Re: [Boost-users] [serialization] hash_map declaration problem

From: Joseph Turian (turian_at_[hidden])
Date: 2008-01-25 20:22:16

I have the same problem. I am using the implementation of hash_map
that is default in Gentoo Linux (libstdc++ i think).

On Sun, Dec 23, 2007 at 1:21 PM, Robert Ramey <ramey_at_[hidden]> wrote:
> When I look at the boost page
>  http://www.boost.org/doc/html/boost_tr1/unsupported.html
>
>  I see the
>
>  // [6.3.4.4] Class template unordered_map
>  template <class Key,
>          class T,
>          class Hash = hash<Key>,
>          class Pred = std::equal_to<Key>,
>          class Alloc = std::allocator<std::pair<const Key, T> > >
>  class unordered_map;
>
>  which matches the current definition.
>
>  So it would be interesting to know which version of the standard
>  library you're using.  It it is widely used, I would be interested
>  in making changes to maintain backward compatibility, but then
>  I would need to know how to select which prototype to use.
>
>  Robert Ramey
>
>
>
>
>
>  Robert Ramey wrote:
>  > Hmmm,
>  >
>  > When I look into my MSVC 7.1 library I see the class declaration as
>  > it is in the serialization library.
>  >
>  > When I look into SGI documentation, I see the declaration you've used.
>  >
>  > So I'll guess this will be a little more work as the hash_map test
>  > will also need to be tweaked.
>  >
>  > Just So I don't forget, how about opening a Trac Ticket on this.
>  >
>  > Robert Ramey
>  > "Jan Boehme" <jan.boehme_at_[hidden]> wrote in message
>  > news:6b4335640712170254m3e93b390o3b39d7e7a50749c8_at_mail.gmail.com...
>  > Hi,
>  > I encountered problems while trying to serialize hash_maps which use
>  > pool allocators ( gcc: no member 'serialize' ). I had a look into
>  > "boost/serialization/hash_map.hpp" and realized a problem in the
>  > declaration of hash_map in here:
>  >
>  > BOOST_STD_EXTENSION_NAMESPACE::hash_map<Key, HashFcn, EqualKey,
>  > Allocator>
>  > should be
>  >
>  > BOOST_STD_EXTENSION_NAMESPACE::hash_map<Key, Value, HashFcn, EqualKey,
>  > Allocator>
>  >
>  > It seems that nobody used the hash_map with more than 4 template
>  > parameters together with boost::serialization before.
>  >
>  > It would be nice, if the following changes for
>  > "boost/serialization/hash_map.hpp" would be adopted into the repos.
>  >
>  > Cheers, Jan.
>  >
>  > --- /boost-trunk/boost/serialization/hash_map.hpp    2007-08-01 09:03:
>  > 26.000000000 +0200
>  > +++ /boost/serialization/hash_map.hpp    2007-12-17
>  > 11:36:27.000000000 +0100 @@ -33,3 +33,4 @@
>  >     class Archive,
>  > -    class Key,
>  > +    class Key,
>  > +    class Value,
>  >     class HashFcn,
>  > @@ -41,3 +42,3 @@
>  >     const BOOST_STD_EXTENSION_NAMESPACE::hash_map<
>  > -        Key, HashFcn, EqualKey, Allocator
>  > +        Key, Value, HashFcn, EqualKey, Allocator
>  >     > &t,
>  > @@ -48,3 +49,3 @@
>  >         BOOST_STD_EXTENSION_NAMESPACE::hash_map<
>  > -            Key, HashFcn, EqualKey, Allocator
>  > +            Key, Value, HashFcn, EqualKey, Allocator
>  >         >
>  > @@ -55,3 +56,4 @@
>  >     class Archive,
>  > -    class Key,
>  > +    class Key,
>  > +    class Value,
>  >     class HashFcn,
>  > @@ -63,3 +65,3 @@
>  >     BOOST_STD_EXTENSION_NAMESPACE::hash_map<
>  > -        Key, HashFcn, EqualKey, Allocator
>  > +        Key, Value, HashFcn, EqualKey, Allocator
>  >     > &t,
>  > @@ -70,3 +72,3 @@
>  >         BOOST_STD_EXTENSION_NAMESPACE::hash_map<
>  > -            Key, HashFcn, EqualKey, Allocator
>  > +            Key, Value, HashFcn, EqualKey, Allocator
>  >         >,
>  > @@ -75,3 +77,3 @@
>  >             BOOST_STD_EXTENSION_NAMESPACE::hash_map<
>  > -                Key, HashFcn, EqualKey, Allocator
>  > +                Key, Value, HashFcn, EqualKey, Allocator
>  >             >
>  > @@ -85,3 +87,4 @@
>  >     class Archive,
>  > -    class Key,
>  > +    class Key,
>  > +    class Value,
>  >     class HashFcn,
>  > @@ -93,3 +96,3 @@
>  >     BOOST_STD_EXTENSION_NAMESPACE::hash_map<
>  > -        Key, HashFcn, EqualKey, Allocator
>  > +        Key, Value, HashFcn, EqualKey, Allocator
>  >     > &t,
>  >
>  >
>  >
>  >
>  >
>  > _______________________________________________
>  > Boost-users mailing list
>  > Boost-users_at_[hidden]
>  > http://lists.boost.org/mailman/listinfo.cgi/boost-users
>
>
>
>  _______________________________________________
>  Boost-users mailing list
>  Boost-users_at_[hidden]
>  http://lists.boost.org/mailman/listinfo.cgi/boost-users
>

-- 
Academic: http://www-etud.iro.umontreal.ca/~turian/
Business: http://www.metaoptimize.com/