memcmp(3) BSD Library Functions Manual memcmp(3)
NAME
memcmp -- compare byte string
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <string.h>
int
memcmp(const void *s1, const void *s2, size_t n);
DESCRIPTION
The memcmp() function compares byte string s1 against byte string s2.
Both strings are assumed to be n bytes long.
RETURN VALUES
The memcmp() function returns zero if the two strings are identical, oth-
erwise 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), wmemcmp(3)
STANDARDS
The memcmp() function conforms to ISO/IEC 9899:1990 (``ISO C90'').
BSD June 4, 1993 BSD
Mac OS X 10.8 - Generated Wed Aug 29 07:38:19 CDT 2012