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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 (consult 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-char-
       acter 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 .

IEEE/The Open Group                  2003                           WCSSPN(3P)