--- Libc/Libc-1725.40.4/string/FreeBSD/wcswidth.3
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-.\" Copyright (c) 2002 Tim J. Robbins
-.\" All rights reserved.
-.\"
-.\" 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.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
-.\"
-.\" $FreeBSD: src/lib/libc/string/wcswidth.3,v 1.2 2002/12/09 14:04:05 ru Exp $
-.\"
-.Dd August 20, 2002
-.Dt WCSWIDTH 3
-.Os
-.Sh NAME
-.Nm wcswidth ,
-.Nm wcswidth_l
-.Nd "number of column positions in wide-character string"
-.Sh LIBRARY
-.Lb libc
-.Sh SYNOPSIS
-.In wchar.h
-.Ft int
-.Fo wcswidth
-.Fa "const wchar_t *pwcs"
-.Fa "size_t n"
-.Fc
-.In wchar.h
-.In xlocale.h
-.Ft int
-.Fo wcswidth_l
-.Fa "const wchar_t *pwcs"
-.Fa "size_t n"
-.Fa "locale_t loc"
-.Fc
-.Sh DESCRIPTION
-The
-.Fn wcswidth
-function determines the number of column positions required for the first
-.Fa n
-characters of
-.Fa pwcs ,
-or until a null wide character (L'\e0') is encountered.
-.Pp
-Although the
-.Fn wcswidth
-function uses the current locale, the
-.Fn wcswidth_l
-function may be passed a locale directly. See
-.Xr xlocale 3
-for more information.
-.Sh RETURN VALUES
-The
-.Fn wcswidth
-function returns 0 if
-.Fa pwcs
-is an empty string (L""),
-\-1 if a non-printing wide character is encountered;
-otherwise, it returns the number of column positions occupied.
-.Sh SEE ALSO
-.Xr iswprint 3 ,
-.Xr wcwidth 3 ,
-.Xr xlocale 3
-.Sh STANDARDS
-The
-.Fn wcswidth
-function conforms to
-.St -p1003.1-2001 .