result_of and polymorphic function obj compatibility

[SVN r37962]
This commit is contained in:
Dan Marsden
2007-06-11 07:01:05 +00:00
parent 414b87dbdb
commit 0fcbc5b467
42 changed files with 477 additions and 410 deletions

View File

@ -35,10 +35,14 @@ template <class Base = boost::blank, class RemoveNullary = mpl::false_>
struct test_func
: Base
{
template <class Seq> struct result
template<typename T>
struct result;
template <typename B, typename RN, class Seq>
struct result<test_func<B,RN>(Seq)>
: mpl::if_< mpl::and_< fusion::result_of::empty<Seq>, RemoveNullary >,
boost::blank, mpl::identity<long> >::type
{ };
{};
template <typename Seq>
long operator()(Seq const & seq) const
@ -58,6 +62,8 @@ struct test_func
struct fold_op
{
typedef long result_type;
template <typename T>
long operator()(T const & elem, long value) const
{
@ -70,10 +76,6 @@ struct test_func
elem += sizeof(T);
return value;
}
template <typename T0, typename T1> struct result
: mpl::identity<long>
{ };
};
};
@ -85,9 +87,9 @@ void result_type_tests()
typedef fusion::unfused_generic< test_func<noncopyable, no_nullary_call> > test_func_1;
typedef fusion::unfused_generic< test_func<noncopyable> > test_func_0;
BOOST_TEST(( has_type< test_func_0::result<> >::value ));
BOOST_TEST(( has_type< test_func_1::result<int> >::value ));
BOOST_TEST(( ! has_type< test_func_1::result<> >::value ));
BOOST_TEST(( has_type< test_func_0::result<test_func_0()> >::value ));
BOOST_TEST(( has_type< test_func_1::result<test_func_1(int)> >::value ));
BOOST_TEST(( ! has_type< test_func_1::result<test_func_1()> >::value ));
BOOST_TEST(( is_same< boost::result_of< test_func_0() >::type, long >::value ));
BOOST_TEST(( is_same< boost::result_of< test_func_1(int) >::type, long >::value ));
}