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46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
/* Copyright (C) 1991, 1995, 1997, 1999, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <string.h>
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#undef __memccpy
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#undef memccpy
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/* Copy no more than N bytes of SRC to DEST, stopping when C is found.
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Return the position in DEST one byte past where C was copied, or
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NULL if C was not found in the first N bytes of SRC. */
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void *
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__memccpy (dest, src, c, n)
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void *dest;
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const void *src;
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int c;
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size_t n;
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{
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register const char *s = src;
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register char *d = dest;
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register const char x = c;
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register size_t i = n;
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while (i-- > 0)
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if ((*d++ = *s++) == x)
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return d;
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return NULL;
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}
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weak_alias (__memccpy, memccpy)
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