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