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MEMCMP(3)		    Library Functions Manual		     MEMCMP(3)

NAME
       memcmp -- compare byte string

LIBRARY
       Standard	C Library (libc, -lc)

SYNOPSIS
       #include	<string.h>

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

DESCRIPTION
       The  memcmp()  function compares	byte string b1 against byte string b2.
       Both strings are	assumed	to be len bytes	long.

RETURN VALUES
       The memcmp() function returns zero if the two  strings  are  identical,
       otherwise  returns the difference between the first two differing bytes
       (treated	as unsigned char values, so that `\200'	is greater than	 `\0',
       for example).  Zero-length strings are always identical.

SEE ALSO
       bcmp(3),	    strcasecmp(3),    strcmp(3),    strcoll(3),	   strxfrm(3),
       timingsafe_memcmp(3), wmemcmp(3)

STANDARDS
       The memcmp() function conforms to ISO/IEC 9899:1990 ("ISO C90").

FreeBSD	14.3			August 15, 2016			     MEMCMP(3)

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<https://man.freebsd.org/cgi/man.cgi?query=memcmp&sektion=3&manpath=FreeBSD+14.3-RELEASE+and+Ports>

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