> After thinking about it longer, I still think that there is a problem. The
> code seems "twisted" to me. Let me try to explain it, I start by some
> observations (all for the case of
> BOOST_TT_HAS_CONFORMING_IS_CLASS_IMPLEMENTATION not being set):
>
> is_scalar is based on 3.9/10, which says that enums are scalars.
> Currently, is_scalar doesn't detect enums.
Oh yes it does :-)
template <typename T>
struct is_scalar_impl
{
BOOST_STATIC_CONSTANT(bool, value =
(::boost::type_traits::ice_or<
::boost::is_arithmetic<T>::value,
::boost::is_enum<T>::value,
::boost::is_pointer<T>::value,
::boost::is_member_pointer<T>::value
>::value));
};
> is_class needs is_scalar
Oh no it doesn't :-)
> is_enum needs is_class or it will detect classes which are convertible to
> int as enums.
Oh no it doesn't :-)
still smilingly yours ;-)
John Maddock
http://ourworld.compuserve.com/homepages/john_maddock/index.htm
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