BCMP(3)                FreeBSD Library Functions Manual                BCMP(3)

NAME
     bcmp - compare byte string

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <strings.h>

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

DESCRIPTION
     The bcmp() function compares byte string b1 against byte string b2,
     returning zero if they are identical, non-zero otherwise.  Both strings
     are assumed to be len bytes long.  Zero-length strings are always
     identical.

     The strings may overlap.

SEE ALSO
     memcmp(3), strcasecmp(3), strcmp(3), strcoll(3), strxfrm(3),
     timingsafe_bcmp(3)

HISTORY
     A bcmp() function first appeared in 4.2BSD.  Its prototype existed
     previously in <string.h> before it was moved to <strings.h> for IEEE Std
     1003.1-2001 ("POSIX.1") compliance.

FreeBSD 13.1-RELEASE-p6         August 15, 2016        FreeBSD 13.1-RELEASE-p6