bsh    = area->bottom_shadow;
 
   // Line break at right margin
   if ( area->cursor_x > width + rsh )
@@ -2804,15 +2785,14 @@ int FVTerm::appendLowerRight (charData*& screen_char)
   }
   else
   {
-    int x, y;
     auto& IC = TCAP(fc::t_parm_ich);
     auto& im = TCAP(fc::t_enter_insert_mode);
     auto& ei = TCAP(fc::t_exit_insert_mode);
     auto& ip = TCAP(fc::t_insert_padding);
     auto& ic = TCAP(fc::t_insert_character);
 
-    x = int(getColumnNumber()) - 2;
-    y = int(getLineNumber()) - 1;
+    int x = int(getColumnNumber()) - 2;
+    int y = int(getLineNumber()) - 1;
     setTermXY (x, y);
     appendChar (screen_char);
     term_pos->x_ref()++;
diff --git a/src/fwidget.cpp b/src/fwidget.cpp
index 4db505e5..00d48e8b 100644
--- a/src/fwidget.cpp
+++ b/src/fwidget.cpp
@@ -35,21 +35,21 @@ namespace finalcut
 {
 
 // global FWidget object
-static FWidget* rootObject = nullptr;
+static FWidget* rootObject{nullptr};
 
 // static class attributes
-FStatusBar*          FWidget::statusbar          = nullptr;
-FMenuBar*            FWidget::menubar            = nullptr;
-FWidget*             FWidget::show_root_widget   = nullptr;
-FWidget*             FWidget::redraw_root_widget = nullptr;
-FWidget::widgetList* FWidget::window_list        = nullptr;
-FWidget::widgetList* FWidget::dialog_list        = nullptr;
-FWidget::widgetList* FWidget::always_on_top_list = nullptr;
-FWidget::widgetList* FWidget::close_widget       = nullptr;
-FWidgetColors        FWidget::wc;
-bool                 FWidget::init_desktop;
-bool                 FWidget::hideable;
-uInt                 FWidget::modal_dialogs;
+FStatusBar*          FWidget::statusbar{nullptr};
+FMenuBar*            FWidget::menubar{nullptr};
+FWidget*             FWidget::show_root_widget{nullptr};
+FWidget*             FWidget::redraw_root_widget{nullptr};
+FWidget::widgetList* FWidget::window_list{nullptr};
+FWidget::widgetList* FWidget::dialog_list{nullptr};
+FWidget::widgetList* FWidget::always_on_top_list{nullptr};
+FWidget::widgetList* FWidget::close_widget{nullptr};
+FWidgetColors        FWidget::wc{};
+bool                 FWidget::init_desktop{false};
+bool                 FWidget::hideable{false};
+uInt                 FWidget::modal_dialogs{};
 
 //----------------------------------------------------------------------
 // class FWidget
@@ -344,7 +344,7 @@ void FWidget::setY (int y, bool adjust)
 //----------------------------------------------------------------------
 void FWidget::setPos (const FPoint& p, bool adjust)
 {
-  FPoint pos = p;
+  FPoint pos(p);
 
   if ( getX() == pos.getX() && wsize.getX() == pos.getX()
     && getY() == pos.getY() && wsize.getY() == pos.getY() )
@@ -668,7 +668,7 @@ void FWidget::setPrintPos (const FPoint& pos)
 //----------------------------------------------------------------------
 void FWidget::setDoubleFlatLine (fc::sides side, bool bit)
 {
-  uLong length;
+  uLong length{};
 
   assert ( side == fc::top
         || side == fc::right
@@ -702,8 +702,6 @@ void FWidget::setDoubleFlatLine (fc::sides side, bool bit)
 //----------------------------------------------------------------------
 void FWidget::setDoubleFlatLine (fc::sides side, int pos, bool bit)
 {
-  uLong length, index;
-
   assert ( side == fc::top
         || side == fc::right
         || side == fc::bottom
@@ -711,7 +709,8 @@ void FWidget::setDoubleFlatLine (fc::sides side, int pos, bool bit)
 
   assert ( pos >= 1 );
 
-  index = uLong(pos - 1);
+  uLong length{};
+  uLong index = uLong(pos - 1);
 
   switch ( side )
   {
@@ -789,7 +788,7 @@ int FWidget::numOfFocusableChildren()
   if ( ! hasChildren() )
     return 0;
 
-  int num = 0;
+  int num{0};
   auto iter = FObject::begin();
   auto last = FObject::end();
 
@@ -840,7 +839,7 @@ void FWidget::addCallback ( const FString& cb_signal
                           , FDataPtr data )
 {
   // add a (normal) function pointer as callback
-  callback_data obj = { cb_signal, cb_handler, data };
+  callback_data obj{ cb_signal, cb_handler, data };
   callback_objects.push_back(obj);
 }
 
@@ -851,7 +850,7 @@ void FWidget::addCallback ( const FString& cb_signal
                           , FDataPtr data )
 {
   // add a member function pointer as callback
-  member_callback_data obj = { cb_signal, cb_instance, cb_handler, data };
+  member_callback_data obj{ cb_signal, cb_instance, cb_handler, data };
   member_callback_objects.push_back(obj);
 }
 
@@ -1021,9 +1020,9 @@ void FWidget::resize()
 {
   if ( isRootWidget() )
   {
-    FRect old_term_geometry = getTermGeometry();
+    FRect old_term_geometry (getTermGeometry());
     detectTermSize();
-    FRect term_geometry = getTermGeometry();
+    FRect term_geometry (getTermGeometry());
     term_geometry.move (-1, -1);
 
     if ( old_term_geometry.getSize() == term_geometry.getSize() )
@@ -1278,7 +1277,7 @@ void FWidget::clearShadow()
 
   if ( w <= offset.getX2() )
   {
-    for (std::size_t y = 1; y <= getHeight(); y++)
+    for (std::size_t y{1}; y <= getHeight(); y++)
     {
       print() << FPoint(w + 1, int(y)) << ' ';  // clear █
     }
@@ -1288,7 +1287,7 @@ void FWidget::clearShadow()
   {
     print() << FPoint(2, h + 1);
 
-    for (std::size_t i = 1; i <= getWidth(); i++)
+    for (std::size_t i{1}; i <= getWidth(); i++)
       print (' ');  // clear ▀
   }
 
@@ -1312,7 +1311,7 @@ void FWidget::drawFlatBorder()
   else
     setColor (wc.dialog_fg, wc.dialog_bg);
 
-  for (std::size_t y = 0; y < getHeight(); y++)
+  for (std::size_t y{0}; y < getHeight(); y++)
   {
     print() << FPoint(x1 - 1, y1 + int(y) + 1);
 
@@ -1326,7 +1325,7 @@ void FWidget::drawFlatBorder()
 
   print() << FPoint(x2, y1 + 1);
 
-  for (std::size_t y = 0; y < getHeight(); y++)
+  for (std::size_t y{0}; y < getHeight(); y++)
   {
     if ( double_flatline_mask.right[y] )
       // left+right line (on right side)
@@ -1340,7 +1339,7 @@ void FWidget::drawFlatBorder()
 
   print() << FPoint(x1, y1);
 
-  for (std::size_t x = 0; x < getWidth(); x++)
+  for (std::size_t x{0}; x < getWidth(); x++)
   {
     if ( double_flatline_mask.top[x] )
       // top+bottom line (at top)
@@ -1352,7 +1351,7 @@ void FWidget::drawFlatBorder()
 
   print() << FPoint(x1, y2);
 
-  for (std::size_t x = 0; x < getWidth(); x++)
+  for (std::size_t x{0}; x < getWidth(); x++)
   {
     if ( double_flatline_mask.bottom[x] )
       // top+bottom line (at bottom)
@@ -1380,7 +1379,7 @@ void FWidget::clearFlatBorder()
     setColor (wc.dialog_fg, wc.dialog_bg);
 
   // clear on left side
-  for (std::size_t y = 0; y < getHeight(); y++)
+  for (std::size_t y{0}; y < getHeight(); y++)
   {
     print() << FPoint(x1 - 1, y1 + int(y) + 1);
 
@@ -1391,7 +1390,7 @@ void FWidget::clearFlatBorder()
   }
 
   // clear on right side
-  for (std::size_t y = 0; y < getHeight(); y++)
+  for (std::size_t y{0}; y < getHeight(); y++)
   {
     print() << FPoint(x2, y1 + int(y) + 1);
 
@@ -1404,7 +1403,7 @@ void FWidget::clearFlatBorder()
   // clear at top
   print() << FPoint(x1, y1);
 
-  for (std::size_t x = 0; x < getWidth(); x++)
+  for (std::size_t x{0}; x < getWidth(); x++)
   {
     if ( double_flatline_mask.top[x] )
       print (fc::NF_border_line_upper);
@@ -1415,7 +1414,7 @@ void FWidget::clearFlatBorder()
   // clear at bottom
   print() << FPoint(x1, y2);
 
-  for (std::size_t x = 0; x < getWidth(); x++)
+  for (std::size_t x{0}; x < getWidth(); x++)
   {
     if ( double_flatline_mask.bottom[x] )
       print (fc::NF_border_line_bottom);
@@ -1442,7 +1441,7 @@ FVTerm::term_area* FWidget::getPrintArea()
     return print_area;
   else
   {
-    FWidget* obj;
+    FWidget* obj{};
     FWidget* p_obj = this;
 
     do
@@ -1603,7 +1602,7 @@ void FWidget::hideSize (const FSize& size)
   if ( size.isEmpty() )
     return;
 
-  FColor fg, bg;
+  FColor fg{}, bg{};
   auto parent_widget = getParentWidget();
 
   if ( parent_widget )
@@ -1623,7 +1622,7 @@ void FWidget::hideSize (const FSize& size)
   if ( blank == 0 )
     return;
 
-  for (int y = 0; y < int(size.getWidth()); y++)
+  for (int y{0}; y < int(size.getWidth()); y++)
   {
     print() << FPoint(1, 1 + y) << blank;
   }
@@ -1664,7 +1663,7 @@ bool FWidget::focusNextChild()
       continue;
     }
 
-    FWidget* next = nullptr;
+    FWidget* next{nullptr};
     auto next_element = iter;
 
     do
@@ -1723,7 +1722,7 @@ bool FWidget::focusPrevChild()
     if ( w != this )
       continue;
 
-    FWidget* prev = nullptr;
+    FWidget* prev{nullptr};
     auto prev_element = iter;
 
     do
@@ -2050,7 +2049,7 @@ inline void FWidget::insufficientSpaceAdjust()
 //----------------------------------------------------------------------
 void FWidget::KeyPressEvent (FKeyEvent* kev)
 {
-  bool accpt_focus = false;
+  bool accpt_focus{false};
 
   if ( kev->key() == fc::Fkey_tab )
     accpt_focus = focusNextChild();
@@ -2060,7 +2059,7 @@ void FWidget::KeyPressEvent (FKeyEvent* kev)
   if ( accpt_focus )
     return;
 
-  FWidget* widget = this;
+  FWidget* widget(this);
 
   while ( widget )
   {
@@ -2089,7 +2088,7 @@ void FWidget::KeyPressEvent (FKeyEvent* kev)
 //----------------------------------------------------------------------
 void FWidget::KeyDownEvent (FKeyEvent* kev)
 {
-  FWidget* widget = this;
+  FWidget* widget(this);
 
   while ( widget )
   {
@@ -2151,7 +2150,7 @@ void FWidget::draw()
 void FWidget::drawWindows()
 {
   // redraw windows
-  charData default_char;
+  charData default_char{};
   default_char.code         = ' ';
   default_char.fg_color     = fc::Black;
   default_char.bg_color     = fc::Black;
@@ -2216,7 +2215,7 @@ void FWidget::drawTransparentShadow (int x1, int y1, int x2, int y2)
   setColor (wc.shadow_bg, wc.shadow_fg);
   setTransShadow();
 
-  for (std::size_t y = 1; y < getHeight(); y++)
+  for (std::size_t y{1}; y < getHeight(); y++)
   {
     print() << FPoint(x2 + 1, y1 + int(y)) << "  ";
   }
@@ -2229,7 +2228,7 @@ void FWidget::drawTransparentShadow (int x1, int y1, int x2, int y2)
   setColor (wc.shadow_bg, wc.shadow_fg);
   setTransShadow();
 
-  for (std::size_t x = 2; x <= getWidth() + 1; x++)
+  for (std::size_t x{2}; x <= getWidth() + 1; x++)
     print (' ');
 
   unsetTransShadow();
@@ -2263,7 +2262,7 @@ void FWidget::drawBlockShadow (int x1, int y1, int x2, int y2)
   if ( isWindowWidget() )
     unsetInheritBackground();
 
-  for (std::size_t y = 1; y < getHeight(); y++)
+  for (std::size_t y{1}; y < getHeight(); y++)
   {
     print() << FPoint(x2 + 1, y1 + int(y)) << block;  // █
   }
@@ -2273,7 +2272,7 @@ void FWidget::drawBlockShadow (int x1, int y1, int x2, int y2)
   if ( isWindowWidget() )
     setInheritBackground();
 
-  for (std::size_t x = 1; x <= getWidth(); x++)
+  for (std::size_t x{1}; x <= getWidth(); x++)
     print (fc::UpperHalfBlock);  // ▀
 
   if ( isWindowWidget() )
@@ -2330,7 +2329,7 @@ FKey getHotkey (const FString& text)
 
   std::size_t length = text.getLength();
 
-  for (std::size_t i = 0; i < length; i++)
+  for (std::size_t i{0}; i < length; i++)
   {
     try
     {
@@ -2350,11 +2349,11 @@ std::size_t getHotkeyPos (wchar_t src[], wchar_t dest[], std::size_t length)
 {
   // Find hotkey position in string
   // + generate a new string without the '&'-sign
-  wchar_t* txt = src;
+  const wchar_t* txt = src;
   constexpr std::size_t NOT_SET = static_cast<std::size_t>(-1);
-  std::size_t hotkeypos = NOT_SET;
+  std::size_t hotkeypos{NOT_SET};
 
-  for (std::size_t i = 0; i < length; i++)
+  for (std::size_t i{0}; i < length; i++)
   {
     if ( i < length && txt[i] == L'&' && hotkeypos == NOT_SET )
     {
diff --git a/src/fwindow.cpp b/src/fwindow.cpp
index 5cfc4c5d..b09a63ee 100644
--- a/src/fwindow.cpp
+++ b/src/fwindow.cpp
@@ -32,7 +32,7 @@ namespace finalcut
 {
 
 // static attributes
-FWindow* FWindow::previous_window = nullptr;
+FWindow* FWindow::previous_window{nullptr};
 
 
 //----------------------------------------------------------------------
@@ -45,7 +45,7 @@ FWindow::FWindow(FWidget* parent)
   : FWidget(parent)
 {
   setWindowWidget();
-  FRect geometry = getTermGeometry();
+  FRect geometry (getTermGeometry());
   geometry.move(-1, -1);
   createArea (geometry, getShadow(), vwin);
   addWindow (this);
@@ -322,7 +322,7 @@ void FWindow::setY (int y, bool adjust)
 //----------------------------------------------------------------------
 void FWindow::setPos (const FPoint& p, bool adjust)
 {
-  FPoint pos = p;
+  FPoint pos(p);
 
   if ( pos.getY() < 1 )
     pos.setY(1);
@@ -344,7 +344,7 @@ void FWindow::setWidth (std::size_t w, bool adjust)
 
   if ( isVirtualWindow() && getWidth() != old_width )
   {
-    FRect geometry = getTermGeometry();
+    FRect geometry (getTermGeometry());
     geometry.move(-1, -1);
     resizeArea (geometry, getShadow(), vwin);
   }
@@ -358,7 +358,7 @@ void FWindow::setHeight (std::size_t h, bool adjust)
 
   if ( isVirtualWindow() && getHeight() != old_height )
   {
-    FRect geometry = getTermGeometry();
+    FRect geometry (getTermGeometry());
     geometry.move(-1, -1);
     resizeArea (geometry, getShadow(), vwin);
   }
@@ -374,7 +374,7 @@ void FWindow::setSize (const FSize& size, bool adjust)
   if ( isVirtualWindow()
     && (getWidth() != old_width || getHeight() != old_height) )
   {
-    FRect geometry = getTermGeometry();
+    FRect geometry (getTermGeometry());
     geometry.move(-1, -1);
     resizeArea (geometry, getShadow(), vwin);
   }
@@ -387,8 +387,8 @@ void FWindow::setGeometry ( const FPoint& p, const FSize& size, bool adjust)
 
   int old_x = getX();
   int old_y = getY();
-  FPoint pos = p;
-  FSize old_size = getSize();
+  FPoint pos(p);
+  FSize old_size(getSize());
 
   if ( pos.getY() < 1 )
     pos.setY(1);
@@ -400,7 +400,7 @@ void FWindow::setGeometry ( const FPoint& p, const FSize& size, bool adjust)
 
   if ( getSize() != old_size )
   {
-    FRect geometry = getTermGeometry();
+    FRect geometry (getTermGeometry());
     geometry.move(-1, -1);
     resizeArea (geometry, getShadow(), vwin);
   }
@@ -659,7 +659,7 @@ bool FWindow::zoomWindow()
   if ( zoomed )
   {
     zoomed = false;
-    FRect oldGeometry = getTermGeometryWithShadow();
+    FRect oldGeometry (getTermGeometryWithShadow());
     setGeometry (normalGeometry);
     restoreVTerm (oldGeometry);
     redraw();
@@ -669,7 +669,7 @@ bool FWindow::zoomWindow()
     zoomed = true;
     // save the current geometry
     normalGeometry = getGeometry();
-    FRect oldGeometry = getTermGeometryWithShadow();
+    FRect oldGeometry (getTermGeometryWithShadow());
     setGeometry (FPoint(1, 1), FSize(getMaxWidth(), getMaxHeight()));
     restoreVTerm (oldGeometry);
     redraw();
diff --git a/src/include/final/fdialog.h b/src/include/final/fdialog.h
index 71377d55..c1343f6b 100644
--- a/src/include/final/fdialog.h
+++ b/src/include/final/fdialog.h
@@ -275,7 +275,7 @@ inline bool FDialog::unsetScrollable()
 
 //----------------------------------------------------------------------
 inline void FDialog::setText (const FString& txt)
-{ tb_text = txt; }
+{ tb_text.setString(txt); }
 
 //----------------------------------------------------------------------
 inline bool FDialog::isModal()
diff --git a/src/include/final/flistbox.h b/src/include/final/flistbox.h
index aa1d3143..a1d9b9d0 100644
--- a/src/include/final/flistbox.h
+++ b/src/include/final/flistbox.h
@@ -126,7 +126,7 @@ inline FDataPtr FListBoxItem::getData() const
 
 //----------------------------------------------------------------------
 inline void FListBoxItem::setText (const FString& txt)
-{ text = txt; }
+{ text.setString(txt); }
 
 //----------------------------------------------------------------------
 inline void FListBoxItem::setData (FDataPtr data)
diff --git a/src/include/final/flistview.h b/src/include/final/flistview.h
index be8f92c9..a4a89dc6 100644
--- a/src/include/final/flistview.h
+++ b/src/include/final/flistview.h
@@ -587,7 +587,7 @@ FObject::FObjectIterator
                  , std::back_inserter(str_cols)
                  , [] (const T& col) -> const FString
                    {
-                     const FString s = FString() << col;
+                     const FString s(FString() << col);
                      return s;
                    }
                  );
@@ -623,7 +623,7 @@ FObject::FObjectIterator
                  , std::back_inserter(str_cols)
                  , [] (const ColT& col) -> const FString
                    {
-                     const FString s = FString() << col;
+                     const FString s(FString() << col);
                      return s;
                    }
                  );
diff --git a/src/include/final/fmessagebox.h b/src/include/final/fmessagebox.h
index da8b0404..9d0b0271 100644
--- a/src/include/final/fmessagebox.h
+++ b/src/include/final/fmessagebox.h
@@ -213,12 +213,11 @@ int FMessageBox::info ( FWidget* parent
                       , int button1
                       , int button2 )
 {
-  int reply;
   FMessageBox mbox ( caption
                    , FString() << message
                    , button0, button1, button2
                    , parent );
-  reply = mbox.exec();
+  int reply = mbox.exec();
   return reply;
 }
 
@@ -230,8 +229,7 @@ int FMessageBox::error ( FWidget* parent
                        , int button1
                        , int button2 )
 {
-  int reply;
-  const FString& caption = "Error message";
+  const FString caption{"Error message"};
   FMessageBox mbox ( caption
                    , FString() << message
                    , button0, button1, button2
@@ -241,8 +239,8 @@ int FMessageBox::error ( FWidget* parent
   mbox.setCenterText();
   mbox.setForegroundColor(mbox.wc.error_box_fg);
   mbox.setBackgroundColor(mbox.wc.error_box_bg);
-  mbox.emphasis_color  = mbox.wc.error_box_emphasis_fg;
-  reply = mbox.exec();
+  mbox.emphasis_color = mbox.wc.error_box_emphasis_fg;
+  int reply = mbox.exec();
   return reply;
 }
 
diff --git a/src/include/final/fobject.h b/src/include/final/fobject.h
index e0bbd1e5..287cce43 100644
--- a/src/include/final/fobject.h
+++ b/src/include/final/fobject.h
@@ -243,7 +243,7 @@ inline void FObject::setWidgetProperty (bool property)
 
 static inline timeval operator + (const timeval& t1, const timeval& t2)
 {
-  timeval tmp;
+  timeval tmp{};
   tmp.tv_sec = t1.tv_sec + t2.tv_sec;
 
   if ( (tmp.tv_usec = t1.tv_usec + t2.tv_usec) >= 1000000 )
@@ -258,7 +258,7 @@ static inline timeval operator + (const timeval& t1, const timeval& t2)
 //----------------------------------------------------------------------
 static inline timeval operator - (const timeval& t1, const timeval& t2)
 {
-  timeval tmp;
+  timeval tmp{};
   tmp.tv_sec = t1.tv_sec - t2.tv_sec;
 
   if ( (tmp.tv_usec = t1.tv_usec - t2.tv_usec) < 0 )
diff --git a/src/include/final/fstatusbar.h b/src/include/final/fstatusbar.h
index 84d4614e..d01592b0 100644
--- a/src/include/final/fstatusbar.h
+++ b/src/include/final/fstatusbar.h
@@ -153,7 +153,7 @@ inline void FStatusKey::setKey (FKey k)
 
 //----------------------------------------------------------------------
 inline void FStatusKey::setText (const FString& txt)
-{ text = txt; }
+{ text.setString(txt); }
 
 //----------------------------------------------------------------------
 inline void FStatusKey::unsetActive()
diff --git a/src/include/final/fstring.h b/src/include/final/fstring.h
index 2190512a..9c6730dd 100644
--- a/src/include/final/fstring.h
+++ b/src/include/final/fstring.h
@@ -200,7 +200,7 @@ class FString
     wchar_t  back()  const;
 
     FString& sprintf (const FString, ...);
-    FString clear();
+    FString  clear();
 
     const wchar_t* wc_str() const;
     wchar_t* wc_str();
diff --git a/src/include/final/fsystemimpl.h b/src/include/final/fsystemimpl.h
index fa67e45d..f5460887 100644
--- a/src/include/final/fsystemimpl.h
+++ b/src/include/final/fsystemimpl.h
@@ -138,7 +138,7 @@ class FSystemImpl : public FSystem
 
     int ioctl (int fd, uLong request, ...) override
     {
-      va_list args;
+      va_list args{};
       va_start (args, request);
       void* argp = va_arg (args, void*);
       int ret = ::ioctl (fd, request, argp);
@@ -148,7 +148,7 @@ class FSystemImpl : public FSystem
 
     int open (const char* pathname, int flags, ...) override
     {
-      va_list args;
+      va_list args{};
       va_start (args, flags);
       mode_t mode = static_cast<mode_t>(va_arg (args, int));
       int ret = ::open (pathname, flags, mode);
diff --git a/src/include/final/ftermdetection.h b/src/include/final/ftermdetection.h
index 94451fd1..4bfb2edb 100644
--- a/src/include/final/ftermdetection.h
+++ b/src/include/final/ftermdetection.h
@@ -206,38 +206,20 @@ class FTermDetection final
 
     static struct colorEnv
     {
-      void setDefault()
-      {
-        string1 = nullptr;
-        string2 = nullptr;
-        string3 = nullptr;
-        string4 = nullptr;
-        string5 = nullptr;
-        string6 = nullptr;
-        string7 = nullptr;
-      }
-
-      char* string1;
-      char* string2;
-      char* string3;
-      char* string4;
-      char* string5;
-      char* string6;
-      char* string7;
+      char* string1{nullptr};
+      char* string2{nullptr};
+      char* string3{nullptr};
+      char* string4{nullptr};
+      char* string5{nullptr};
+      char* string6{nullptr};
+      char* string7{nullptr};
     } color_env;
 
     static struct secondaryDA
     {
-      void setDefault()
-      {
-        terminal_id_type = -1;
-        terminal_id_version = -1;
-        terminal_id_hardware = -1;
-      }
-
-      int terminal_id_type;
-      int terminal_id_version;
-      int terminal_id_hardware;
+      int terminal_id_type{-1};
+      int terminal_id_version{-1};
+      int terminal_id_hardware{-1};
     } secondary_da;
 };
 #pragma pack(pop)