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<a name="gcd_and_lcm.gcd_lcm.run_time"></a><a class="link" href="run_time.html" title="Run-time GCD & LCM Determination"> Run-time GCD & LCM
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<p>
<span class="bold"><strong>Header: </strong></span> <a href="../../../../../../../boost/math/common_factor_rt.hpp" target="_top"><boost/math/common_factor_rt.hpp></a>
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<pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">IntegerType</span> <span class="special">></span>
<span class="identifier">IntegerType</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">math</span><span class="special">::</span><span class="identifier">gcd</span><span class="special">(</span> <span class="identifier">IntegerType</span> <span class="keyword">const</span> <span class="special">&</span><span class="identifier">a</span><span class="special">,</span> <span class="identifier">IntegerType</span> <span class="keyword">const</span> <span class="special">&</span><span class="identifier">b</span> <span class="special">);</span>
<span class="keyword">template</span> <span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">IntegerType</span> <span class="special">></span>
<span class="identifier">IntegerType</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">math</span><span class="special">::</span><span class="identifier">lcm</span><span class="special">(</span> <span class="identifier">IntegerType</span> <span class="keyword">const</span> <span class="special">&</span><span class="identifier">a</span><span class="special">,</span> <span class="identifier">IntegerType</span> <span class="keyword">const</span> <span class="special">&</span><span class="identifier">b</span> <span class="special">);</span>
</pre>
<p>
The boost::math::gcd function template returns the greatest common (nonnegative)
divisor of the two integers passed to it. The boost::math::lcm function template
returns the least common (nonnegative) multiple of the two integers passed
to it. The function templates are parameterized on the function arguments'
IntegerType, which is also the return type. Internally, these function templates
use an object of the corresponding version of the gcd_evaluator and lcm_evaluator
class templates, respectively.
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<td align="right"><div class="copyright-footer">Copyright © 2001 -2002 Daryle Walker<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
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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