lambdas.cpp 806 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. // This test makes sure that we can use lambdas inside the various
  8. // BOOST_HANA_XXX_ASSERT macros.
  9. template <bool value>
  10. bool runtime_bool() { return value; }
  11. template <bool value>
  12. auto constant_bool() { return make_cnumeric<bool, value>(); }
  13. int main() {
  14. BOOST_HANA_CONSTANT_ASSERT([]{ return constant_bool<true>(); }());
  15. BOOST_HANA_RUNTIME_ASSERT([]{ return runtime_bool<true>(); }());
  16. BOOST_HANA_ASSERT([] { return constant_bool<true>(); }());
  17. BOOST_HANA_ASSERT([] { return runtime_bool<true>(); }());
  18. }