wcsspn  -  advance in a wide-character string, skipping any of a set of
   wide characters


   #include <wchar.h>

   size_t wcsspn(const wchar_t *wcs, const wchar_t *accept);


   The wcsspn() function is the wide-character equivalent of the strspn(3)
   function.   It  determines the length of the longest initial segment of
   wcs which consists entirely of wide-characters listed  in  accept.   In
   other words, it searches for the first occurrence in the wide-character
   string wcs of a wide-character  not  contained  in  the  wide-character
   string accept.


   The  wcsspn()  function  returns  the  number of wide characters in the
   longest initial  segment  of  wcs  which  consists  entirely  of  wide-
   characters  listed  in accept.  In other words, it returns the position
   of the first occurrence in the wide-character string  wcs  of  a  wide-
   character  not  contained  in  the  wide-character  string  accept,  or
   wcslen(wcs) if there is none.


   For  an  explanation  of  the  terms  used   in   this   section,   see

   Interface  Attribute      Value   
   wcsspn()   Thread safety  MT-Safe 


   POSIX.1-2001, POSIX.1-2008, C99.


   strspn(3), wcscspn(3)


   This  page  is  part of release 4.09 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


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