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/* Copyright (C) 1991, 1992, 1995 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., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <string.h>
/* 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. */
PTR
DEFUN(__memccpy, (dest, src, c, n),
PTR dest AND CONST PTR src AND int c AND size_t nbytes)
{
/* Except when N > 65535, this is what a hand-coded version would
do anyway. */
PTR found = memchr (src, c, n);
if (found == NULL)
{
(void) memcpy (dest, src, n);
return NULL;
}
(void) memcpy (dest, src, (char *) found + 1 - (char *) src);
return (PTR) ((char *) dest + ((char *) found + 1 - (char *) src));
}
weak_alias (__memccpy, memccpy)
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