bcmp man page

bcmp — compare byte sequences


#include <strings.h>

int bcmp(const void *s1, const void *s2, size_t n);


The bcmp() function compares the two byte sequences s1 and s2 of length n each. If they are equal, and in particular if n is zero, bcmp() returns 0. Otherwise, it returns a nonzero result.

Return Value

The bcmp() function returns 0 if the byte sequences are equal, otherwise a nonzero result is returned.


For an explanation of the terms used in this section, see attributes(7).

Interface Attribute Value
bcmp() Thread safety MT-Safe

Conforming to

4.3BSD. This function is deprecated (marked as LEGACY in POSIX.1-2001): use memcmp(3) in new programs. POSIX.1-2008 removes the specification of bcmp().

See Also

memcmp(3), strcasecmp(3), strcmp(3), strcoll(3), strncasecmp(3), strncmp(3)


This page is part of release 4.09 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

Referenced By

bstring(3), memcmp(3), strcasecmp(3), strcmp(3), strcoll(3), strxfrm(3).

2015-03-02 Linux Programmer's Manual