23 lines
353 B
C
23 lines
353 B
C
#if !defined(lint) && defined(SCCSIDS)
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static char sccsid[] = "@(#)index.c 1.1 92/07/30 SMI"; /* from UCB 4.1 80/12/21 */
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#endif
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/*
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* Return the ptr in sp at which the character c appears;
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* NULL if not found
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*/
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#define NULL 0
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char *
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index(sp, c)
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register char *sp, c;
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{
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do {
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if (*sp == c)
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return (sp);
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} while (*sp++);
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return (NULL);
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}
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