NetBSD/lib/libc/string/swab.3

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.\" Copyright (c) 1990, 1991, 1993
.\" The Regents of the University of California. All rights reserved.
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.\"
.\" Redistribution and use in source and binary forms, with or without
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.\" from: @(#)swab.3 8.1 (Berkeley) 6/4/93
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.\" $NetBSD: swab.3,v 1.6 1998/02/05 18:51:01 perry Exp $
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.\"
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.Dd June 4, 1993
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.Dt SWAB 3
.Os
.Sh NAME
.Nm swab
.Nd swap adjacent bytes
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.Sh LIBRARY
.Lb libc
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.Sh SYNOPSIS
.Fd #include <unistd.h>
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.Ft void
.Fn swab "const void *src" "void *dst" "size_t len"
.Sh DESCRIPTION
The function
.Fn swab
copies
.Fa len
bytes from the location referenced by
.Fa src
to the location referenced by
.Fa dst ,
swapping adjacent bytes.
.Pp
The argument
.Fa len
must be even number.
.Sh SEE ALSO
.Xr bzero 3 ,
.Xr memset 3
.Sh HISTORY
A
.Fn swab
function appeared in
.At v7 .