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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 .