Re: [Boost-users] tuple type question

21 May 2008


      Okay this version is working.
The problem is that I have a fixed defined tuple and for that the tuple 
is not defined inside a template struct.
for that I get the error that typename can be used only inside a 
template declaration...
I have something similar to the following declaration:

struct Test
{
     typedef boost::tuple tuple_t;
     tuple_t tup;
     enum Members { NAME, VALUE };

     typename boost::tuples::element::type
     name()
     { return boost::get<NAME>(tup); }

     template < Members mem >
     typename boost::tuples::element::type
     member()
     { return boost::get<mem>(tup); }
};


Maik Beckmann schrieb:
...
Am Mittwoch 21 Mai 2008 08:42:34 schrieb Hansi:
...
Noah Roberts schrieb:
...
#include 
#include <string>
#include <iostream>
template < typename T1, typename T2 >
struct Test
{
   typedef boost::tuple tuple_t;
   tuple_t tup;
enum Members { NAME, VALUE };
typename boost::tuples::element::type name() { return
tup.get<NAME>(); }
This code is almost correct :o) .  Try the attached File.
...
this version doesn't work with my compiler (msvc8.0). I get the error:
error C2899:typename cannot be used outside a template declaration
But this would be the preferred version for me. Have you an idea how I
can solve this?
Best,
 -- Maik
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