[Boost-bugs] [Boost C++ Libraries] #3413: Error with forward declaration of stdext::hash_map

Subject: [Boost-bugs] [Boost C++ Libraries] #3413: Error with forward declaration of stdext::hash_map
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2009-09-07 12:25:22

#3413: Error with forward declaration of stdext::hash_map
-------------------------------------------------------+--------------------
 Reporter:  Piotr Wyderski <piotr.wyderski@…>          |       Owner:         
     Type:  Bugs                                       |      Status:  new    
Milestone:  Boost 1.41.0                               |   Component:  None   
  Version:  Boost 1.40.0                               |    Severity:  Problem
 Keywords:                                             |  
-------------------------------------------------------+--------------------
 Below is a thread which describes exactly the same error I've encountered
 in Boost 1.40. There also is a patch to fix this issue

 http://www.nabble.com/-Spirit2--Error-with-forward-declaration-of-

 stdext::hash_map.-td21818384.html

 The correct code should be for is_std_hash_map.hpp:

 namespace boost
 {
     template<class T>
     struct is_std_hash_map
         : boost::mpl::false_
     {};

     template<
         class Kty
       , class Ty
       , class Tr
       , class Alloc
     >
     struct is_std_hash_map< ::stdext::hash_map<Kty,Ty,Tr,Alloc> >
         : boost::mpl::true_
     {};

     template<class T>
     struct is_std_hash_multimap
         : boost::mpl::false_
     {};

     template<
         class Kty
       , class Ty
       , class Tr
       , class Alloc
     >
     struct is_std_hash_multimap< ::stdext::hash_multimap<Kty,Ty,Tr,Alloc>
 >
         : boost::mpl::true_
     {};
 }

 The correct code for std_hash_map_fwd.hpp:

 namespace stdext
 {
     template<
         class Kty
       , class Ty
       , class Tr
       , class Alloc
     >
     class hash_map;

     template<
         class Kty
       , class Ty
       , class Tr
       , class Alloc
     >
     class hash_multimap;
 }

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/3413>
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