zig/lib/libc/mingw/misc/wmemmove.c
Andrew Kelley 49d1a4c562 move lib dirs to lib subdir
also start prefering NtDll API. so far:
 * NtQueryInformationFile
 * NtClose

adds a performance workaround for windows unicode conversion. but that
should probably be removed before merging
2019-07-15 17:54:50 -04:00

46 lines
902 B
C

/**
* This file has no copyright assigned and is placed in the Public Domain.
* This file is part of the mingw-w64 runtime package.
* No warranty is given; refer to the file DISCLAIMER.PD within this package.
*/
#define __CRT__NO_INLINE
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <wchar.h>
#if 0
wchar_t *
wmemmove(s1, s2, n)
register wchar_t *s1;
register const wchar_t *s2;
register size_t n;
{
wchar_t *orig_s1 = s1;
if ( s1 == NULL || s2 == NULL || n == 0 )
return orig_s1; /* robust */
/* XXX -- The following test works only within a flat address space! */
if ( s2 >= s1 )
for ( ; n > 0; --n )
*s1++ = *s2++;
else {
s1 += n;
s2 += n;
for ( ; n > 0; --n )
*--s1 = *--s2;
}
return orig_s1;
}
#endif
wchar_t *__cdecl wmemmove(wchar_t *_S1,const wchar_t *_S2,size_t _N)
{
return (wchar_t *)memmove(_S1,_S2,_N*sizeof(wchar_t));
}