ceph/src/boost/libs/hana/test/pair/empty_storage.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/pair.hpp>
   6 namespace hana = boost::hana;
   7
   8
   9 // Make sure the storage of a pair is compressed
  10 struct empty { };
  11 static_assert(sizeof(hana::pair<empty, int>) == sizeof(int), "");
  12 static_assert(sizeof(hana::pair<int, empty>) == sizeof(int), "");
  13
  14 int main() { }