WCSFTIME - Online Linux Manual PageSection : 3P
Updated : 2017
Source : IEEE/The Open Group
Note : POSIX Programmer's Manual
PROLOGThis 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.
NAMEwcsftime — convert date and time to a wide-character string
SYNOPSIS#include <wchar.h>
size_t wcsftime(wchar_t *restrict wcs, size_t maxsize,
const wchar_t *restrict format, const struct tm *restrict timeptr);
DESCRIPTIONThe 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.1‐2017 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 characters. It is unspecified whether an encoding error occurs if the format string contains wchar_t values that do not correspond to members of the character set of the current locale. * Field widths specify the number of wide characters instead of the number of bytes. * 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 undefined.
RETURN VALUEIf 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.
ERRORSNo errors are defined. The following sections are informative.
EXAMPLESNone.
APPLICATION USAGENone.
RATIONALENone.
FUTURE DIRECTIONSNone.
SEE ALSOstrftime() The Base Definitions volume of POSIX.1‐2017, <wchar.h>
COPYRIGHTPortions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1-2017, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, 2018 Edition, Copyright (C) 2018 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 . 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 https://www.kernel.org/doc/man-pages/reporting_bugs.html . 0
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