1*2fe8fb19SBen Gras.\" Copyright (c) 1990, 1991, 1993 2*2fe8fb19SBen Gras.\" The Regents of the University of California. All rights reserved. 3*2fe8fb19SBen Gras.\" 4*2fe8fb19SBen Gras.\" This code is derived from software contributed to Berkeley by 5*2fe8fb19SBen Gras.\" Chris Torek and the American National Standards Committee X3, 6*2fe8fb19SBen Gras.\" on Information Processing Systems. 7*2fe8fb19SBen Gras.\" 8*2fe8fb19SBen Gras.\" Redistribution and use in source and binary forms, with or without 9*2fe8fb19SBen Gras.\" modification, are permitted provided that the following conditions 10*2fe8fb19SBen Gras.\" are met: 11*2fe8fb19SBen Gras.\" 1. Redistributions of source code must retain the above copyright 12*2fe8fb19SBen Gras.\" notice, this list of conditions and the following disclaimer. 13*2fe8fb19SBen Gras.\" 2. Redistributions in binary form must reproduce the above copyright 14*2fe8fb19SBen Gras.\" notice, this list of conditions and the following disclaimer in the 15*2fe8fb19SBen Gras.\" documentation and/or other materials provided with the distribution. 16*2fe8fb19SBen Gras.\" 3. Neither the name of the University nor the names of its contributors 17*2fe8fb19SBen Gras.\" may be used to endorse or promote products derived from this software 18*2fe8fb19SBen Gras.\" without specific prior written permission. 19*2fe8fb19SBen Gras.\" 20*2fe8fb19SBen Gras.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21*2fe8fb19SBen Gras.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22*2fe8fb19SBen Gras.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23*2fe8fb19SBen Gras.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24*2fe8fb19SBen Gras.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25*2fe8fb19SBen Gras.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26*2fe8fb19SBen Gras.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27*2fe8fb19SBen Gras.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28*2fe8fb19SBen Gras.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29*2fe8fb19SBen Gras.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30*2fe8fb19SBen Gras.\" SUCH DAMAGE. 31*2fe8fb19SBen Gras.\" 32*2fe8fb19SBen Gras.\" from: @(#)strcspn.3 8.1 (Berkeley) 6/4/93 33*2fe8fb19SBen Gras.\" $NetBSD: strcspn.3,v 1.10 2006/10/16 08:48:45 wiz Exp $ 34*2fe8fb19SBen Gras.\" 35*2fe8fb19SBen Gras.Dd August 11, 2002 36*2fe8fb19SBen Gras.Dt STRCSPN 3 37*2fe8fb19SBen Gras.Os 38*2fe8fb19SBen Gras.Sh NAME 39*2fe8fb19SBen Gras.Nm strcspn 40*2fe8fb19SBen Gras.Nd span the complement of a string 41*2fe8fb19SBen Gras.Sh LIBRARY 42*2fe8fb19SBen Gras.Lb libc 43*2fe8fb19SBen Gras.Sh SYNOPSIS 44*2fe8fb19SBen Gras.In string.h 45*2fe8fb19SBen Gras.Ft size_t 46*2fe8fb19SBen Gras.Fn strcspn "const char *s" "const char *charset" 47*2fe8fb19SBen Gras.Sh DESCRIPTION 48*2fe8fb19SBen GrasThe 49*2fe8fb19SBen Gras.Fn strcspn 50*2fe8fb19SBen Grasfunction 51*2fe8fb19SBen Grasspans the initial part of the nul-terminated string 52*2fe8fb19SBen Gras.Fa s 53*2fe8fb19SBen Grasas long as the characters from 54*2fe8fb19SBen Gras.Fa s 55*2fe8fb19SBen Grasdo not occur in string 56*2fe8fb19SBen Gras.Fa charset 57*2fe8fb19SBen Gras(it 58*2fe8fb19SBen Grasspans the 59*2fe8fb19SBen Gras.Em complement 60*2fe8fb19SBen Grasof 61*2fe8fb19SBen Gras.Fa charset ) . 62*2fe8fb19SBen Gras.Sh RETURN VALUES 63*2fe8fb19SBen GrasThe 64*2fe8fb19SBen Gras.Fn strcspn 65*2fe8fb19SBen Grasfunction 66*2fe8fb19SBen Grasreturns the number of characters spanned. 67*2fe8fb19SBen Gras.Sh EXAMPLES 68*2fe8fb19SBen GrasThe following call to 69*2fe8fb19SBen Gras.Fn strcspn 70*2fe8fb19SBen Graswill return 3, since the first three characters of string 71*2fe8fb19SBen Gras.Fa s 72*2fe8fb19SBen Grasdo not occur in string 73*2fe8fb19SBen Gras.Fa charset : 74*2fe8fb19SBen Gras.Bd -literal -offset indent 75*2fe8fb19SBen Graschar *s = "foobar"; 76*2fe8fb19SBen Graschar *charset = "bar"; 77*2fe8fb19SBen Grassize_t span; 78*2fe8fb19SBen Gras 79*2fe8fb19SBen Grasspan = strcspn(s, charset); 80*2fe8fb19SBen Gras.Ed 81*2fe8fb19SBen Gras.Sh SEE ALSO 82*2fe8fb19SBen Gras.Xr index 3 , 83*2fe8fb19SBen Gras.Xr memchr 3 , 84*2fe8fb19SBen Gras.Xr rindex 3 , 85*2fe8fb19SBen Gras.Xr strchr 3 , 86*2fe8fb19SBen Gras.Xr strpbrk 3 , 87*2fe8fb19SBen Gras.Xr strrchr 3 , 88*2fe8fb19SBen Gras.Xr strsep 3 , 89*2fe8fb19SBen Gras.Xr strspn 3 , 90*2fe8fb19SBen Gras.Xr strstr 3 , 91*2fe8fb19SBen Gras.Xr strtok 3 92*2fe8fb19SBen Gras.Sh STANDARDS 93*2fe8fb19SBen GrasThe 94*2fe8fb19SBen Gras.Fn strcspn 95*2fe8fb19SBen Grasfunction 96*2fe8fb19SBen Grasconforms to 97*2fe8fb19SBen Gras.St -ansiC . 98