memcmp(9) [netbsd man page]

MEMCMP(9)						   BSD Kernel Developer's Manual						 MEMCMP(9)

NAME

     memcmp -- compare byte string

SYNOPSIS

     #include <sys/systm.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 '', for example).  Zero-length strings are always identical.

STANDARDS

     The memcmp() function conforms to ANSI X3.159-1989 (``ANSI C89'').

BSD
								   July 7, 2001 							       BSD

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, otherwise returns the difference between the first two differing bytes
     (treated as unsigned char values, so that '200' is greater than '', for example).  Zero-length strings are always identical.  This behav-
     ior is not required by C and portable code should only depend on the sign of the returned value.

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