The wcsncat() function shall append not more than n wide-character
codes (a null wide-character code and
wide-character codes that follow it are not appended) from the array
pointed to by ws2 to the end of the wide-character
string pointed to by ws1. The initial wide-character code of
ws2 shall overwrite the null wide-character code at the
end of ws1. A terminating null wide-character code shall always
be appended to the result. If copying takes place between
objects that overlap, the behavior is undefined.
The wcsncat() function shall return ws1; no return value
is reserved to indicate an error.
No errors are defined.
The following sections are informative.
wcscat() , 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