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.
The functionality described on this reference page is aligned with
the ISO C standard. Any conflict between the requirements described
here and the ISO C standard is unintentional. This volume of
POSIX.1‐2008 defers to the ISO C standard.
The wcsftime() function shall be equivalent to the strftime()
function, except that:
* The argument wcs points to the initial element of an array of
wide characters into which the generated output is to be placed.
* The argument maxsize indicates the maximum number of wide
characters to be placed in the output array.
* The argument format is a wide-character string and the conversion
specifications are replaced by corresponding sequences of wide
* The return value indicates the number of wide characters placed
in the output array.
If copying takes place between objects that overlap, the behavior is
If the total number of resulting wide-character codes including the
terminating null wide-character code is no more than maxsize,
wcsftime() shall return the number of wide-character codes placed
into the array pointed to by wcs, not including the terminating null
wide-character code. Otherwise, zero is returned and the contents of
the array are unspecified.
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2013 Edition, Standard for Information
Technology -- Portable Operating System Interface (POSIX), The Open
Group Base Specifications Issue 7, Copyright (C) 2013 by the
Institute of Electrical and Electronics Engineers, Inc and The Open
Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1
applied.) 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.unix.org/online.html .
Any typographical or formatting errors that appear in this page are
most likely to have been introduced during the conversion of the
source files to man page format. To report such errors, see
IEEE/The Open Group 2013 WCSFTIME(3P)