ceph/src/boost/libs/hana/example/optional/value_or.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/assert.hpp>
   6 #include <boost/hana/optional.hpp>
   7 namespace hana = boost::hana;
   8
   9
  10 static_assert(hana::just(1).value_or('x') == 1, "");
  11 static_assert(hana::nothing.value_or('x') == 'x', "");
  12
  13 int main() { }