Hi all,
VS2015 is raising a pointer cast truncation warning in gui_w32.c On
64bit builds with VC HandleToLong() is a function but for 32bit builds
it is a macro. The current VIM code defines a macro if one is not
defined so shadows the function call resulting in the warning.
Going through the source history this looks like it got broken when
coping with MingW warnings in 7.3.870. The following patch copes with
old MS compilers (for the Win95 hold outs - are there still any?) and
MingW. I don't have MingW so can someone please check the following
works for them, and if a 64bit MingW raises its own warning for the cast.
diff --git a/src/gui_w32.c b/src/gui_w32.c
--- a/src/gui_w32.c
+++ b/src/gui_w32.c
@@ -1769,9 +1769,11 @@ gui_mch_init(void)
#endif
#ifdef FEAT_EVAL
-# ifndef HandleToLong
-/* HandleToLong() only exists in compilers that can do 64 bit builds */
-# define HandleToLong(h) ((long)(h))
+# if !defined(_MSC_VER) || (_MSC_VER < 1400)
+/* Define HandleToLong for old MS and none-MS compilers if not defined */
+# ifndef HandleToLong
+# define HandleToLong(h) ((long)(h))
+# endif
# endif
/* set the v:windowid variable */
set_vim_var_nr(VV_WINDOWID, HandleToLong(s_hwnd));
TTFN
Mike
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