Copyright (c) 1990 The Regents of the University of California.
All rights reserved.

This code is derived from software contributed to Berkeley by
Chris Torek.

%sccs.include.redist.man%

@(#)memcmp.3 5.2 (Berkeley) 06/24/90

C 7 memcmp - compare byte string

#include <string.h>

int
memcmp(const void *b1, const void *b2, size_t len);

Memcmp compares byte string b1 against byte string b2 , returning zero if they are identical, otherwise returning the difference between the first two differing bytes (treated as unsigned char values, so that '\e200' is greater than '\e0', e.g.). Both strings are assumed to be len bytes long. Zero-length strings are always identical. bcmp(3), strcasecmp(3), strcmp(3), strcoll(3), strxfrm(3) Memcmp conforms to ANSI X3.159-1989 (``ANSI C'').