mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-06 13:20:06 +00:00
74a0513daf
* sysdeps/generic/memccpy.c (__memccpy): Don't use reg_char type for x since promotion in comparison might leads to unexpected results. Reported by Dan Pop <Dan.Pop@cern.ch>.
47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
/* Copyright (C) 1991, 1995, 1997, 1999, 2000 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 of the
|
|
License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <string.h>
|
|
|
|
#undef __memccpy
|
|
#undef memccpy
|
|
|
|
/* Copy no more than N bytes of SRC to DEST, stopping when C is found.
|
|
Return the position in DEST one byte past where C was copied, or
|
|
NULL if C was not found in the first N bytes of SRC. */
|
|
void *
|
|
__memccpy (dest, src, c, n)
|
|
void *dest;
|
|
const void *src;
|
|
int c;
|
|
size_t n;
|
|
{
|
|
register const char *s = src;
|
|
register char *d = dest;
|
|
register const char x = c;
|
|
register size_t i = n;
|
|
|
|
while (i-- > 0)
|
|
if ((*d++ = *s++) == x)
|
|
return d;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
weak_alias (__memccpy, memccpy)
|