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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/mpl/assert.hpp>
#include <boost/test/minimal.hpp>
template<typename T>
using term = boost::yap::terminal<boost::yap::expression, T>;
template<typename T>
using ref = boost::yap::expression_ref<boost::yap::expression, T>;
namespace yap = boost::yap;
namespace bh = boost::hana;
template<boost::yap::expr_kind Kind, typename Tuple>
struct user_expr
{
static boost::yap::expr_kind const kind = Kind;
Tuple elements;
};
BOOST_YAP_USER_BINARY_OPERATOR(plus, user_expr, user_expr)
template<typename T>
using user_term = boost::yap::terminal<user_expr, T>;
template<typename T>
using user_ref = boost::yap::expression_ref<user_expr, T>;
int test_main(int, char * [])
{
{
{
BOOST_MPL_ASSERT((std::is_same<decltype(yap::value(1.0)), double &&>));
BOOST_CHECK(yap::value(1.0) == 1.0);
}
{
double d = 2.0;
BOOST_MPL_ASSERT((std::is_same<decltype(yap::value(d)), double &>));
BOOST_CHECK(yap::value(d) == 2.0);
}
{
double const d = 3.0;
BOOST_MPL_ASSERT(
(std::is_same<decltype(yap::value(d)), double const &>));
BOOST_CHECK(yap::value(d) == 3.0);
}
}
{
{
term<double> td = {{1.0}};
BOOST_MPL_ASSERT(
(std::is_same<decltype(yap::value(std::move(td))), double &&>));
BOOST_CHECK(yap::value(std::move(td)) == 1.0);
}
{
term<double> td = {{2.0}};
BOOST_MPL_ASSERT((std::is_same<decltype(yap::value(td)), double &>));
BOOST_CHECK(yap::value(td) == 2.0);
}
{
term<double> const td = {{3.0}};
BOOST_MPL_ASSERT(
(std::is_same<decltype(yap::value(td)), double const &>));
BOOST_CHECK(yap::value(td) == 3.0);
}
term<double> unity = {{1.0}};
using plus_expr_type = yap::expression<
yap::expr_kind::plus,
bh::tuple<ref<term<double> &>, term<int>>>;
plus_expr_type plus_expr = unity + term<int>{{1}};
{
ref<term<double> &> ref = bh::front(plus_expr.elements);
BOOST_MPL_ASSERT(
(std::is_same<decltype(yap::value(std::move(ref))), double &>));
}
{
ref<term<double> &> ref = bh::front(plus_expr.elements);
BOOST_MPL_ASSERT((std::is_same<decltype(yap::value(ref)), double &>));
}
{
ref<term<double> &> const ref = bh::front(plus_expr.elements);
BOOST_MPL_ASSERT((std::is_same<decltype(yap::value(ref)), double &>));
}
{
term<double> const unity = {{1.0}};
yap::expression<
yap::expr_kind::plus,
bh::tuple<ref<term<double> const &>, term<int>>>
plus_expr = unity + term<int>{{1}};
{
ref<term<double> const &> ref = bh::front(plus_expr.elements);
BOOST_MPL_ASSERT((std::is_same<
decltype(yap::value(std::move(ref))),
double const &>));
}
{
ref<term<double> const &> ref = bh::front(plus_expr.elements);
BOOST_MPL_ASSERT(
(std::is_same<decltype(yap::value(ref)), double const &>));
}
{
ref<term<double> const &> const ref = bh::front(plus_expr.elements);
BOOST_MPL_ASSERT(
(std::is_same<decltype(yap::value(ref)), double const &>));
}
}
}
{
{
user_term<double> td = {{1.0}};
BOOST_MPL_ASSERT(
(std::is_same<decltype(yap::value(std::move(td))), double &&>));
BOOST_CHECK(yap::value(std::move(td)) == 1.0);
}
{
user_term<double> td = {{2.0}};
BOOST_MPL_ASSERT((std::is_same<decltype(yap::value(td)), double &>));
BOOST_CHECK(yap::value(td) == 2.0);
}
{
user_term<double> const td = {{3.0}};
BOOST_MPL_ASSERT(
(std::is_same<decltype(yap::value(td)), double const &>));
BOOST_CHECK(yap::value(td) == 3.0);
}
user_term<double> unity = {{1.0}};
using plus_expr_type = user_expr<
yap::expr_kind::plus,
bh::tuple<user_ref<user_term<double> &>, user_term<int>>>;
plus_expr_type plus_expr = unity + user_term<int>{{1}};
{
user_ref<user_term<double> &> ref = bh::front(plus_expr.elements);
BOOST_MPL_ASSERT(
(std::is_same<decltype(yap::value(std::move(ref))), double &>));
}
{
user_ref<user_term<double> &> ref = bh::front(plus_expr.elements);
BOOST_MPL_ASSERT((std::is_same<decltype(yap::value(ref)), double &>));
}
{
user_ref<user_term<double> &> const ref = bh::front(plus_expr.elements);
BOOST_MPL_ASSERT((std::is_same<decltype(yap::value(ref)), double &>));
}
{
user_term<double> const unity = {{1.0}};
user_expr<
yap::expr_kind::plus,
bh::tuple<user_ref<user_term<double> const &>, user_term<int>>>
plus_expr = unity + user_term<int>{{1}};
{
user_ref<user_term<double> const &> ref =
bh::front(plus_expr.elements);
BOOST_MPL_ASSERT((std::is_same<
decltype(yap::value(std::move(ref))),
double const &>));
}
{
user_ref<user_term<double> const &> ref =
bh::front(plus_expr.elements);
BOOST_MPL_ASSERT(
(std::is_same<decltype(yap::value(ref)), double const &>));
}
{
user_ref<user_term<double> const &> const ref =
bh::front(plus_expr.elements);
BOOST_MPL_ASSERT(
(std::is_same<decltype(yap::value(ref)), double const &>));
}
}
}
return 0;
}
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