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FreeBSD 11.0 - man page for bcmp (freebsd section 3)

BCMP(3) 						   BSD 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)
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.
BSD
June 4, 1993 BSD

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