1.\" 2.\" Copyright (c) 2004 Tim J. Robbins 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.\" $FreeBSD: head/lib/libc/locale/isspecial.3 196820 2009-09-04 07:44:58Z des $ 27.\" 28.Dd March 30, 2004 29.Dt ISSPECIAL 3 30.Os 31.Sh NAME 32.Nm isspecial , 33.Nm isspecial_l 34.Nd special character test 35.Sh LIBRARY 36.Lb libc 37.Sh SYNOPSIS 38.In ctype.h 39.Ft int 40.Fn isspecial "int c" 41.In ctype.h 42.In xlocale.h 43.Ft int 44.Fn isspecial_l "int c" "locale_t loc" 45.Sh DESCRIPTION 46The 47.Fn isspecial 48function tests for a special character. 49.Pp 50The _l-suffixed version takes an explicit locale argument, whereas the 51non-suffixed version uses the current global or per-thread locale. 52.Sh RETURN VALUES 53The 54.Fn isspecial 55function returns zero if the character tests false and 56returns non-zero if the character tests true. 57.Sh SEE ALSO 58.Xr ctype 3 , 59.Xr ctype_l 3 , 60.Xr iswspecial 3 61.Xr xlocale 3 62.Sh HISTORY 63The 64.Fn isspecial 65function appeared in 66.Bx 4.4 . 67