[Boost-bugs] [Boost C++ Libraries] #2042: map insert does not work after an erase in the non-typeof implementation

Subject: [Boost-bugs] [Boost C++ Libraries] #2042: map insert does not work after an erase in the non-typeof implementation
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2008-06-24 03:25:33

#2042: map insert does not work after an erase in the non-typeof implementation
-----------------------------+----------------------------------------------
 Reporter:  steven_watanabe  |       Owner:         
     Type:  Bugs             |      Status:  new    
Milestone:  Boost 1.36.0     |   Component:  None   
  Version:  Boost 1.35.0     |    Severity:  Problem
 Keywords:                   |  
-----------------------------+----------------------------------------------
 This test case fails.

 {{{

 #include <boost/mpl/map.hpp>
 #include <boost/mpl/assert.hpp>
 #include <boost/mpl/insert.hpp>
 #include <boost/mpl/pair.hpp>
 #include <boost/mpl/erase_key.hpp>
 #include <boost/mpl/at.hpp>
 #include <boost/type_traits/is_same.hpp>

 using namespace boost::mpl;

 typedef erase_key<
   insert<
     insert<map0<>, pair<char, double> >::type,
     pair<int, float>
   >::type,
   char
 >::type int_to_float_map;

 typedef insert<int_to_float_map, pair<char, long> >::type with_char_too;

 BOOST_MPL_ASSERT((boost::is_same<at<with_char_too, char>::type, long>));

 }}}

 The attached patch fixes the problem.

-- 
Ticket URL: <http://svn.boost.org/trac/boost/ticket/2042>
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