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Power 6/32 Unix version 1.2b

/* @(#)index.c	4.1 (Berkeley) 12/21/80 */
/*
 * Return the ptr in sp at which the character c appears;
 * NULL if not found
 */

#define	NULL	0

char *
index(sp, c)
register char *sp, c;
{
	do {
		if (*sp == c)
			return(sp);
	} while (*sp++);
	return(NULL);
}

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