113 lines
3.4 KiB
Groff
113 lines
3.4 KiB
Groff
.\" 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.
|
|
.\"
|
|
.\" @(#)strcoll.3 8.1 (Berkeley) 6/4/93
|
|
.\" FreeBSD: src/lib/libc/string/strcoll.3,v 1.11 2001/10/01 16:09:00 ru Exp
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd October 4, 2002
|
|
.Dt WCSCOLL 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm wcscoll
|
|
.Nd compare wide strings according to current collation
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.In wchar.h
|
|
.Ft int
|
|
.Fn wcscoll "const wchar_t *s1" "const wchar_t *s2"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn wcscoll
|
|
function compares the null-terminated strings
|
|
.Fa s1
|
|
and
|
|
.Fa s2
|
|
according to the current locale collation order.
|
|
In the
|
|
.Dq Li C
|
|
locale,
|
|
.Fn wcscoll
|
|
is equivalent to
|
|
.Fn wcscmp .
|
|
.Sh RETURN VALUES
|
|
The
|
|
.Fn wcscoll
|
|
function
|
|
returns an integer greater than, equal to, or less than 0,
|
|
if
|
|
.Fa s1
|
|
is greater than, equal to, or less than
|
|
.Fa s2 .
|
|
.Pp
|
|
No return value is reserved to indicate errors;
|
|
callers should set
|
|
.Va errno
|
|
to 0 before calling
|
|
.Fn wcscoll .
|
|
If it is non-zero upon return from
|
|
.Fn wcscoll ,
|
|
an error has occurred.
|
|
.Sh ERRORS
|
|
The
|
|
.Fn wcscoll
|
|
function will fail if:
|
|
.Bl -tag -width Er
|
|
.It Bq Er EILSEQ
|
|
An invalid wide character code was specified.
|
|
.It Bq Er ENOMEM
|
|
Cannot allocate enough memory for temporary buffers.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr setlocale 3 ,
|
|
.Xr strcoll 3 ,
|
|
.Xr wcscmp 3 ,
|
|
.Xr wcsxfrm 3
|
|
.Sh STANDARDS
|
|
The
|
|
.Fn wcscoll
|
|
function
|
|
conforms to
|
|
.St -isoC-99 .
|
|
.Sh BUGS
|
|
The current implementation of
|
|
.Fn wcscoll
|
|
only works in single-byte
|
|
.Dv LC_CTYPE
|
|
locales, and falls back to using
|
|
.Fn wcscmp
|
|
in locales with extended character sets.
|