73ef4ff3
 Hu Chunming
提交三方库
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/*=============================================================================
Copyright (c) 2017 Paul Fultz II
combine.cpp
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/hof/combine.hpp>
#include "test.hpp"
#include <boost/hof/construct.hpp>
#include <boost/hof/capture.hpp>
#include <utility>
#include <tuple>
template<class T, class U>
struct mini_pair
{
T first;
U second;
template<class X, class Y>
constexpr mini_pair(X&& x, Y&& y)
: first(boost::hof::forward<X>(x)), second(boost::hof::forward<Y>(y))
{}
};
template<class T1, class U1, class T2, class U2>
constexpr bool operator==(const mini_pair<T1, U1>& x, const mini_pair<T2, U2>& y)
{
return x.first == y.first && x.second == y.second;
}
template<class T, class U>
constexpr mini_pair<T, U> make_mini_pair(T x, U y)
{
return mini_pair<T, U>(x, y);
}
BOOST_HOF_TEST_CASE()
{
BOOST_HOF_TEST_CHECK(
boost::hof::combine(
boost::hof::construct<std::tuple>(),
boost::hof::capture_basic(1)(boost::hof::construct<std::pair>()),
boost::hof::capture_basic(2)(boost::hof::construct<std::pair>())
)(2, 4)
== std::make_tuple(std::make_pair(1, 2), std::make_pair(2, 4)));
}
BOOST_HOF_TEST_CASE()
{
BOOST_HOF_TEST_CHECK(
boost::hof::combine(
boost::hof::construct<mini_pair>(),
boost::hof::capture_basic(1)(boost::hof::construct<mini_pair>()),
boost::hof::capture_basic(2)(boost::hof::construct<mini_pair>())
)(2, 4)
== make_mini_pair(make_mini_pair(1, 2), make_mini_pair(2, 4)));
BOOST_HOF_STATIC_TEST_CHECK(
boost::hof::combine(
boost::hof::construct<mini_pair>(),
boost::hof::capture_basic(1)(boost::hof::construct<mini_pair>()),
boost::hof::capture_basic(2)(boost::hof::construct<mini_pair>())
)(2, 4)
== make_mini_pair(make_mini_pair(1, 2), make_mini_pair(2, 4)));
}
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