WCSNCPY(P) POSIX Programmer's Manual WCSNCPY(P)NAMEwcsncpy - copy part of a wide-character string
SYNOPSIS
#include <wchar.h>
wchar_t *wcsncpy(wchar_t *restrict ws1, const wchar_t *restrict ws2,
size_t n);
DESCRIPTION
The wcsncpy() function shall copy not more than n wide-character codes
(wide-character codes that follow a null wide-character code are not
copied) from the array pointed to by ws2 to the array pointed to by
ws1. If copying takes place between objects that overlap, the behavior
is undefined.
If the array pointed to by ws2 is a wide-character string that is
shorter than n wide-character codes, null wide-character codes shall be
appended to the copy in the array pointed to by ws1, until n wide-char‐
acter codes in all are written.
RETURN VALUE
The wcsncpy() function shall return ws1; no return value is reserved to
indicate an error.
ERRORS
No errors are defined.
The following sections are informative.
EXAMPLES
None.
APPLICATION USAGE
If there is no null wide-character code in the first n wide-character
codes of the array pointed to by ws2, the result is not null-termi‐
nated.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSOwcscpy() , 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 WCSNCPY(P)
