22 lines
445 B
C
22 lines
445 B
C
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/*
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* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
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* See the copyright notice in the ACK home directory, in the file "Copyright".
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*/
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/* $Header$ */
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#include <string.h>
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void *
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memchr(const void *s, int c, register size_t n)
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{
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register unsigned char *s1 = (unsigned char *)s;
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unsigned char c1 = (unsigned char) c;
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while (n > 0) {
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n--;
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if (*s1++ == c1)
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return (void *) --s1;
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}
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return (void *) NULL;
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}
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