1.\" Copyright (c) 2002 Tim J. Robbins 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD: head/lib/libc/locale/wctype.3 163314 2006-10-13 16:11:12Z ru $ 26.\" 27.Dd March 27, 2004 28.Dt WCTYPE 3 29.Os 30.Sh NAME 31.Nm iswctype , wctype 32.Nd "wide character class functions" 33.Sh LIBRARY 34.Lb libc 35.Sh SYNOPSIS 36.In wctype.h 37.Ft int 38.Fn iswctype "wint_t wc" "wctype_t charclass" 39.Ft wctype_t 40.Fn wctype "const char *property" 41.Sh DESCRIPTION 42The 43.Fn wctype 44function returns a value of type 45.Vt wctype_t 46which represents the requested wide character class and 47may be used as the second argument for calls to 48.Fn iswctype . 49.Pp 50The following character class names are recognised: 51.Bl -column -offset indent ".Li alnum" ".Li cntrl" ".Li ideogram" ".Li print" ".Li space" 52.It Li "alnum cntrl ideogram print space xdigit" 53.It Li "alpha digit lower punct special" 54.It Li "blank graph phonogram rune upper" 55.El 56.Pp 57The 58.Fn iswctype 59function checks whether the wide character 60.Fa wc 61is in the character class 62.Fa charclass . 63.Sh RETURN VALUES 64The 65.Fn iswctype 66function returns non-zero if and only if 67.Fa wc 68has the property described by 69.Fa charclass , 70or 71.Fa charclass 72is zero. 73.Pp 74The 75.Fn wctype 76function returns 0 if 77.Fa property 78is invalid, otherwise it returns a value of type 79.Vt wctype_t 80that can be used in subsequent calls to 81.Fn iswctype . 82.Sh EXAMPLES 83Reimplement 84.Xr iswalpha 3 85in terms of 86.Fn iswctype 87and 88.Fn wctype : 89.Bd -literal -offset indent 90int 91myiswalpha(wint_t wc) 92{ 93 return (iswctype(wc, wctype("alpha"))); 94} 95.Ed 96.Sh SEE ALSO 97.Xr ctype 3 , 98.Xr nextwctype 3 99.Sh STANDARDS 100The 101.Fn iswctype 102and 103.Fn wctype 104functions conform to 105.St -p1003.1-2001 . 106The 107.Dq Li ideogram , 108.Dq Li phonogram , 109.Dq Li special , 110and 111.Dq Li rune 112character classes are extensions. 113.Sh HISTORY 114The 115.Fn iswctype 116and 117.Fn wctype 118functions first appeared in 119.Fx 5.0 . 120