flexible.cpp 986 B

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  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. #include <boost/hana/assert.hpp>
  5. #include <support/cnumeric.hpp>
  6. namespace hana = boost::hana;
  7. template <bool value>
  8. bool runtime_bool() { return value; }
  9. template <bool value>
  10. auto constant_bool() { return make_cnumeric<bool, value>(); }
  11. int main() {
  12. // Make sure it works at function scope
  13. BOOST_HANA_ASSERT(runtime_bool<true>());
  14. BOOST_HANA_ASSERT(constant_bool<true>());
  15. BOOST_HANA_ASSERT_MSG(runtime_bool<true>(), "message");
  16. BOOST_HANA_ASSERT_MSG(constant_bool<true>(), "message");
  17. // Make sure we can reference a local variable
  18. auto ct_yes = constant_bool<true>();
  19. BOOST_HANA_ASSERT(ct_yes);
  20. BOOST_HANA_ASSERT_MSG(ct_yes, "message");
  21. auto rt_yes = runtime_bool<true>();
  22. BOOST_HANA_ASSERT(rt_yes);
  23. BOOST_HANA_ASSERT_MSG(rt_yes, "message");
  24. }