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Linux 2.6 - man page for wcscspn (linux section 3)

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 3.55 of the Linux man-pages project.  A description of the
       project,    and	  information	 about	  reporting    bugs,	can    be    found     at
       http://www.kernel.org/doc/man-pages/.

GNU					    2013-12-02				       WCSCSPN(3)


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