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96 lines
3.8 KiB
HTML
96 lines
3.8 KiB
HTML
4 years ago
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<title>localtime (The Red Hat newlib C Library)</title>
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<meta name="description" content="localtime (The Red Hat newlib C Library)">
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<meta name="keywords" content="localtime (The Red Hat newlib C Library)">
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<link href="Document-Index.html#Document-Index" rel="index" title="Document Index">
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<link href="Document-Index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Timefns.html#Timefns" rel="up" title="Timefns">
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<link href="mktime.html#mktime" rel="next" title="mktime">
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<link href="gmtime.html#gmtime" rel="prev" title="gmtime">
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</head>
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<body lang="en">
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<a name="localtime"></a>
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<div class="header">
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<p>
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Next: <a href="mktime.html#mktime" accesskey="n" rel="next">mktime</a>, Previous: <a href="gmtime.html#gmtime" accesskey="p" rel="prev">gmtime</a>, Up: <a href="Timefns.html#Timefns" accesskey="u" rel="up">Timefns</a> [<a href="Document-Index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Document-Index.html#Document-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="localtime_002d_002d_002dconvert-time-to-local-representation"></a>
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<h3 class="section">8.6 <code>localtime</code>—convert time to local representation</h3>
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<a name="index-localtime"></a>
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<a name="index-localtime_005fr"></a>
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<p><strong>Synopsis</strong>
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</p><div class="example">
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<pre class="example">#include <time.h>
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struct tm *localtime(time_t *<var>clock</var>);
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struct tm *localtime_r(time_t *<var>clock</var>, struct tm *<var>res</var>);
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</pre></div>
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<p><strong>Description</strong><br>
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<code>localtime</code> converts the time at <var>clock</var> into local time, then
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converts its representation from the arithmetic representation to the
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traditional representation defined by <code>struct tm</code>.
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</p>
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<p><code>localtime</code> constructs the traditional time representation in static
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storage; each call to <code>gmtime</code> or <code>localtime</code> will overwrite the
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information generated by previous calls to either function.
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</p>
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<p><code>mktime</code> is the inverse of <code>localtime</code>.
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</p>
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<br>
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<p><strong>Returns</strong><br>
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A pointer to the traditional time representation (<code>struct tm</code>).
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</p>
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<br>
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<p><strong>Portability</strong><br>
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ANSI C requires <code>localtime</code>.
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</p>
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<p><code>localtime</code> requires no supporting OS subroutines.
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</p>
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<br>
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