mirror of https://github.com/fltk/fltk
ceb268fd34
[ 15%] Building CXX object src/CMakeFiles/fltk.dir/Fl_Text_Display.cxx.o .../fltk/src/Fl_Text_Display.cxx: In constructor ‘Fl_Text_Display::Fl_Text_Display(int, int, int, int, const char*)’: .../fltk/src/Fl_Text_Display.cxx:122:57: warning: ‘void* __builtin_memset(void*, int, long unsigned int)’ writing between 4 and 8589934584 bytes into a region of size 0 overflows the destination [-Wstringop-overflow=] 122 | for (int i=1; i<mNVisibleLines; i++) mLineStarts[i] = -1; | ~~~~~~~~~~~~~~~^~~~ .../fltk/src/Fl_Text_Display.cxx:120:39: note: at offset 4 into destination object of size 4 allocated by ‘operator new []’ 120 | mLineStarts = new int[mNVisibleLines]; | ^ This warning is IMHO obsolete because the code in question should not be executed at all (mNVisibleLines == 1). However, the compiler seems to substitute this with '__builtin_memset(...)' and analyzes "correctly" that memory at offset 4 would be overwritten but not that the written size would be 0. The "fix" uses a compiler macro and #if to clarify that this code must not be executed and should not be compiled (see comment why this code exists). |
||
---|---|---|
.github | ||
CMake | ||
FL | ||
GL | ||
cairo | ||
documentation | ||
examples | ||
fluid | ||
jpeg | ||
lib | ||
libdecor | ||
misc | ||
nanosvg | ||
png | ||
public | ||
src | ||
test | ||
util | ||
zlib | ||
.clang-format | ||
.gitattributes | ||
.gitignore | ||
.gitlab-ci.yml | ||
ANNOUNCEMENT | ||
CHANGES.txt | ||
CHANGES_1.0.txt | ||
CHANGES_1.1.txt | ||
CHANGES_1.3.txt | ||
CMakeLists.txt | ||
COPYING | ||
CREDITS.txt | ||
DartConfig.cmake | ||
Makefile | ||
README.CMake.txt | ||
README.Cairo.txt | ||
README.IDE.txt | ||
README.Unix.txt | ||
README.Wayland.txt | ||
README.Windows.txt | ||
README.abi-version.txt | ||
README.bundled-libs.txt | ||
README.experimental.txt | ||
README.macOS.md | ||
README.md | ||
README.txt | ||
autogen.sh | ||
config.guess | ||
config.sub | ||
configh.cmake.in | ||
configh.in | ||
configure.ac | ||
fl_config.cmake.in | ||
fl_config.in | ||
fltk-config.in | ||
fltk.list.in | ||
fltk.spec.in | ||
fltk.xpm | ||
fltk_version.dat | ||
forms.h | ||
install-sh | ||
mac_endianness.h | ||
makeinclude.in | ||
makesrcdist |
README.md
README - Fast Light Tool Kit (FLTK) Version 1.4.0
WHAT IS FLTK?
The Fast Light Tool Kit ("FLTK", pronounced "fulltick") is a
cross-platform C++ GUI toolkit for UNIX®/Linux® (X11 or
Wayland), Microsoft® Windows®, and macOS®.
FLTK provides modern GUI functionality without the bloat and
supports 3D graphics via OpenGL® and its built-in GLUT
emulation. It was originally developed by Mr. Bill Spitzak
and is currently maintained by a small group of developers
across the world with a central repository on GitHub.
For more information see README.txt:
https://github.com/fltk/fltk/blob/master/README.txt