WCSCSPN(3)                          Linux Programmer's Manual                          WCSCSPN(3)



NAME
       wcscspn - search a wide-character string for any of a set of wide characters

SYNOPSIS
       #include <wchar.h>

       size_t wcscspn(const wchar_t *wcs, const wchar_t *reject);

DESCRIPTION
       The  wcscspn()  function  is the wide-character equivalent of the strcspn(3) function.  It
       determines the length of the longest initial segment of wcs  which  consists  entirely  of
       wide-characters  not  listed  in reject.  In other words, it searches for the first occur‐
       rence in the wide-character string wcs of any of  the  characters  in  the  wide-character
       string reject.

RETURN VALUE
       The  wcscspn()  function returns the number of wide characters in the longest initial seg‐
       ment of wcs which consists entirely of wide-characters not listed  in  reject.   In  other
       words, it returns the position of the first occurrence in the wide-character string wcs of
       any of the characters in the wide-character string reject,  or  wcslen(wcs)  if  there  is
       none.

ATTRIBUTES
   Multithreading (see pthreads(7))
       The wcscspn() function is thread-safe.

CONFORMING TO
       C99.

SEE ALSO
       strcspn(3), wcspbrk(3), wcsspn(3)

COLOPHON
       This  page  is  part of release 3.74 of the Linux man-pages project.  A description of the
       project, information about reporting bugs, and the latest version of  this  page,  can  be
       found at http://www.kernel.org/doc/man-pages/.



GNU                                         2013-12-02                                 WCSCSPN(3)