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<div class="titlepage"><div><div><h3 class="title">
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<a name="math_toolkit.high_precision.float128"></a><a class="link" href="float128.html" title="Using with GCC's __float128 datatype">Using with GCC's
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__float128 datatype</a>
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</h3></div></div></div>
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<p>
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At present support for GCC's native <code class="computeroutput"><span class="identifier">__float128</span></code>
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datatype is extremely limited: the numeric constants will all work with that
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type, and that's about it. If you want to use the distributions or special
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functions then you will need to provide your own wrapper header that:
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<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
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<li class="listitem">
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Provides <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">numeric_limits</span><span class="special"><</span><span class="identifier">__float128</span><span class="special">></span></code>
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support.
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</li>
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<li class="listitem">
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Provides overloads of the standard library math functions for type <code class="computeroutput"><span class="identifier">__float128</span></code> and which forward to the
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libquadmath equivalents.
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</li>
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</ul></div>
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Ultimately these facilities should be provided by GCC and <code class="computeroutput"><span class="identifier">libstdc</span><span class="special">++</span></code>.
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Agrawal, Anton Bikineev, Paul A. Bristow, Marco Guazzone, Christopher Kormanyos,
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Hubert Holin, Bruno Lalande, John Maddock, Jeremy Murphy, Matthew Pulver, Johan
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Råde, Gautam Sewani, Benjamin Sobotta, Nicholas Thompson, Thijs van den Berg,
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Daryle Walker and Xiaogang Zhang<p>
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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