WCSSPN(3P)                                          POSIX Programmer's Manual                                         WCSSPN(3P)



PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (con-
       sult the corresponding Linux manual page for details of Linux behavior), or the  interface  may  not  be  implemented  on
       Linux.

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, Copy-
       right (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.open-
       group.org/unix/online.html .



IEEE/The Open Group                                           2003                                                    WCSSPN(3P)