The wcsstr() function shall locate the first occurrence in the
wide-character string pointed to by ws1 of the
sequence of wide characters (excluding the terminating null wide character)
in the wide-character string pointed to by
Upon successful completion, wcsstr() shall return a pointer
to the located wide-character string, or a null pointer if
the wide-character string is not found.
If ws2 points to a wide-character string with zero length, the
function shall return ws1.
No errors are defined.
The following sections are informative.
wcschr() , the Base Definitions volume of IEEE Std 1003.1-2001,
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