On 11/6/2018 4:42 AM, Mateusz wrote:
W dniu 06.11.2018 o 04:58, Earnie via Mingw-w64-public pisze:
On 11/5/2018 11:49 AM, Mateusz wrote:
functions. In my patch we use _ftime32 and _ftime64 functions and we define
_ftime to _ftime32 or _ftime64. It should work on WinXP because _ftime32 is
aliased as _ftime for 32-bit libmsvcrt.a.
But what about 32bit Win10? Does this idea still work there?
Yes, it works.
_ftime functions in msvcrt.dll:
WinXPsp2: _ftime, _ftime64
Vista/7/10: _ftime, _ftime32, _ftime32_s, _ftime64, _ftime64_s
_ftime functions in msvcr100.dll and newer:
_ftime32, _ftime32_s, _ftime64, _ftime64_s
In 32-bit msvcrt.dll _ftime it is the same as _ftime32.
In 64-bit msvcrt.dll _ftime it is the same as _ftime64.
After this patch in 64-bit libs we use _ftime32, _ftime32_s, _ftime64,
_ftime64_s as base functions.
In 32-bit libs we use for msvcrt.dll -- _ftime, _ftime32_s, _ftime64,
_ftime64_s as base functions, for newer dll (like msvcr120.dll) -- _ftime32,
_ftime32_s, _ftime64, _ftime64_s as base functions. The trick is not in *.h
files but int 32-bit libmsvcrt.a where we emulate _ftime32 as _ftime function
(it works from WinXP up to 10).
Exactly in file mingw-w64-crt/lib-common/msvcrt.def.in
+F_I386(_ftime32 == _ftime)
+F_NON_I386(_ftime32)
Thanks for the explanation.
--
Earnie
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