Piotr Caban : msvcrt: Copy memset implementation from ntdll.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 41a5da9b763c2d7009cdbc84cdcab0f7453fe13f
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=41a5da9b763c2d7009cdbc84c...

Author: Piotr Caban 
Date:   Wed Jul 22 11:10:28 2020 +0200

msvcrt: Copy memset implementation from ntdll.

Signed-off-by: Piotr Caban 
Signed-off-by: Alexandre Julliard

---

dlls/msvcrt/string.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/dlls/msvcrt/string.c b/dlls/msvcrt/string.c
index 8612780722..8842e0791e 100644
--- a/dlls/msvcrt/string.c
+++ b/dlls/msvcrt/string.c
@@ -2263,7 +2263,9 @@ void * __cdecl MSVCRT_memcpy(void *dst, const void *src, MSVCRT_size_t n)
  */
 void* __cdecl MSVCRT_memset(void *dst, int c, MSVCRT_size_t n)
 {
-    return memset(dst, c, n);
+    volatile unsigned char *d = dst;  /* avoid gcc optimizations */
+    while (n--) *d++ = c;
+    return dst;
 }

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