Re: [Boost-bugs] [Boost C++ Libraries] #13434: index_args_default_compare uses result_type

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #13434: index_args_default_compare uses result_type
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2018-02-01 21:08:16

#13434: index_args_default_compare uses result_type
-------------------------------+-----------------------------------
  Reporter:  gast128@…         |      Owner:  Joaquín M López Muñoz
      Type:  Bugs              |     Status:  new
 Milestone:  To Be Determined  |  Component:  multi_index
   Version:  Boost 1.65.0      |   Severity:  Problem
Resolution:                    |   Keywords:
-------------------------------+-----------------------------------

Comment (by gast128@…):

 I use Boost 1.65.1 with Visual studio 2017:

 {{{#!cpp
 template <class PairType>
 struct select1st/* : public std::unary_function<PairType, typename
 PairType::first_type>*/
 {
     const typename PairType::first_type& operator()(const PairType& cr)
 const
     {
         return cr.first;
     }
 };

 int main()
 {
     typedef std::pair<int, int> ClassEntry;

     typedef boost::multi_index::multi_index_container
             <
                 ClassEntry,
                 boost::multi_index::indexed_by
                 <
 boost::multi_index::ordered_non_unique<select1st<ClassEntry>>
                 >
             > ClassEntrySet;

     ClassEntrySet   cntEntries;

     return 0;
 }
 }}}

 1>d:\develop\sdk and
 libraries\boost_1_65_1\boost\multi_index\detail\ord_index_args.hpp(46):
 error C2039: 'result_type': is not a member of 'select1st<ClassEntry>'

-- 
Ticket URL: <https://svn.boost.org/trac10/ticket/13434#comment:2>
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