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| 27 | <div class="refnamediv"> |
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| 28 | <h2><span class="refentrytitle">Function hash_value</span></h2> |
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| 29 | <p>boost::hash_value — |
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| 30 | Implementation of a hash function for floating point values. |
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| 31 | </p> |
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| 32 | </div> |
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| 33 | <h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> |
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| 34 | <div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"> |
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| 35 | <span class="type">std::size_t</span> hash_value(<span class="bold"><strong>float</strong></span> val); |
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| 36 | <span class="type">std::size_t</span> hash_value(double val); |
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| 37 | <span class="type">std::size_t</span> hash_value(<span class="bold"><strong>long</strong></span> double val);</pre></div> |
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| 38 | <div class="refsect1" lang="en"> |
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| 39 | <a name="id1220503"></a><h2>Description</h2> |
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| 40 | <p> |
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| 41 | Generally shouldn't be called directly by users, instead they should use |
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| 42 | <code class="computeroutput"><a href="boost/hash.html" title="Struct template hash">boost::hash</a></code>, <code class="computeroutput"><a href="hash_range.html" title="Function hash_range">boost::hash_range</a></code> |
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| 43 | or <code class="computeroutput"><a href="hash_combine.html" title="Function template hash_combine">boost::hash_combine</a></code> which |
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| 44 | call hash_value without namespace qualification so that overloads |
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| 45 | for custom types are found via ADL. |
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| 46 | </p> |
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| 47 | <p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Notes</span></b>: |
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| 48 | |
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| 49 | Overloads for other types supplied in other headers.<p>This is an extension to TR1</p><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>: |
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| 50 | |
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| 51 | |
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| 52 | An unspecified value, except that equal arguments shall yield the same |
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| 53 | result |
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| 54 | </p> |
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| 59 | <td align="right"><small>Copyright © 2005 Daniel James</small></td> |
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