man3/wcscspn.3

   1 .\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
   2 .\"
   3 .\" This is free documentation; you can redistribute it and/or
   4 .\" modify it under the terms of the GNU General Public License as
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   8 .\" References consulted:
   9 .\"   GNU glibc-2 source code and manual
  10 .\"   Dinkumware C library reference http://www.dinkumware.com/
  11 .\"   OpenGroup's Single Unix specification http://www.UNIX-systems.org/online.html
  12 .\"   ISO/IEC 9899:1999
  13 .\"
  14 .TH WCSCSPN 3  1999-07-25 "GNU" "Linux Programmer's Manual"
  15 .SH NAME
  16 wcscspn \- search a wide-character string for any of a set of wide characters
  17 .SH SYNOPSIS
  18 .nf
  19 .B #include <wchar.h>
  20 .sp
  21 .BI "size_t wcscspn(const wchar_t *" wcs ", const wchar_t *" reject );
  22 .fi
  23 .SH DESCRIPTION
  24 The \fBwcscspn\fP function is the wide-character equivalent of the \fBstrcspn\fP
  25 function. It determines the length of the longest initial segment of \fIwcs\fP
  26 which consists entirely of wide-characters not listed in \fIreject\fP. In
  27 other words, it searches for the first occurrence in the wide-character
  28 string \fIwcs\fP of any of the characters in the wide-character string
  29 \fIreject\fP.
  30 .SH "RETURN VALUE"
  31 The \fBwcscspn\fP function returns the number of wide characters in the longest
  32 initial segment of \fIwcs\fP which consists entirely of wide-characters not
  33 listed in \fIreject\fP. In other words, it returns the position of the first
  34 occurrence in the wide-character string \fIwcs\fP of any of the characters in
  35 the wide-character string \fIreject\fP, or \fIwcslen(wcs)\fP if there is none.
  36 .SH "CONFORMING TO"
  37 ISO/ANSI C, UNIX98
  38 .SH "SEE ALSO"
  39 .BR strcspn (3),
  40 .BR wcspbrk (3),
  41 .BR wcsspn (3)