diff options
Diffstat (limited to 'lib/libc/string/strspn.3')
-rw-r--r-- | lib/libc/string/strspn.3 | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/lib/libc/string/strspn.3 b/lib/libc/string/strspn.3 new file mode 100644 index 0000000..72a1d32 --- /dev/null +++ b/lib/libc/string/strspn.3 @@ -0,0 +1,84 @@ +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" Chris Torek and the American National Standards Committee X3, +.\" on Information Processing Systems. +.\" +.\" 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. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. +.\" +.\" @(#)strspn.3 8.1 (Berkeley) 6/4/93 +.\" $FreeBSD$ +.\" +.Dd June 4, 1993 +.Dt STRSPN 3 +.Os +.Sh NAME +.Nm strspn +.Nd span a string +.Sh LIBRARY +.Lb libc +.Sh SYNOPSIS +.In string.h +.Ft size_t +.Fn strspn "const char *s" "const char *charset" +.Sh DESCRIPTION +The +.Fn strspn +function +spans the initial part of the null-terminated string +.Fa s +as long as the characters from +.Fa s +occur in the null-terminated string +.Fa charset . +In other words, it computes the string array index in +.Fa s +of the first character of +.Fa s +which is not in +.Fa charset , +else the index of the first null character. +.Sh RETURN VALUES +The +.Fn strspn +function +returns the number of characters spanned. +.Sh SEE ALSO +.Xr memchr 3 , +.Xr strchr 3 , +.Xr strcspn 3 , +.Xr strpbrk 3 , +.Xr strrchr 3 , +.Xr strsep 3 , +.Xr strstr 3 , +.Xr strtok 3 , +.Xr wcsspn 3 +.Sh STANDARDS +The +.Fn strspn +function +conforms to +.St -isoC . |