Re: [Boost-bugs] [Boost C++ Libraries] #10370: Iterating over ptr_map type is largely broken in 1.56

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #10370: Iterating over ptr_map type is largely broken in 1.56
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-08-19 04:56:39

#10370: Iterating over ptr_map type is largely broken in 1.56
--------------------------------+---------------------------
  Reporter:  scottbgoldblatt@…  |      Owner:  nesotto
      Type:  Bugs               |     Status:  new
 Milestone:  To Be Determined   |  Component:  ptr_container
   Version:  Boost 1.56.0       |   Severity:  Showstopper
Resolution:                     |   Keywords:  ptr_map
--------------------------------+---------------------------
Changes (by eric_niebler):

 * keywords:  foreach,ptr_map => ptr_map
 * owner:  eric_niebler => nesotto
 * component:  foreach => ptr_container

Comment:

 This test case shows the problem is specific to ptr_container and has
 nothing to do with `BOOST_FOREACH`.

 {{{
 #include <boost/ptr_container/ptr_map.hpp>

 int main()
 {
     typedef boost::ptr_map<int, int> test_map_type;
     test_map_type test_map;
     test_map_type::const_reference r = *test_map.begin();
 }
 }}}

 For me, this gives:

 {{{
 1>f:\scratch\scratch\main.cpp(9): error C2440: 'initializing' : cannot
 convert from 'boost::ptr_container_detail::ref_pair<F,S>' to
 'boost::ptr_container_detail::ref_pair<F,S>'
 1>          with
 1>          [
 1>              F=int
 1>  ,            S=int *const
 1>          ]
 1>          and
 1>          [
 1>              F=int
 1>  ,            S=const int *const
 1>          ]
 1>          No constructor could take the source type, or constructor
 overload resolution was ambiguous
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/10370#comment:1>
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