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	tstrnlen.c - numtools - perform numerical operations on vectors and matrices in…
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	---
	tstrnlen.c (1070B)
	---
	1 /* $OpenBSD: strnlen.c,v 1.9 2019/01/25 00:19:25 millert Exp $ …
	2
	3 /*
	4 * Copyright (c) 2010 Todd C. Miller <[email protected]>
	5 *
	6 * Permission to use, copy, modify, and distribute this software for any
	7 * purpose with or without fee is hereby granted, provided that the above
	8 * copyright notice and this permission notice appear in all copies.
	9 *
	10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANT…
	11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE F…
	13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT …
	16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	17 */
	18
	19 #include <sys/types.h>
	20
	21 #include <string.h>
	22
	23 size_t
	24 strnlen(const char *str, size_t maxlen)
	25 {
	26 const char *cp;
	27
	28 for (cp = str; maxlen != 0 && *cp != '\0'; cp++, maxlen--)
	29 ;
	30
	31 return (size_t)(cp - str);
	32 }