[Boost-users] boost::mpl::if_

From: Noel Yap (noel.yap_at_[hidden])
Date: 2006-08-02 13:02:25

I'd like to do something like:

  typedef typename boost::mpl::if_<
    typename base::is_container<T>::type,
    typename T::element_type,
    T>::type ElementType_;

such that T may be a primitive type.  The above doesn't work since,
for example, there's no such thing as int::element_type.  Is there a
simple way (eg don't have to do template specialization for all
container types) to do the above?

Thanks,
Noel