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- /* Copyright (C) 1991 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 <stddef.h> /* For size_t and NULL. */
-
-
- /*
- * 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 n)
- {
- register CONST char *s = src;
- register char *d = dest;
- register CONST int x = (unsigned char) c;
- register size_t i = n;
-
- while (i-- > 0)
- if ((*d++ = *s++) == x)
- return d;
-
- return NULL;
- }
-