[Boost-bugs] [Boost C++ Libraries] #4300: at<AssocSeq, Key, Default> undefined

Subject: [Boost-bugs] [Boost C++ Libraries] #4300: at<AssocSeq, Key, Default> undefined
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-06-05 13:02:44

#4300: at<AssocSeq,Key,Default> undefined
--------------------------+-------------------------------------------------
 Reporter:  anonymous     |       Owner:  agurtovoy
     Type:  Bugs          |      Status:  new      
Milestone:  Boost 1.44.0  |   Component:  mpl      
  Version:  Boost 1.41.0  |    Severity:  Problem  
 Keywords:                |  
--------------------------+-------------------------------------------------
 the mpl::at overload for associative sequences is documented to be:

 template<
       typename AssocSeq
     , typename Key
     , typename Default = unspecified
     >
 struct at


 but there is no 3-parameter-overload in mpl/at.hpp.

 so the following code:
 typedef mpl::map< mpl::pair<int,double> > mymap;
 typedef mpl::at<mymap,float,int>::type should_be_int;

 results in:
 'boost::mpl::at' : too many template arguments

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4300>
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