Fix piecewise_construct pair constructor for compilers with variadics and constructor forwarding. Current code unconditionally moves instead of forwarding.

This commit is contained in:
Ion Gaztañaga
2016-08-24 01:52:53 +02:00
parent 79a75f470e
commit db5c24e0e7
3 changed files with 25 additions and 12 deletions
+13
View File
@@ -135,6 +135,19 @@ int main ()
BOOST_TEST(std::get<2>(p.first) == 32.);
BOOST_TEST(p.second == 'b');
}
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
typedef container_detail::pair<test::movable_int, test::movable_int> movable_pair_t;
typedef container_detail::pair<movable_pair_t, movable_pair_t> movable_pair_pair_t;
test::movable_int a(1), b(2), c(3), d(4);
movable_pair_pair_t p( piecewise_construct
, container_detail::forward_as_tuple(boost::move(a), boost::move(b))
, container_detail::forward_as_tuple(boost::move(c), boost::move(d))
);
BOOST_TEST(p.first.first == 1);
BOOST_TEST(p.first.second == 2);
BOOST_TEST(p.second.first == 3);
BOOST_TEST(p.second.second == 4);
#endif
}
#endif //#!defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_NO_CXX11_HDR_TUPLE)
return ::boost::report_errors();