glibc/sysdeps/generic/memccpy.c
Ulrich Drepper 74a0513daf Update.
* 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>.
2000-05-07 22:33:59 +00:00

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)