From 28f540f45bbacd939bfd07f213bcad2bf730b1bf Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Sat, 18 Feb 1995 01:27:10 +0000 Subject: initial import --- sysdeps/vax/memccpy.c | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 sysdeps/vax/memccpy.c (limited to 'sysdeps/vax/memccpy.c') diff --git a/sysdeps/vax/memccpy.c b/sysdeps/vax/memccpy.c new file mode 100644 index 0000000000..9849761f13 --- /dev/null +++ b/sysdeps/vax/memccpy.c @@ -0,0 +1,45 @@ +/* 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 +#include + + +/* 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) -- cgit v1.2.3