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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
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<a name="boost_units.Utilities"></a><a class="link" href="Utilities.html" title="Utilities">Utilities</a>
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</h2></div></div></div>
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<div class="toc"><dl class="toc">
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<dt><span class="section"><a href="Utilities.html#boost_units.Utilities.Metaprogramming_Classes">Metaprogramming
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Classes</a></span></dt>
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<dt><span class="section"><a href="Utilities.html#boost_units.Utilities.Metaprogramming_Predicates">Metaprogramming
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Predicates</a></span></dt>
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</dl></div>
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<p>
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Relatively complete SI and CGS unit systems are provided in <code class="computeroutput"><a class="link" href="Reference.html#header.boost.units.systems.si_hpp" title="Header <boost/units/systems/si.hpp>">boost/units/systems/si.hpp</a></code>
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and <code class="computeroutput"><a class="link" href="Reference.html#header.boost.units.systems.cgs_hpp" title="Header <boost/units/systems/cgs.hpp>">boost/units/systems/cgs.hpp</a></code>,
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respectively.
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</p>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="boost_units.Utilities.Metaprogramming_Classes"></a><a class="link" href="Utilities.html#boost_units.Utilities.Metaprogramming_Classes" title="Metaprogramming Classes">Metaprogramming
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Classes</a>
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</h3></div></div></div>
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<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">long</span> <span class="identifier">N</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">ordinal</span><span class="special"><</span><span class="identifier">N</span><span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span><span class="keyword">typename</span> <span class="identifier">V</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">get_tag</span><span class="special"><</span> <span class="identifier">dim</span><span class="special"><</span><span class="identifier">T</span><span class="special">,</span><span class="identifier">V</span><span class="special">></span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span><span class="keyword">typename</span> <span class="identifier">V</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">get_value</span><span class="special"><</span> <span class="identifier">dim</span><span class="special"><</span><span class="identifier">T</span><span class="special">,</span><span class="identifier">V</span><span class="special">></span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">S</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">DT</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">get_system_tag_of_dim</span><span class="special"><</span><span class="identifier">S</span><span class="special">,</span><span class="identifier">DT</span><span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Seq</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">make_dimension_list</span><span class="special"><</span><span class="identifier">Seq</span><span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">DT</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">fundamental_dimension</span><span class="special"><</span><span class="identifier">DT</span><span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">DT1</span><span class="special">,</span><span class="keyword">int</span> <span class="identifier">E1</span><span class="special">,...></span> <span class="keyword">struct</span> <span class="identifier">composite_dimension</span><span class="special"><</span><span class="identifier">DT1</span><span class="special">,</span><span class="identifier">E1</span><span class="special">,...>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">Dim</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">System</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">get_dimension</span><span class="special"><</span> <span class="identifier">unit</span><span class="special"><</span><span class="identifier">Dim</span><span class="special">,</span><span class="identifier">System</span><span class="special">></span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">Unit</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">Y</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">get_dimension</span><span class="special"><</span> <span class="identifier">quantity</span><span class="special"><</span><span class="identifier">Unit</span><span class="special">,</span><span class="identifier">Y</span><span class="special">></span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">Dim</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">System</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">get_system</span><span class="special"><</span> <span class="identifier">unit</span><span class="special"><</span><span class="identifier">Dim</span><span class="special">,</span><span class="identifier">System</span><span class="special">></span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">Unit</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">Y</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">get_system</span> <span class="identifier">quantity</span><span class="special"><</span><span class="identifier">Unit</span><span class="special">,</span><span class="identifier">Y</span><span class="special">></span> <span class="special">>;</span>
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<span class="keyword">struct</span> <span class="identifier">dimensionless_type</span><span class="special">;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">System</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">dimensionless_unit</span><span class="special"><</span><span class="identifier">System</span><span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">System</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">Y</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">dimensionless_quantity</span><span class="special"><</span><span class="identifier">System</span><span class="special">,</span><span class="identifier">Y</span><span class="special">>;</span>
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<span class="keyword">struct</span> <span class="identifier">implicitly_convertible</span><span class="special">;</span>
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<span class="keyword">struct</span> <span class="identifier">trivial_conversion</span><span class="special">;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">S1</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">S2</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">base_unit_converter</span><span class="special"><</span><span class="identifier">T</span><span class="special">,</span><span class="identifier">S1</span><span class="special">,</span><span class="identifier">S2</span><span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">Q1</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">Q2</span><span class="special">></span> <span class="keyword">class</span> <span class="identifier">conversion_helper</span><span class="special"><</span><span class="identifier">Q1</span><span class="special">,</span><span class="identifier">Q2</span><span class="special">>;</span>
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</pre>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="boost_units.Utilities.Metaprogramming_Predicates"></a><a class="link" href="Utilities.html#boost_units.Utilities.Metaprogramming_Predicates" title="Metaprogramming Predicates">Metaprogramming
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Predicates</a>
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</h3></div></div></div>
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<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span><span class="keyword">typename</span> <span class="identifier">V</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">is_dim</span><span class="special"><</span> <span class="identifier">dim</span><span class="special"><</span><span class="identifier">T</span><span class="special">,</span><span class="identifier">V</span><span class="special">></span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span><span class="keyword">typename</span> <span class="identifier">V</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">is_empty_dim</span><span class="special"><</span> <span class="identifier">dim</span><span class="special"><</span><span class="identifier">T</span><span class="special">,</span><span class="identifier">V</span><span class="special">></span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Seq</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">is_dimension_list</span><span class="special"><</span><span class="identifier">Seq</span><span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">S</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">is_system</span><span class="special"><</span> <span class="identifier">homogeneous_system</span><span class="special"><</span><span class="identifier">S</span><span class="special">></span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">S</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">is_system</span><span class="special"><</span> <span class="identifier">heterogeneous_system</span><span class="special"><</span><span class="identifier">S</span><span class="special">></span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">S</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">is_homogeneous_system</span><span class="special"><</span> <span class="identifier">homogeneous_system</span><span class="special"><</span><span class="identifier">S</span><span class="special">></span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">S</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">is_heterogeneous_system</span><span class="special"><</span> <span class="identifier">heterogeneous_system</span><span class="special"><</span><span class="identifier">S</span><span class="special">></span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">Dim</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">System</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">is_unit</span><span class="special"><</span> <span class="identifier">unit</span><span class="special"><</span><span class="identifier">Dim</span><span class="special">,</span><span class="identifier">System</span><span class="special">></span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">Dim</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">System</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">is_unit_of_system</span><span class="special"><</span> <span class="identifier">unit</span><span class="special"><</span><span class="identifier">Dim</span><span class="special">,</span><span class="identifier">System</span><span class="special">>,</span><span class="identifier">System</span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">Dim</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">System</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">is_unit_of_dimension</span><span class="special"><</span> <span class="identifier">unit</span><span class="special"><</span><span class="identifier">Dim</span><span class="special">,</span><span class="identifier">System</span><span class="special">>,</span><span class="identifier">Dim</span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">Unit</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">Y</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">is_quantity</span><span class="special"><</span> <span class="identifier">quantity</span><span class="special"><</span><span class="identifier">Unit</span><span class="special">,</span><span class="identifier">Y</span><span class="special">></span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">Dim</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">System</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">Y</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">is_quantity_of_system</span><span class="special"><</span> <span class="identifier">quantity</span><span class="special"><</span><span class="identifier">unit</span><span class="special"><</span><span class="identifier">Dim</span><span class="special">,</span><span class="identifier">System</span><span class="special">>,</span><span class="identifier">Y</span><span class="special">>,</span><span class="identifier">System</span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">Dim</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">System</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">Y</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">is_quantity_of_dimension</span><span class="special"><</span> <span class="identifier">quantity</span><span class="special"><</span><span class="identifier">unit</span><span class="special"><</span><span class="identifier">Dim</span><span class="special">,</span><span class="identifier">System</span><span class="special">>,</span><span class="identifier">Y</span><span class="special">>,</span><span class="identifier">Dim</span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">System</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">is_dimensionless</span><span class="special"><</span> <span class="identifier">unit</span><span class="special"><</span><span class="identifier">dimensionless_type</span><span class="special">,</span><span class="identifier">System</span><span class="special">></span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">System</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">is_dimensionless_unit</span><span class="special"><</span> <span class="identifier">unit</span><span class="special"><</span><span class="identifier">dimensionless_type</span><span class="special">,</span><span class="identifier">System</span><span class="special">></span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">System</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">Y</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">is_dimensionless</span><span class="special"><</span> <span class="identifier">quantity</span><span class="special"><</span><span class="identifier">unit</span><span class="special"><</span><span class="identifier">dimensionless_type</span><span class="special">,</span><span class="identifier">System</span><span class="special">>,</span><span class="identifier">Y</span><span class="special">></span> <span class="special">>;</span>
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<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">System</span><span class="special">,</span><span class="keyword">class</span> <span class="identifier">Y</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">is_dimensionless_quantity</span><span class="special"><</span> <span class="identifier">quantity</span><span class="special"><</span><span class="identifier">unit</span><span class="special"><</span><span class="identifier">dimensionless_type</span><span class="special">,</span><span class="identifier">System</span><span class="special">>,</span><span class="identifier">Y</span><span class="special">></span> <span class="special">>;</span>
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||
</pre>
|
||
</div>
|
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</div>
|
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<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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<td align="left"></td>
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<td align="right"><div class="copyright-footer">Copyright © 2003-2008 Matthias Christian Schabel<br>Copyright © 2007-2010 Steven
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Watanabe<p>
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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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</p>
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</tr></table>
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