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1 /* |
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2 * memset.c - replacement for memset(3), using duff's device. |
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3 * Copyright (C) 1995 - 2004 Michael Riepe |
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4 * |
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5 * This library is free software; you can redistribute it and/or |
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6 * modify it under the terms of the GNU Library General Public |
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7 * License as published by the Free Software Foundation; either |
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8 * version 2 of the License, or (at your option) any later version. |
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9 * |
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10 * This library is distributed in the hope that it will be useful, |
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 * Library General Public License for more details. |
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14 * |
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15 * You should have received a copy of the GNU Library General Public |
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16 * License along with this library; if not, write to the Free Software |
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17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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18 */ |
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19 |
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20 #if HAVE_CONFIG_H |
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21 # include <config.h> |
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22 #endif /* HAVE_CONFIG_H */ |
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23 |
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24 #ifndef lint |
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25 static const char rcsid[] = "@(#) $Id: memset.c,v 1.10 2005/05/21 15:39:24 michael Exp $"; |
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26 #endif /* lint */ |
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27 |
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28 #include <stddef.h> /* for size_t */ |
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29 #include <sys/types.h> |
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30 |
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31 void* |
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32 _elf_memset(void *s, int c, size_t n) { |
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33 char *t = (char*)s; |
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34 |
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35 if (n) { |
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36 switch (n % 8u) { |
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37 do { |
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38 n -= 8; |
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39 default: |
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40 case 0: *t++ = (char)c; |
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41 case 7: *t++ = (char)c; |
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42 case 6: *t++ = (char)c; |
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43 case 5: *t++ = (char)c; |
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44 case 4: *t++ = (char)c; |
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45 case 3: *t++ = (char)c; |
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46 case 2: *t++ = (char)c; |
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47 case 1: *t++ = (char)c; |
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48 } |
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49 while (n > 8); |
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50 } |
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51 } |
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52 return s; |
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53 } |