| <html> |
| <head> |
| <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> |
| <title>Reference</title> |
| <link rel="stylesheet" href="../../../doc/src/boostbook.css" type="text/css"> |
| <meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> |
| <link rel="home" href="../index.html" title="The Boost C++ Libraries BoostBook Documentation Subset"> |
| <link rel="up" href="../hash.html" title="Chapter 9. Boost.Functional/Hash"> |
| <link rel="prev" href="changes.html" title="Change Log"> |
| <link rel="next" href="../boost/hash.html" title="Struct template hash"> |
| </head> |
| <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> |
| <table cellpadding="2" width="100%"><tr> |
| <td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../boost.png"></td> |
| <td align="center"><a href="../../../index.html">Home</a></td> |
| <td align="center"><a href="../../../libs/libraries.htm">Libraries</a></td> |
| <td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> |
| <td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> |
| <td align="center"><a href="../../../more/index.htm">More</a></td> |
| </tr></table> |
| <hr> |
| <div class="spirit-nav"> |
| <a accesskey="p" href="changes.html"><img src="../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../hash.html"><img src="../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="../boost/hash.html"><img src="../../../doc/src/images/next.png" alt="Next"></a> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h2 class="title" style="clear: both"> |
| <a name="hash.reference"></a>Reference</h2></div></div></div> |
| <div class="toc"><dl> |
| <dt><span class="section"><a href="reference.html#hash.reference.specification"></a></span></dt> |
| <dt><span class="section"><a href="reference.html#header.boost.functional.hash_hpp">Header <boost/functional/hash.hpp></a></span></dt> |
| </dl></div> |
| <div class="section"> |
| <div class="titlepage"></div> |
| <p>For the full specification, see section 6.3 of the |
| <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1836.pdf" target="_top">C++ Standard Library Technical Report</a> |
| and issue 6.18 of the |
| <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1837.pdf" target="_top">Library Extension Technical Report Issues List</a> (page 63). |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h3 class="title"> |
| <a name="header.boost.functional.hash_hpp"></a>Header <<a href="../../../boost/functional/hash.hpp" target="_top">boost/functional/hash.hpp</a>></h3></div></div></div> |
| <p> |
| Defines <code class="computeroutput"><a class="link" href="../boost/hash.html" title="Struct template hash">boost::hash</a></code>, |
| and helper functions. |
| </p> |
| <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash.html" title="Struct template hash">hash</a><span class="special">;</span> |
| |
| <span class="keyword">template</span><span class="special"><</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_bool_id661265.html" title="Struct hash<bool>">hash</a><span class="special"><</span><span class="keyword">bool</span><span class="special">></span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_char_id678836.html" title="Struct hash<char>">hash</a><span class="special"><</span><span class="keyword">char</span><span class="special">></span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_signed_char_id629194.html" title="Struct hash<signed char>">hash</a><span class="special"><</span><span class="keyword">signed</span> <span class="keyword">char</span><span class="special">></span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_unsigned_char_id658937.html" title="Struct hash<unsigned char>">hash</a><span class="special"><</span><span class="keyword">unsigned</span> <span class="keyword">char</span><span class="special">></span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_wchar_t_id472324.html" title="Struct hash<wchar_t>">hash</a><span class="special"><</span><span class="keyword">wchar_t</span><span class="special">></span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_short_id657256.html" title="Struct hash<short>">hash</a><span class="special"><</span><span class="keyword">short</span><span class="special">></span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_unsigned_short_id674115.html" title="Struct hash<unsigned short>">hash</a><span class="special"><</span><span class="keyword">unsigned</span> <span class="keyword">short</span><span class="special">></span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_int_id662502.html" title="Struct hash<int>">hash</a><span class="special"><</span><span class="keyword">int</span><span class="special">></span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_unsigned_int_id680609.html" title="Struct hash<unsigned int>">hash</a><span class="special"><</span><span class="keyword">unsigned</span> <span class="keyword">int</span><span class="special">></span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_long_id678140.html" title="Struct hash<long>">hash</a><span class="special"><</span><span class="keyword">long</span><span class="special">></span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_unsigned_long_id696660.html" title="Struct hash<unsigned long>">hash</a><span class="special"><</span><span class="keyword">unsigned</span> <span class="keyword">long</span><span class="special">></span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_long_long_id693475.html" title="Struct hash<long long>">hash</a><span class="special"><</span><span class="keyword">long</span> <span class="keyword">long</span><span class="special">></span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_unsigned_long_long_id670606.html" title="Struct hash<unsigned long long>">hash</a><span class="special"><</span><span class="keyword">unsigned</span> <span class="keyword">long</span> <span class="keyword">long</span><span class="special">></span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_float_id438130.html" title="Struct hash<float>">hash</a><span class="special"><</span><span class="keyword">float</span><span class="special">></span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_double_id405922.html" title="Struct hash<double>">hash</a><span class="special"><</span><span class="keyword">double</span><span class="special">></span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_long_double_id418297.html" title="Struct hash<long double>">hash</a><span class="special"><</span><span class="keyword">long</span> <span class="keyword">double</span><span class="special">></span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_std_string_id692935.html" title="Struct hash<std::string>">hash</a><span class="special"><</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">></span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_std_wstring_id692992.html" title="Struct hash<std::wstring>">hash</a><span class="special"><</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring</span><span class="special">></span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_T_id678097.html" title="Struct template hash<T*>">hash</a><span class="special"><</span><span class="identifier">T</span><span class="special">*</span><span class="special">></span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="special">></span> <span class="keyword">struct</span> <a class="link" href="../boost/hash_std_type_index_id694097.html" title="Struct hash<std::type_index>">hash</a><span class="special"><</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">type_index</span><span class="special">></span><span class="special">;</span> |
| |
| <span class="comment">// <a class="link" href="reference.html#id635012-bb">Support functions (Boost extension).</a></span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <span class="keyword">void</span> <a class="link" href="reference.html#boost.hash_combine"><span class="identifier">hash_combine</span></a><span class="special">(</span><span class="identifier">size_t</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> It<span class="special">></span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id661820-bb"><span class="identifier">hash_range</span></a><span class="special">(</span><span class="identifier">It</span><span class="special">,</span> <span class="identifier">It</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> It<span class="special">></span> <span class="keyword">void</span> <a class="link" href="reference.html#id671168-bb"><span class="identifier">hash_range</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">&</span><span class="special">,</span> <span class="identifier">It</span><span class="special">,</span> <span class="identifier">It</span><span class="special">)</span><span class="special">;</span> |
| |
| <span class="comment">// <a class="link" href="reference.html#id660353-bb">Overloadable hash implementation (Boost extension).</a></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id689836-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="keyword">bool</span><span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id689851-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id689865-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="keyword">signed</span> <span class="keyword">char</span><span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id443611-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">char</span><span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id663665-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="keyword">wchar_t</span><span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id663680-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="keyword">short</span><span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id663694-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">short</span><span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id663709-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="keyword">int</span><span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id663723-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">int</span><span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id663737-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="keyword">long</span><span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id663752-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">long</span><span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id661609-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="keyword">long</span> <span class="keyword">long</span><span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id661624-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">long</span> <span class="keyword">long</span><span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id661638-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="keyword">float</span><span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id661653-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="keyword">double</span><span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id661667-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="keyword">long</span> <span class="keyword">double</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id659662-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="identifier">T</span><span class="special">*</span> <span class="keyword">const</span><span class="special">&</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">unsigned</span> N<span class="special">></span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id659682-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="identifier">T</span> <span class="special">(</span><span class="special">&</span><span class="identifier">val</span><span class="special">)</span><span class="special">[</span><span class="identifier">N</span><span class="special">]</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">unsigned</span> N<span class="special">></span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id659709-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">T</span> <span class="special">(</span><span class="special">&</span><span class="identifier">val</span><span class="special">)</span><span class="special">[</span><span class="identifier">N</span><span class="special">]</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Ch<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id659737-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">Ch</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">char_traits</span><span class="special"><</span><span class="identifier">Ch</span><span class="special">></span><span class="special">,</span> <span class="identifier">A</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> A<span class="special">,</span> <span class="keyword">typename</span> B<span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id659768-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special"><</span><span class="identifier">A</span><span class="special">,</span> <span class="identifier">B</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id693693-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special"><</span><span class="identifier">T</span><span class="special">,</span> <span class="identifier">A</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id693720-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">list</span><span class="special"><</span><span class="identifier">T</span><span class="special">,</span> <span class="identifier">A</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id693748-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">deque</span><span class="special"><</span><span class="identifier">T</span><span class="special">,</span> <span class="identifier">A</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> K<span class="special">,</span> <span class="keyword">typename</span> C<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id694662-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">set</span><span class="special"><</span><span class="identifier">K</span><span class="special">,</span> <span class="identifier">C</span><span class="special">,</span> <span class="identifier">A</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> K<span class="special">,</span> <span class="keyword">typename</span> C<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id694694-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">multiset</span><span class="special"><</span><span class="identifier">K</span><span class="special">,</span> <span class="identifier">C</span><span class="special">,</span> <span class="identifier">A</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> K<span class="special">,</span> <span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> C<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id694726-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">map</span><span class="special"><</span><span class="identifier">K</span><span class="special">,</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">C</span><span class="special">,</span> <span class="identifier">A</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> K<span class="special">,</span> <span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> C<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id658971-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">multimap</span><span class="special"><</span><span class="identifier">K</span><span class="special">,</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">C</span><span class="special">,</span> <span class="identifier">A</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id428434-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">complex</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span><span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="reference.html#id694952-bb"><span class="identifier">hash_value</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">type_index</span><span class="special">)</span><span class="special">;</span> |
| <span class="special">}</span></pre> |
| <div class="refsect2"> |
| <a name="id1392242"></a><h3> |
| <a name="id635012-bb"></a><code class="computeroutput"></code> Support functions (Boost extension).</h3> |
| <div class="orderedlist"><ol class="orderedlist" type="1"> |
| <li class="listitem"> |
| <pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <span class="keyword">void</span> <a name="boost.hash_combine"></a><span class="identifier">hash_combine</span><span class="special">(</span><span class="identifier">size_t</span> <span class="special">&</span> seed<span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&</span> v<span class="special">)</span><span class="special">;</span></pre> |
| <p class="simpara"> |
| Called repeatedly to incrementally create a hash value from |
| several variables. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term">Effects:</span></p></td> |
| <td><pre class="programlisting"><span class="identifier">seed</span> <span class="special">^=</span> <a class="link" href="reference.html#boost.hash_value">hash_value</a><span class="special">(</span><span class="identifier">v</span><span class="special">)</span> <span class="special">+</span> <span class="number">0x9e3779b9</span> <span class="special">+</span> <span class="special">(</span><span class="identifier">seed</span> <span class="special"><<</span> <span class="number">6</span><span class="special">)</span> <span class="special">+</span> <span class="special">(</span><span class="identifier">seed</span> <span class="special">>></span> <span class="number">2</span><span class="special">)</span><span class="special">;</span></pre></td> |
| </tr> |
| <tr> |
| <td><p><span class="term">Notes:</span></p></td> |
| <td> |
| <p><a class="link" href="reference.html#boost.hash_value">hash_value</a> is called without |
| qualification, so that overloads can be found via ADL.</p> |
| <p>This is an extension to TR1</p> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term">Throws:</span></p></td> |
| <td> |
| Only throws if <a class="link" href="reference.html#boost.hash_value">hash_value</a>(T) throws. |
| Strong exception safety, as long as <a class="link" href="reference.html#boost.hash_value">hash_value</a>(T) |
| also has strong exception safety. |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </li> |
| <li class="listitem"> |
| <p><a name="boost.hash_range"></a></p> |
| <pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> It<span class="special">></span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id661820-bb"></a><span class="identifier">hash_range</span><span class="special">(</span><span class="identifier">It</span> first<span class="special">,</span> <span class="identifier">It</span> last<span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> It<span class="special">></span> <span class="keyword">void</span> <a name="id671168-bb"></a><span class="identifier">hash_range</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">&</span> seed<span class="special">,</span> <span class="identifier">It</span> first<span class="special">,</span> <span class="identifier">It</span> last<span class="special">)</span><span class="special">;</span></pre> |
| <p class="simpara"> |
| Calculate the combined hash value of the elements of an iterator |
| range. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term">Effects:</span></p></td> |
| <td> |
| <p>For the two argument overload: |
| </p> |
| <pre class="programlisting"> |
| <span class="identifier">size_t</span> <span class="identifier">seed</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span> |
| |
| <span class="keyword">for</span><span class="special">(</span><span class="special">;</span> <span class="identifier">first</span> <span class="special">!=</span> <span class="identifier">last</span><span class="special">;</span> <span class="special">++</span><span class="identifier">first</span><span class="special">)</span> |
| <span class="special">{</span> |
| <a class="link" href="reference.html#boost.hash_combine">hash_combine</a><span class="special">(</span><span class="identifier">seed</span><span class="special">,</span> <span class="special">*</span><span class="identifier">first</span><span class="special">)</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| <span class="keyword">return</span> <span class="identifier">seed</span><span class="special">;</span> |
| </pre> |
| <p> |
| </p>For the three arguments overload: |
| <pre class="programlisting"> |
| <span class="keyword">for</span><span class="special">(</span><span class="special">;</span> <span class="identifier">first</span> <span class="special">!=</span> <span class="identifier">last</span><span class="special">;</span> <span class="special">++</span><span class="identifier">first</span><span class="special">)</span> |
| <span class="special">{</span> |
| <a class="link" href="reference.html#boost.hash_combine">hash_combine</a><span class="special">(</span><span class="identifier">seed</span><span class="special">,</span> <span class="special">*</span><span class="identifier">first</span><span class="special">)</span><span class="special">;</span> |
| <span class="special">}</span> |
| </pre> |
| <p> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term">Notes:</span></p></td> |
| <td> |
| <p> |
| <code class="computeroutput">hash_range</code> is sensitive to the order of the elements |
| so it wouldn't be appropriate to use this with an unordered |
| container. |
| </p> |
| <p>This is an extension to TR1</p> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term">Throws:</span></p></td> |
| <td><p> |
| Only throws if <code class="computeroutput"><a class="link" href="reference.html#boost.hash_value">hash_value</a>(std::iterator_traits<It>::value_type)</code> |
| throws. <code class="computeroutput">hash_range(std::size_t&, It, It)</code> has basic exception safety as long as |
| <code class="computeroutput"><a class="link" href="reference.html#boost.hash_value">hash_value</a>(std::iterator_traits<It>::value_type)</code> |
| has basic exception safety. |
| </p></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </li> |
| </ol></div> |
| </div> |
| <div class="refsect2"> |
| <a name="id1393011"></a><h3> |
| <a name="id660353-bb"></a><code class="computeroutput"></code> Overloadable hash implementation (Boost extension).</h3> |
| <div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"> |
| <p><a name="boost.hash_value"></a></p> |
| <pre class="literallayout"><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id689836-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="keyword">bool</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id689851-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="keyword">char</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id689865-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="keyword">signed</span> <span class="keyword">char</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id443611-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">char</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id663665-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="keyword">wchar_t</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id663680-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="keyword">short</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id663694-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">short</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id663709-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="keyword">int</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id663723-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">int</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id663737-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="keyword">long</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id663752-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">long</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id661609-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="keyword">long</span> <span class="keyword">long</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id661624-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="keyword">unsigned</span> <span class="keyword">long</span> <span class="keyword">long</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id661638-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="keyword">float</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id661653-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="keyword">double</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id661667-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="keyword">long</span> <span class="keyword">double</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id659662-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="identifier">T</span><span class="special">*</span> <span class="keyword">const</span><span class="special">&</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">unsigned</span> N<span class="special">></span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id659682-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="identifier">T</span> <span class="special">(</span><span class="special">&</span><span class="identifier">val</span><span class="special">)</span><span class="special">[</span><span class="identifier">N</span><span class="special">]</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">unsigned</span> N<span class="special">></span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id659709-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">T</span> <span class="special">(</span><span class="special">&</span><span class="identifier">val</span><span class="special">)</span><span class="special">[</span><span class="identifier">N</span><span class="special">]</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Ch<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id659737-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">Ch</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">char_traits</span><span class="special"><</span><span class="identifier">Ch</span><span class="special">></span><span class="special">,</span> <span class="identifier">A</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> A<span class="special">,</span> <span class="keyword">typename</span> B<span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id659768-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special"><</span><span class="identifier">A</span><span class="special">,</span> <span class="identifier">B</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id693693-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special"><</span><span class="identifier">T</span><span class="special">,</span> <span class="identifier">A</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id693720-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">list</span><span class="special"><</span><span class="identifier">T</span><span class="special">,</span> <span class="identifier">A</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id693748-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">deque</span><span class="special"><</span><span class="identifier">T</span><span class="special">,</span> <span class="identifier">A</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> K<span class="special">,</span> <span class="keyword">typename</span> C<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id694662-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">set</span><span class="special"><</span><span class="identifier">K</span><span class="special">,</span> <span class="identifier">C</span><span class="special">,</span> <span class="identifier">A</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> K<span class="special">,</span> <span class="keyword">typename</span> C<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id694694-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">multiset</span><span class="special"><</span><span class="identifier">K</span><span class="special">,</span> <span class="identifier">C</span><span class="special">,</span> <span class="identifier">A</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> K<span class="special">,</span> <span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> C<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id694726-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">map</span><span class="special"><</span><span class="identifier">K</span><span class="special">,</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">C</span><span class="special">,</span> <span class="identifier">A</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> K<span class="special">,</span> <span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> C<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id658971-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">multimap</span><span class="special"><</span><span class="identifier">K</span><span class="special">,</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">C</span><span class="special">,</span> <span class="identifier">A</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id428434-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">complex</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span> val<span class="special">)</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="id694952-bb"></a><span class="identifier">hash_value</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">type_index</span> val<span class="special">)</span><span class="special">;</span></pre> |
| <p class="simpara"> |
| Implementation of the hash function. |
| </p> |
| <p> |
| Generally shouldn't be called directly by users, instead they should use |
| <code class="computeroutput"><a class="link" href="../boost/hash.html" title="Struct template hash">boost::hash</a></code>, <code class="computeroutput"><a class="link" href="reference.html#boost.hash_range">boost::hash_range</a></code> |
| or <code class="computeroutput"><a class="link" href="reference.html#boost.hash_combine">boost::hash_combine</a></code> which |
| call <code class="computeroutput">hash_value</code> without namespace qualification so that overloads |
| for custom types are found via ADL. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term">Notes:</span></p></td> |
| <td><p>This is an extension to TR1</p></td> |
| </tr> |
| <tr> |
| <td><p><span class="term">Throws:</span></p></td> |
| <td> |
| Only throws if a user supplied version of |
| <code class="computeroutput"><a class="link" href="reference.html#boost.hash_value">hash_value</a></code> |
| throws for an element of a container, or |
| one of the types stored in a pair. |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term">Returns:</span></p></td> |
| <td><div class="informaltable"><table class="table"> |
| <colgroup> |
| <col> |
| <col> |
| </colgroup> |
| <thead><tr> |
| <th>Types</th> |
| <th>Returns</th> |
| </tr></thead> |
| <tbody> |
| <tr> |
| <td> |
| <code class="computeroutput">bool</code>, |
| <code class="computeroutput">char</code>, <code class="computeroutput">signed char</code>, <code class="computeroutput">unsigned char</code>, <code class="computeroutput">wchar_t</code>, |
| <code class="computeroutput">short</code>, <code class="computeroutput">unsigned short</code>, |
| <code class="computeroutput">int</code>, <code class="computeroutput">unsigned int</code>, <code class="computeroutput">long</code>, <code class="computeroutput">unsigned long</code> |
| </td> |
| <td><code class="computeroutput">val</code></td> |
| </tr> |
| <tr> |
| <td> |
| <code class="computeroutput">long long</code>, <code class="computeroutput">unsigned long long</code> |
| </td> |
| <td> |
| <code class="computeroutput">val</code> when <code class="computeroutput">abs(val) <= std::numeric_limits<std::size_t>::max()</code>.</td> |
| </tr> |
| <tr> |
| <td> |
| <code class="computeroutput">float</code>, <code class="computeroutput">double</code>, <code class="computeroutput">long double</code> |
| </td> |
| <td>An unspecified value, except that equal arguments shall yield the same result.</td> |
| </tr> |
| <tr> |
| <td><code class="computeroutput">T*</code></td> |
| <td>An unspecified value, except that equal arguments shall yield the same result.</td> |
| </tr> |
| <tr> |
| <td> |
| <code class="computeroutput">T val[N]</code>, |
| <code class="computeroutput">const T val[N]</code> |
| </td> |
| <td><code class="computeroutput">hash_range(val, val+N)</code></td> |
| </tr> |
| <tr> |
| <td> |
| <code class="computeroutput">std:basic_string<Ch, std::char_traits<Ch>, A></code>, |
| <code class="computeroutput">std::vector<T, A></code>, |
| <code class="computeroutput">std::list<T, A></code>, |
| <code class="computeroutput">std::deque<T, A></code>, |
| <code class="computeroutput">std::set<K, C, A></code>, |
| <code class="computeroutput">std::multiset<K, C, A></code>, |
| <code class="computeroutput">std::map<K, T, C, A></code>, |
| <code class="computeroutput">std::multimap<K, T, C, A></code> |
| </td> |
| <td><code class="computeroutput">hash_range(val.begin(), val.end())</code></td> |
| </tr> |
| <tr> |
| <td><code class="computeroutput">std::pair<A, B></code></td> |
| <td><pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">size_t</span> <span class="identifier">seed</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span> |
| <a class="link" href="reference.html#boost.hash_combine">hash_combine</a><span class="special">(</span><span class="identifier">seed</span><span class="special">,</span> <span class="identifier">val</span><span class="special">.</span><span class="identifier">first</span><span class="special">)</span><span class="special">;</span> |
| <a class="link" href="reference.html#boost.hash_combine">hash_combine</a><span class="special">(</span><span class="identifier">seed</span><span class="special">,</span> <span class="identifier">val</span><span class="special">.</span><span class="identifier">second</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">return</span> <span class="identifier">seed</span><span class="special">;</span></pre></td> |
| </tr> |
| <tr> |
| <td> |
| <code class="computeroutput">std::complex<T></code> |
| </td> |
| <td>When <code class="computeroutput">T</code> is a built in type and <code class="computeroutput">val.imag() == 0</code>, the result is equal to <code class="computeroutput">hash_value(val.real())</code>. Otherwise an unspecified value, except that equal arguments shall yield the same result.</td> |
| </tr> |
| <tr> |
| <td> |
| <code class="computeroutput">std::type_index</code> |
| </td> |
| <td><code class="computeroutput">val.hash_code()</code></td> |
| </tr> |
| </tbody> |
| </table></div></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </li></ol></div> |
| </div> |
| </div> |
| </div> |
| <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> |
| <td align="left"></td> |
| <td align="right"><div class="copyright-footer">Copyright © 2005-2008 Daniel |
| James<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>) |
| </p> |
| </div></td> |
| </tr></table> |
| <hr> |
| <div class="spirit-nav"> |
| <a accesskey="p" href="changes.html"><img src="../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../hash.html"><img src="../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="../boost/hash.html"><img src="../../../doc/src/images/next.png" alt="Next"></a> |
| </div> |
| </body> |
| </html> |
