Re: c2244 and namespace error.

From:

"Ben Voigt [C++ MVP]" <rbv@nospam.nospam>

Newsgroups:

microsoft.public.vc.language

Date:

Wed, 10 Oct 2007 14:28:06 -0500

Message-ID:

<#AWO2O3CIHA.5160@TK2MSFTNGP05.phx.gbl>

<cablepuff@gmail.com> wrote in message
news:1192042730.298882.311640@r29g2000hsg.googlegroups.com...

Recently i did some compilation test that resulted in C2244 unable to
match function declaration and function definition.

example..

inside the hpp file.
namespace something {
template <typename T,
template <typename ELEM, typename = std::allocator<ELEM> >
class CONT

extern void select_sort(CONT<T>&, typename CONT<T>::iterator, const
typename CONT<T>::size_type&, const typename CONT<T>::size_type&);

You always use this "extern" keyword, could you try without it and see if
your problems go away? It isn't necessary for C++ code.

}

inside the c file

template <typename T,
        template <typename ELEM, typename = std::allocator<ELEM> >
        class CONT

void Something::select_sort(CONT<T>& array, typename CONT<T>::iterator
Left,
                   const typename CONT<T>::size_type& Size, const
typename CONT<T>::size_type& Step)
{
  typedef typename CONT<T>::iterator iter;
  iter IEnd(boost::next(Left, (Size-1)*Step));
  iter JEnd(boost::next(Left, Size*Step));
  iter min;
  iter Last(array.end());
  BOOST_ASSERT(IEnd != Last);
  BOOST_ASSERT(JEnd != Last);
  for (iter i(Left); i < IEnd; std::advance(i, Step))
  {
      min = i;
      for (iter j(boost::next(i, Step)); j < JEnd; std::advance(j,
Step))
      {
          if (*j < *min)
             min = j;
      }
      std::iter_swap(i, min);
  }
}

take it out of namespace and i don't get the error.