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| author | Albrecht Schlosser <albrechts.fltk@online.de> | 2021-05-07 15:48:24 +0200 |
|---|---|---|
| committer | Albrecht Schlosser <albrechts.fltk@online.de> | 2021-05-07 15:48:24 +0200 |
| commit | 374232e2f483119ef73a59159c885b483cc9325a (patch) | |
| tree | c4de4aa6ba85a816a46f075e289569e688f6996a /src | |
| parent | 4190cd5426efb4f9c30109bd914a1de12ed241fb (diff) | |
Fix MSVC 2010 and older not finding round()
Actually we don't know about some newer MSVC versions, but current
version MSVC 2019 works fine w/o defining round(). If other MSVC
versions need this as well we can change the version test or add
a compiler feature test to CMake (configure not required).
Diffstat (limited to 'src')
| -rw-r--r-- | src/Fl_win32.cxx | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/Fl_win32.cxx b/src/Fl_win32.cxx index 1e5b73248..1ef76cb6c 100644 --- a/src/Fl_win32.cxx +++ b/src/Fl_win32.cxx @@ -94,6 +94,16 @@ extern void fl_trigger_clipboard_notify(int source); extern HBRUSH fl_brush_action(int action); extern void fl_cleanup_pens(void); +// MSVC 2010 can't find round() although <math.h> is included above, +// which is surprising because ceil() works fine. +// We could (should?) probably add configure/CMake feature tests for +// round() and ceil() rather than depending on MSVC version numbers. +// AlbrechtS, 02/2010 - Note: we don't know about MSVC 2012 - 2015, see +// https://docs.microsoft.com/en-us/cpp/preprocessor/predefined-macros + +#if defined(_MSC_VER) && _MSC_VER <= 1600 +#define round(A) int((A) + 0.5) +#endif // _MSC_VER <= 1600 // // USE_ASYNC_SELECT - define it if you have WSAAsyncSelect()... |