NAME

       wcsspn - get the length of a wide substring

SYNOPSIS

       #include <wchar.h>

       size_t wcsspn(const wchar_t *ws1, const wchar_t *ws2);

DESCRIPTION

       The wcsspn() function shall compute the length (in wide characters) of the maximum initial
       segment of the wide-character string pointed to by ws1 which consists  entirely  of  wide-
       character codes from the wide-character string pointed to by ws2.

RETURN VALUE

       The  wcsspn()  function shall return the length of the initial substring of ws1; no return
       value is reserved to indicate an error.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       wcscspn() , the Base Definitions volume of IEEE Std 1003.1-2001, <wchar.h>

COPYRIGHT

       Portions of this text are reprinted and  reproduced  in  electronic  form  from  IEEE  Std
       1003.1,  2003  Edition,  Standard  for Information Technology -- Portable Operating System
       Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003  by
       the  Institute  of  Electrical  and  Electronics Engineers, Inc and The Open Group. In the
       event of any discrepancy between this version and the original IEEE  and  The  Open  Group
       Standard,  the  original  IEEE  and  The  Open Group Standard is the referee document. The
       original Standard can be obtained online at http://www.opengroup.org/unix/online.html .