157 lines
5.1 KiB
HTML
157 lines
5.1 KiB
HTML
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<title>wcsftime</title>
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<basefont size="3"> <a name="wcsftime"></a> <a name="tag_03_832"></a><!-- wcsftime -->
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<!--header start-->
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<center><font size="2">The Open Group Base Specifications Issue 6<br>
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IEEE Std 1003.1-2001<br>
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Copyright © 2001 The IEEE and The Open Group, All Rights reserved.</font></center>
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<!--header end-->
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<hr size="2" noshade>
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<h4><a name="tag_03_832_01"></a>NAME</h4>
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<blockquote>wcsftime - convert date and time to a wide-character string</blockquote>
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<h4><a name="tag_03_832_02"></a>SYNOPSIS</h4>
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<blockquote class="synopsis">
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<p><code><tt>#include <<a href="../basedefs/wchar.h.html">wchar.h</a>><br>
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<br>
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size_t wcsftime(wchar_t *restrict</tt> <i>wcs</i><tt>, size_t</tt> <i>maxsize</i><tt>,<br>
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const wchar_t *restrict</tt> <i>format</i><tt>, const struct tm *restrict</tt>
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<i>timeptr</i><tt>);<br>
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</tt></code></p>
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</blockquote>
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<h4><a name="tag_03_832_03"></a>DESCRIPTION</h4>
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<blockquote>
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<div class="box"><sup>[<a href="javascript:open_code('CX')">CX</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]"
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border="0"> The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the
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requirements described here and the ISO C standard is unintentional. This volume of IEEE Std 1003.1-2001 defers to
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the ISO C standard. <img src="../images/opt-end.gif" alt="[Option End]" border="0"></div>
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<p>The <i>wcsftime</i>() function shall be equivalent to the <a href="../functions/strftime.html"><i>strftime</i>()</a> function,
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except that:</p>
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<ul>
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<li>
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<p>The argument <i>wcs</i> points to the initial element of an array of wide characters into which the generated output is to be
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placed.</p>
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</li>
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<li>
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<p>The argument <i>maxsize</i> indicates the maximum number of wide characters to be placed in the output array.</p>
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</li>
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<li>
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<p>The argument <i>format</i> is a wide-character string and the conversion specifications are replaced by corresponding sequences
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of wide characters.</p>
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</li>
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<li>
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<p>The return value indicates the number of wide characters placed in the output array.</p>
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</li>
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</ul>
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<p>If copying takes place between objects that overlap, the behavior is undefined.</p>
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</blockquote>
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<h4><a name="tag_03_832_04"></a>RETURN VALUE</h4>
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<blockquote>
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<p>If the total number of resulting wide-character codes including the terminating null wide-character code is no more than
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<i>maxsize</i>, <i>wcsftime</i>() shall return the number of wide-character codes placed into the array pointed to by <i>wcs</i>,
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not including the terminating null wide-character code. Otherwise, zero is returned and the contents of the array are
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unspecified.</p>
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</blockquote>
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<h4><a name="tag_03_832_05"></a>ERRORS</h4>
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<blockquote>
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<p>No errors are defined.</p>
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</blockquote>
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<hr>
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<div class="box"><em>The following sections are informative.</em></div>
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<h4><a name="tag_03_832_06"></a>EXAMPLES</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_832_07"></a>APPLICATION USAGE</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_832_08"></a>RATIONALE</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_832_09"></a>FUTURE DIRECTIONS</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_832_10"></a>SEE ALSO</h4>
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<blockquote>
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<p><a href="strftime.html"><i>strftime</i>()</a> , the Base Definitions volume of IEEE Std 1003.1-2001, <a href=
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"../basedefs/wchar.h.html"><i><wchar.h></i></a></p>
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</blockquote>
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<h4><a name="tag_03_832_11"></a>CHANGE HISTORY</h4>
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<blockquote>
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<p>First released in Issue 4.</p>
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</blockquote>
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<h4><a name="tag_03_832_12"></a>Issue 5</h4>
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<blockquote>
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<p>Moved from ENHANCED I18N to BASE and the [ENOSYS] error is removed.</p>
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<p>Aligned with ISO/IEC 9899:1990/Amendment 1:1995 (E). Specifically, the type of the <i>format</i> argument is changed from
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<b>const char *</b> to <b>const wchar_t *</b>.</p>
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</blockquote>
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<h4><a name="tag_03_832_13"></a>Issue 6</h4>
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<blockquote>
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<p>The <i>wcsftime</i>() prototype is updated for alignment with the ISO/IEC 9899:1999 standard.</p>
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</blockquote>
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<div class="box"><em>End of informative text.</em></div>
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