Re: [boost] Re: [FOREACH] new version available, testers needed

From: Jody Hagins (jody-boost-011304_at_[hidden])
Date: 2005-03-10 13:07:53

On Thu, 10 Mar 2005 17:44:34 +0000
Russell Hind <rh_gmane_at_[hidden]> wrote:

> template<typename Range>
> std::vector<int> to_vector_foreach_byval( Range & rng )
> {
>      std::vector<int> vect;
>      typedef typename ::boost::range_result_iterator<Range>::type
>      iterator; typedef typename
>      ::boost::iterator_value<iterator>::type value; BOOST_FOREACH(
>      value i, rng ) {
>          vect.push_back(i);
>      }
>      return vect;
> }
> 
> The two typedef lines give these errors:
> 
> [C++ Error] main.cpp(110): E2437 'typename' should be followed by a 
> qualified, dependent type name
> [C++ Error] main.cpp(111): E2437 'typename' should be followed by a 
> qualified, dependent type name
> 
> So quite a few of these through the regression .cpp file.  Any ideas
> how  to solve these so I can run the tests?

replace typename with BOOST_DEDUCED_TYPENAME and see if that works.  If
not, then you may need a similar workaround that is used elsewhere...

template<typename Range>
std::vector<int> to_vector_foreach_byval( Range & rng )
{
#if defined(__BORLANDC__) && (__BORLANDC__ <= 0x564)
#  define BOOST_typename
#else
#  define BOOST_typename BOOST_DEDUCED_TYPENAME
#endif
     std::vector<int> vect;
     typedef BOOST_typename ::boost::range_result_iterator<Range>::type
iterator;
     typedef BOOST_typename ::boost::iterator_value<iterator>::type
value;
     BOOST_FOREACH( value i, rng )
     {
         vect.push_back(i);
     }
     return vect;
#undef BOOST_typename
}