1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52
|
/*
* memset.c - replacement for memset(3), using duff's device.
* Copyright (C) 1995 - 2004 Michael Riepe
*
* This 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.
*
* This 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#if HAVE_CONFIG_H
#include <config.h>
#endif /* HAVE_CONFIG_H */
#ifndef lint
static const char rcsid[]
= "@(#) $Id: memset.c,v 1.11 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
#include <stddef.h> /* for size_t */
#include <sys/types.h>
void *_elf_memset(void *s, int c, size_t n) {
char *t = (char *)s;
if (n) {
switch (n % 8u) {
do {
n -= 8;
default:
case 0: *t++ = (char)c;
case 7: *t++ = (char)c;
case 6: *t++ = (char)c;
case 5: *t++ = (char)c;
case 4: *t++ = (char)c;
case 3: *t++ = (char)c;
case 2: *t++ = (char)c;
case 1: *t++ = (char)c;
} while (n > 8);
}
}
return s;
}
|