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Make is_reference_to_pointer work properly with an abstract class

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[SVN r35498]
This commit is contained in:
Dave Abrahams
2006-10-05 13:51:07 +00:00
parent e2bea194a3
commit afbb75b3cb
1 changed files with 8 additions and 8 deletions
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16
include/boost/detail/indirect_traits.hpp
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@ -388,27 +388,27 @@ typename is_pointer_help<V>::type reference_to_pointer_helper(V&);
outer_no_type reference_to_pointer_helper(...);
template <class T>
struct is_reference_to_pointer
struct reference_to_pointer_impl
{
static T t;
BOOST_STATIC_CONSTANT(
bool, value
= (is_reference<T>::value
&& sizeof((reference_to_pointer_helper)(t)) == sizeof(inner_yes_type))
= (sizeof((reference_to_pointer_helper)(t)) == sizeof(inner_yes_type))
);
typedef mpl::bool_<value> type;
}
template <class T>
struct is_reference_to_pointer
: mpl::eval_if<is_reference<T>, reference_to_pointer_impl<T>, mpl::false_>::type
{
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_reference_to_pointer,(T))
};
template <class T>
struct is_reference_to_function_pointer
: mpl::if_<
is_reference<T>
, is_pointer_to_function_aux<T>
, mpl::bool_<false>
>::type
: mpl::eval_if<is_reference<T>, is_pointer_to_function_aux<T>, false_>::type
{
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_reference_to_function_pointer,(T))
};