libs/hana/test/assert/commas.cpp

   1 // Copyright Louis Dionne 2013-2017
   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 conditions with multiple comma-separated
  12 // arguments to the non-MSG versions of the BOOST_HANA_XXX_ASSERT macros.
  13
  14 template <bool value, typename ...>
  15 bool runtime_bool() { return value; }
  16
  17 template <bool value, typename ...>
  18 auto constant_bool() { return make_cnumeric<bool, value>(); }
  19
  20 int main() {
  21     BOOST_HANA_CONSTANT_ASSERT(constant_bool<true, void>());
  22     BOOST_HANA_CONSTANT_ASSERT(constant_bool<true, void, void>());
  23     BOOST_HANA_CONSTANT_ASSERT(constant_bool<true, void, void, void>());
  24
  25     BOOST_HANA_RUNTIME_ASSERT(runtime_bool<true, void>());
  26     BOOST_HANA_RUNTIME_ASSERT(runtime_bool<true, void, void>());
  27     BOOST_HANA_RUNTIME_ASSERT(runtime_bool<true, void, void, void>());
  28
  29     BOOST_HANA_ASSERT(runtime_bool<true, void>());
  30     BOOST_HANA_ASSERT(runtime_bool<true, void, void>());
  31     BOOST_HANA_ASSERT(runtime_bool<true, void, void, void>());
  32     BOOST_HANA_ASSERT(constant_bool<true, void>());
  33     BOOST_HANA_ASSERT(constant_bool<true, void, void>());
  34     BOOST_HANA_ASSERT(constant_bool<true, void, void, void>());
  35 }