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<a name="boost_multiprecision.tut.ints"></a><a class="link" href="ints.html" title="Integer Types">Integer Types</a>
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<p>
The following back-ends provide integer arithmetic:
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Backend Type
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Header
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Radix
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Dependencies
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Pros
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Cons
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<p>
<code class="computeroutput"><span class="identifier">cpp_int</span></code>
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<p>
boost/multiprecision/cpp_int.hpp
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2
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None
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<p>
Very versatile, Boost licensed, all C++ integer type which support
both <a href="http://en.wikipedia.org/wiki/Arbitrary-precision_arithmetic" target="_top">arbitrary
precision</a> and fixed precision integer types.
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<p>
Slower than <a href="http://gmplib.org" target="_top">GMP</a>, though
typically not as slow as <a href="http://libtom.net" target="_top">libtommath</a>
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<p>
<code class="computeroutput"><span class="identifier">gmp_int</span></code>
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<p>
boost/multiprecision/gmp.hpp
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2
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<a href="http://gmplib.org" target="_top">GMP</a>
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Very fast and efficient back-end.
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Dependency on GNU licensed <a href="http://gmplib.org" target="_top">GMP</a>
library.
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<code class="computeroutput"><span class="identifier">tom_int</span></code>
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boost/multiprecision/tommath.hpp
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2
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<a href="http://libtom.net" target="_top">libtommath</a>
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Public domain back-end with no licence restrictions.
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Slower than <a href="http://gmplib.org" target="_top">GMP</a>.
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