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92 lines
3.9 KiB
HTML
92 lines
3.9 KiB
HTML
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<title>__int128 (Using the GNU Compiler Collection (GCC))</title>
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<a name="g_t_005f_005fint128"></a>
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<div class="header">
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<p>
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Next: <a href="Long-Long.html#Long-Long" accesskey="n" rel="next">Long Long</a>, Previous: <a href="Conditionals.html#Conditionals" accesskey="p" rel="prev">Conditionals</a>, Up: <a href="C-Extensions.html#C-Extensions" accesskey="u" rel="up">C Extensions</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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<hr>
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<a name="g_t128_002dbit-Integers"></a>
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<h3 class="section">6.8 128-bit Integers</h3>
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<a name="index-_005f_005fint128-data-types"></a>
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<p>As an extension the integer scalar type <code>__int128</code> is supported for
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targets which have an integer mode wide enough to hold 128 bits.
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Simply write <code>__int128</code> for a signed 128-bit integer, or
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<code>unsigned __int128</code> for an unsigned 128-bit integer. There is no
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support in GCC for expressing an integer constant of type <code>__int128</code>
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for targets with <code>long long</code> integer less than 128 bits wide.
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