54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
/*
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* memset.c - replacement for memset(3), using duff's device.
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* Copyright (C) 1995 - 2004 Michael Riepe
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#if HAVE_CONFIG_H
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# include <config.h>
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#endif /* HAVE_CONFIG_H */
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#ifndef lint
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static const char rcsid[] = "@(#) $Id: memset.c,v 1.11 2008/05/23 08:15:35 michael Exp $";
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#endif /* lint */
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#include <stddef.h> /* for size_t */
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#include <sys/types.h>
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void*
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_elf_memset(void *s, int c, size_t n) {
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char *t = (char*)s;
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if (n) {
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switch (n % 8u) {
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do {
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n -= 8;
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default:
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case 0: *t++ = (char)c;
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case 7: *t++ = (char)c;
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case 6: *t++ = (char)c;
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case 5: *t++ = (char)c;
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case 4: *t++ = (char)c;
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case 3: *t++ = (char)c;
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case 2: *t++ = (char)c;
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case 1: *t++ = (char)c;
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}
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while (n > 8);
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}
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}
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return s;
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}
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