ceph/src/boost/libs/hana/test/assert/lambdas.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
   7 #include <support/cnumeric.hpp>
   8 namespace hana = boost::hana;
   9
  10
  11 // This test makes sure that we can use lambdas inside the various
  12 // BOOST_HANA_XXX_ASSERT macros.
  13
  14 template <bool value>
  15 bool runtime_bool() { return value; }
  16
  17 template <bool value>
  18 auto constant_bool() { return make_cnumeric<bool, value>(); }
  19
  20 int main() {
  21     BOOST_HANA_CONSTANT_ASSERT([]{ return constant_bool<true>(); }());
  22     BOOST_HANA_RUNTIME_ASSERT([]{ return runtime_bool<true>(); }());
  23     BOOST_HANA_ASSERT([] { return constant_bool<true>(); }());
  24     BOOST_HANA_ASSERT([] { return runtime_bool<true>(); }());
  25 }