ceph/src/boost/libs/hana/test/issues/github_260.cpp

   1 // Copyright Louis Dionne 2013-2016
   2 // Distributed under the Boost Software License, Version 1.0.
   3 // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
   4
   5 #include <boost/hana/functional/curry.hpp>
   6 #include <boost/hana/functional/partial.hpp>
   7 #include <boost/hana/functional/reverse_partial.hpp>
   8 #include <boost/hana/tuple.hpp>
   9
  10 #include <tuple>
  11 #include <type_traits>
  12 namespace hana = boost::hana;
  13
  14
  15 struct DefaultConstructible {
  16     DefaultConstructible() = default;
  17 };
  18
  19 int main() {
  20     auto curry_tuple = hana::make_tuple(
  21         std::make_tuple(hana::curry<2>(DefaultConstructible{})(DefaultConstructible{}))
  22     );
  23
  24     auto partial_tuple = hana::make_tuple(
  25         std::make_tuple(hana::partial(DefaultConstructible{}, DefaultConstructible{}))
  26     );
  27
  28     auto reverse_partial_tuple = hana::make_tuple(
  29         std::make_tuple(hana::reverse_partial(DefaultConstructible{}, DefaultConstructible{}))
  30     );
  31
  32     static_assert(std::is_default_constructible<decltype(curry_tuple)>::value, "");
  33     static_assert(std::is_default_constructible<decltype(partial_tuple)>::value, "");
  34     static_assert(std::is_default_constructible<decltype(reverse_partial_tuple)>::value, "");
  35 }