File: memset.c

package info (click to toggle)
qtrvsim 0.9.8-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 4,844 kB
  • sloc: cpp: 25,687; ansic: 7,754; makefile: 318; python: 303; sh: 278; asm: 268; xml: 9
file content (52 lines) | stat: -rw-r--r-- 1,637 bytes parent folder | download
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;
}