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Gosh, when working with mpl libraries, figuring out syntax is a hit-and-miss exerience (previous question ). What is the correct syntax to compare two mpl itterators -i.e., the it != v.end() test ? 

template<typename T> 
struct get_type_ordinal
{
  rbl_type_ordinal_type operator()()
  {
    typedef typename boost::mpl::find<rbl_type_mpl_vector,T>::type it;
    typedef typename boost::mpl::end<rbl_type_mpl_vector>::type end;

    BOOST_MPL_ASSERT_NOT (( boost::mpl::equal_to< it, end >)); // problem here
    return it::pos::value;
   }
}

If I remove the assert the functor compiles and performs fine.

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Hassan Syed
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1 Answers1

2

try boost::is_same<>, that should do the trick.

Nim
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  • I tried that earlier, it wasn't working, I was using `BOOST_STATIC_ASSERT` though. For some reason it is working now. Thanks Nim. – Hassan Syed May 18 '11 at 13:38