[Boost-bugs] [Boost C++ Libraries] #4756: Support for C++0x type_index in hash

Subject: [Boost-bugs] [Boost C++ Libraries] #4756: Support for C++0x type_index in hash
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-10-19 10:22:24

#4756: Support for C++0x type_index in hash
--------------------------------+-------------------------------------------
 Reporter:  ru.elric@…          |       Owner:  danieljames
     Type:  Feature Requests    |      Status:  new        
Milestone:  To Be Determined    |   Component:  hash       
  Version:  Boost 1.44.0        |    Severity:  Problem    
 Keywords:                      |  
--------------------------------+-------------------------------------------
 Boost hash currently does not support C++0x std::type_index.

 Boost has a #define for availability of <typeindex> header -
 BOOST_NO_0X_HDR_TYPEINDEX. Therefore, adding support for std::type_index
 should be pretty straightforward.

 Something along the lines could do:
 {{{
 #ifndef BOOST_NO_0X_HDR_TYPEINDEX
 #include <typeindex>

 namespace boost {
   std::size_t hash_value(const std::type_index &v) {
     return v.hash_code();
   }
 }
 #endif
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4756>
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