1.\" $OpenBSD: wcsspn.3,v 1.3 2013/06/05 03:39:23 tedu Exp $ 2.\" 3.\" Copyright (c) 1990, 1991 The Regents of the University of California. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to Berkeley by 7.\" Chris Torek and the American National Standards Committee X3, 8.\" on Information Processing Systems. 9.\" 10.\" Redistribution and use in source and binary forms, with or without 11.\" modification, are permitted provided that the following conditions 12.\" are met: 13.\" 1. Redistributions of source code must retain the above copyright 14.\" notice, this list of conditions and the following disclaimer. 15.\" 2. Redistributions in binary form must reproduce the above copyright 16.\" notice, this list of conditions and the following disclaimer in the 17.\" documentation and/or other materials provided with the distribution. 18.\" 3. Neither the name of the University nor the names of its contributors 19.\" may be used to endorse or promote products derived from this software 20.\" without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.Dd $Mdocdate: June 5 2013 $ 35.Dt WCSSPN 3 36.Os 37.Sh NAME 38.Nm wcsspn 39.Nd span a wide string 40.Sh SYNOPSIS 41.In wchar.h 42.Ft size_t 43.Fn wcsspn "const wchar_t *s" "const wchar_t *charset" 44.Sh DESCRIPTION 45The 46.Fn wcsspn 47function spans the initial part of the wide string 48.Fa s 49as long as the wide characters from 50.Fa s 51occur in the wide string 52.Fa charset . 53.Sh RETURN VALUES 54The 55.Fn wcsspn 56function returns the number of wide characters spanned. 57.Sh SEE ALSO 58.Xr strspn 3 , 59.Xr wcschr 3 , 60.Xr wcscspn 3 , 61.Xr wcspbrk 3 , 62.Xr wcsrchr 3 , 63.Xr wcsstr 3 , 64.Xr wcstok 3 , 65.Xr wmemchr 3 66.Sh STANDARDS 67The 68.Fn wcsspn 69function conforms to 70.St -isoC-99 71and was first introduced in 72.St -isoC-amd1 . 73.Sh HISTORY 74The 75.Fn wcsspn 76function was ported from 77.Nx 78and first appeared in 79.Ox 3.8 . 80