Ultrix-3.1/src/libc/sysV/memchr.c

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/**********************************************************************
 *   Copyright (c) Digital Equipment Corporation 1984, 1985, 1986.    *
 *   All Rights Reserved. 					      *
 *   Reference "/usr/src/COPYRIGHT" for applicable restrictions.      *
 **********************************************************************/

/*	SCCSID: @(#)memchr.c	3.0	4/22/86	*/
/*	(System 5)	1.1	*/
/*LINTLIBRARY*/
/*
 * Return the ptr in sp at which the character c appears;
 *   NULL if not found in n chars; don't stop at \0.
 */
char *
memchr(sp, c, n)
register char *sp, c;
register int n;
{
	while (--n >= 0)
		if (*sp++ == c)
			return (--sp);
	return (0);
}