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- // Copyright (C) 2016-2018 T. Zachary Laine
- //
- // Distributed under the Boost Software License, Version 1.0. (See
- // accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt)
- #include <boost/yap/expression.hpp>
- #include <boost/test/minimal.hpp>
- #include <sstream>
- template<typename T>
- using term = boost::yap::terminal<boost::yap::expression, T>;
- template<long long I>
- using place_term =
- boost::yap::terminal<boost::yap::expression, boost::yap::placeholder<I>>;
- template<typename T>
- using ref = boost::yap::expression_ref<boost::yap::expression, T>;
- namespace yap = boost::yap;
- namespace bh = boost::hana;
- int test_main(int, char * [])
- {
- {
- using namespace boost::yap::literals;
- place_term<3> p3 = 3_p;
- int i_ = 42;
- term<int> i{std::move(i_)};
- yap::expression<
- yap::expr_kind::plus,
- bh::tuple<ref<place_term<3> &>, term<int>>>
- expr = p3 + std::move(i);
- yap::expression<
- yap::expr_kind::plus,
- bh::tuple<
- ref<place_term<3> &>,
- yap::expression<
- yap::expr_kind::plus,
- bh::tuple<ref<place_term<3> &>, term<int>>>>>
- unevaluated_expr = p3 + std::move(expr);
- {
- double result = evaluate(p3, 5, 6, 7);
- BOOST_CHECK(result == 7);
- }
- {
- double result = evaluate(expr, std::string("15"), 3, 1);
- BOOST_CHECK(result == 43);
- }
- {
- double result = evaluate(unevaluated_expr, std::string("15"), 2, 3);
- BOOST_CHECK(result == 48);
- }
- }
- return 0;
- }
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