Libc-498.tar.gz

[apple/libc.git] / string / bcmp.3

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.\"     @(#)bcmp.3	8.1 (Berkeley) 6/4/93
.\" $FreeBSD: src/lib/libc/string/bcmp.3,v 1.10 2003/09/08 19:57:15 ru Exp $
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.Dd June 4, 1993
.Dt BCMP 3
.Os
.Sh NAME
.Nm bcmp
.Nd compare byte string
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In strings.h
.Ft int
.Fn bcmp "const void *s1" "const void *s2" "size_t n"
.Sh DESCRIPTION
The
.Fn bcmp
function
compares byte string
.Fa s1
against byte string
.Fa s2 ,
returning zero if they are identical, non-zero otherwise.
Both strings are assumed to be
.Fa n
bytes long.
Zero-length strings are always identical.
.Pp
The strings may overlap.
.Sh SEE ALSO
.Xr memcmp 3 ,
.Xr strcasecmp 3 ,
.Xr strcmp 3 ,
.Xr strcoll 3 ,
.Xr strxfrm 3
.Sh HISTORY
A
.Fn bcmp
function first appeared in
.Bx 4.2 .
Its prototype existed previously in
.In string.h
before it was moved to
.In strings.h
for
.St -p1003.1-2001
compliance.