ceph/src/boost/libs/hana/test/experimental/printable/optional.cpp

   1 // Copyright Jason Rice 2015
   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/assert.hpp>
   6 #include <boost/hana/experimental/printable.hpp>
   7 #include <boost/hana/integral_constant.hpp>
   8 #include <boost/hana/optional.hpp>
   9
  10 #include <sstream>
  11 namespace hana = boost::hana;
  12
  13
  14 int main() {
  15     {
  16         std::ostringstream ss;
  17         ss << hana::experimental::print(
  18             hana::just(hana::int_c<5>)
  19         );
  20         BOOST_HANA_RUNTIME_CHECK(ss.str() == "just(5)");
  21     }
  22     {
  23         std::ostringstream ss;
  24         ss << hana::experimental::print(
  25             hana::nothing
  26         );
  27         BOOST_HANA_RUNTIME_CHECK(ss.str() == "nothing");
  28     }
  29 }