b6cbf7203b
This patch imports the unmodified current version of NetBSD libc. The NetBSD includes are in /nbsd_include, while the libc code itself is split between lib/nbsd_libc and common/lib/libc.
107 lines
3.6 KiB
Groff
107 lines
3.6 KiB
Groff
.\" $NetBSD: wcsxfrm.3,v 1.4 2010/12/16 17:42:27 wiz Exp $
|
|
.\"
|
|
.\" Copyright (c) 1990, 1991, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" This code is derived from software contributed to Berkeley by
|
|
.\" Chris Torek and the American National Standards Committee X3,
|
|
.\" on Information Processing Systems.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the University of
|
|
.\" California, Berkeley and its contributors.
|
|
.\" 4. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" @(#)strxfrm.3 8.1 (Berkeley) 6/4/93
|
|
.\" FreeBSD: src/lib/libc/string/strxfrm.3,v 1.16 2002/09/06 11:24:06 tjr Exp
|
|
.\" FreeBSD: /repoman/r/ncvs/src/lib/libc/string/wcsxfrm.3,v 1.2 2002/12/09 14:04:05 ru Exp
|
|
.\"
|
|
.Dd October 13, 2006
|
|
.Dt WCSXFRM 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm wcsxfrm
|
|
.Nd transform a wide string under locale
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.In wchar.h
|
|
.Ft size_t
|
|
.Fn wcsxfrm "wchar_t * restrict dst" "const wchar_t * restrict src" "size_t n"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn wcsxfrm
|
|
function transforms a nul-terminated wide-character string pointed to by
|
|
.Fa src
|
|
according to the current locale collation order then copies the
|
|
transformed string into
|
|
.Fa dst .
|
|
No more than
|
|
.Fa n
|
|
wide characters are copied into
|
|
.Fa dst ,
|
|
including the terminating nul character added.
|
|
If
|
|
.Fa n
|
|
is set to 0
|
|
(it helps to determine an actual size needed for transformation),
|
|
.Fa dst
|
|
is permitted to be a null pointer.
|
|
.Pp
|
|
Comparing two strings using
|
|
.Fn wcscmp
|
|
after
|
|
.Fn wcsxfrm
|
|
is equivalent to comparing two original strings with
|
|
.Fn wcscoll .
|
|
.Sh RETURN VALUES
|
|
Upon successful completion,
|
|
.Fn wcsxfrm
|
|
returns the length of the transformed string not including
|
|
the terminating nul character.
|
|
If this value is
|
|
.Fa n
|
|
or more, the contents of
|
|
.Fa dst
|
|
are indeterminate.
|
|
.Sh SEE ALSO
|
|
.Xr setlocale 3 ,
|
|
.Xr strxfrm 3 ,
|
|
.Xr wcscmp 3 ,
|
|
.Xr wcscoll 3
|
|
.Sh STANDARDS
|
|
The
|
|
.Fn wcsxfrm
|
|
function conforms to
|
|
.St -isoC-99 .
|
|
.Sh BUGS
|
|
The current implementation of
|
|
.Fn wcsxfrm
|
|
function disregards
|
|
.Dv LC_COLLATE
|
|
locales, and falls back to using the
|
|
.Fn wcsncpy
|
|
function.
|