geometry/test/util/tuples.cpp
Adam Wulkiewicz 3402c9101d Replace boost::tuple with std::tuple or custom classes.
Modernize tuple support.
2020-10-21 16:21:06 +02:00

121 lines
3.2 KiB
C++

// Boost.Geometry
// Unit Test
// Copyright (c) 2019-2020 Oracle and/or its affiliates.
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
// Use, modification and distribution is subject to 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 <geometry_test_common.hpp>
#include <boost/geometry/util/tuples.hpp>
namespace bt = boost::tuples;
namespace bgt = boost::geometry::tuples;
namespace bm = boost::mpl;
template <typename T>
struct is_double
: std::is_same<T, double>
{};
template <typename T>
struct is_float
: std::is_same<T, float>
{};
template <typename Tuple>
struct is_boost_tuple
: std::integral_constant<bool, false>
{};
template <typename ...Ts>
struct is_boost_tuple<boost::tuple<Ts...> >
: std::integral_constant<bool, true>
{};
template <typename Tuple>
struct is_boost_tuples_cons
: std::integral_constant<bool, false>
{};
template <typename HT, typename TT>
struct is_boost_tuples_cons<boost::tuples::cons<HT, TT> >
: std::integral_constant<bool, true>
{};
template <typename Tuple>
struct is_std_pair
: std::integral_constant<bool, false>
{};
template <typename F, typename S>
struct is_std_pair<std::pair<F, S> >
: std::integral_constant<bool, true>
{};
template <typename Tuple>
struct is_std_tuple
: std::integral_constant<bool, false>
{};
template <typename ...Ts>
struct is_std_tuple<std::tuple<Ts...> >
: std::integral_constant<bool, true>
{};
template <typename Tuple>
void test_all()
{
typedef Tuple tuple_id;
tuple_id tup_id(1, 2.0);
BOOST_CHECK_EQUAL((bgt::get<0>(tup_id)), 1);
BOOST_CHECK_EQUAL((bgt::get<1>(tup_id)), 2.0);
BOOST_CHECK_EQUAL((bgt::size<tuple_id>::value), 2u);
BOOST_CHECK_EQUAL((bgt::find_index_if<tuple_id, is_double>::value), 1u);
BOOST_CHECK((std::is_same<typename bgt::find_if<tuple_id, is_double>::type, double>::value));
BOOST_CHECK_EQUAL((bgt::find_index_if<tuple_id, is_float>::value), 2u);
BOOST_CHECK((std::is_same<typename bgt::find_if<tuple_id, is_float>::type, bg::tuples::detail::null_type>::value));
typedef typename bgt::push_back<tuple_id, float>::type tuple_idf;
tuple_idf tup_idf = bgt::push_back<tuple_id, float>::apply(tup_id, 3.0f);
BOOST_CHECK_EQUAL((bgt::get<0>(tup_idf)), 1);
BOOST_CHECK_EQUAL((bgt::get<1>(tup_idf)), 2.0);
BOOST_CHECK_EQUAL((bgt::get<2>(tup_idf)), 3.0f);
BOOST_CHECK_EQUAL((bgt::size<tuple_idf>::value), 3u);
BOOST_CHECK_EQUAL((bgt::find_index_if<tuple_idf, is_float>::value), 2u);
BOOST_CHECK((std::is_same<typename bgt::find_if<tuple_idf, is_float>::type, float>::value));
BOOST_CHECK((
(is_boost_tuple<tuple_id>::value && is_boost_tuples_cons<tuple_idf>::value)
|| (!is_boost_tuple<tuple_id>::value && is_std_tuple<tuple_idf>::value)
));
tup_idf = bgt::push_back<tuple_id, float>::apply(std::move(tup_id), 3.0f);
BOOST_CHECK_EQUAL((bgt::get<0>(tup_idf)), 1);
BOOST_CHECK_EQUAL((bgt::get<1>(tup_idf)), 2.0);
BOOST_CHECK_EQUAL((bgt::get<2>(tup_idf)), 3.0f);
}
int test_main(int, char* [])
{
test_all<std::tuple<int, double> >();
test_all<std::pair<int, double> >();
test_all<boost::tuple<int, double> >();
return 0;
}