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Merge typeindex support for hash. Fixes #4756.

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[SVN r68199]
This commit is contained in:
Daniel James
2011-01-17 04:15:00 +00:00
parent fc7eb28826
commit cc0710b8a2
4 changed files with 102 additions and 0 deletions
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doc/ref.xml
+34
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@@ -406,6 +406,29 @@ file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
</method>
</struct-specialization>
<struct-specialization name="hash">
<template></template>
<specialization>
<template-arg>std::type_index</template-arg>
</specialization>
<method name="operator()" cv="const">
<type>std::size_t</type>
<parameter name="val">
<paramtype>std::type_index</paramtype>
</parameter>
<returns>
<para><code>val.hash_code()</code></para>
</returns>
<throws><para>Doesn't throw</para></throws>
</method>
<notes>
<para>
Only available if it's in your standard library and Boost.Config
is aware of it.
</para>
</notes>
</struct-specialization>
<free-function-group name="Support functions (Boost extension).">
<!--
@@ -716,6 +739,11 @@ for(; first != last; ++first)
<parameter name="val"><paramtype>std::complex&lt;T&gt; const&amp;</paramtype></parameter>
</signature>
<signature>
<type>std::size_t</type>
<parameter name="val"><paramtype>std::type_index</paramtype></parameter>
</signature>
<description><para>
Generally shouldn't be called directly by users, instead they should use
<classname>boost::hash</classname>, <functionname>boost::hash_range</functionname>
@@ -798,6 +826,12 @@ return seed;</programlisting></entry>
</entry>
<entry>When <code>T</code> is a built in type and <code>val.imag() == 0</code>, the result is equal to <code>hash_value(val.real())</code>. Otherwise an unspecified value, except that equal arguments shall yield the same result.</entry>
</row>
<row>
<entry>
<code>std::type_index</code>
</entry>
<entry><code>val.hash_code()</code></entry>
</row>
</tbody>
</tgroup>
</informaltable>