73ef4ff3
 Hu Chunming
提交三方库
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/*=============================================================================
Copyright (c) 2017 Paul Fultz II
infix.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/infix.hpp>
#include <boost/hof/function.hpp>
#include <boost/hof/lambda.hpp>
#include <boost/hof/pipable.hpp>
#include <boost/hof/placeholders.hpp>
#include "test.hpp"
struct sum_f
{
template<class T, class U>
constexpr T operator()(T x, U y) const BOOST_HOF_RETURNS_DEDUCE_NOEXCEPT(x+y)
{
return x+y;
}
};
static constexpr boost::hof::infix_adaptor<sum_f> sum = {};
#if BOOST_HOF_HAS_NOEXCEPT_DEDUCTION
BOOST_HOF_TEST_CASE()
{
static_assert(noexcept(1 <sum> 2), "noexcept infix");
static_assert(!noexcept(std::string() <sum> std::string()), "noexcept infix");
}
#endif
BOOST_HOF_TEST_CASE()
{
BOOST_HOF_TEST_CHECK(3 == (1 <sum> 2));
BOOST_HOF_STATIC_TEST_CHECK(3 == (1 <sum> 2));
BOOST_HOF_TEST_CHECK(3 == (sum(1, 2)));
BOOST_HOF_STATIC_TEST_CHECK(3 == (sum(1, 2)));
}
BOOST_HOF_STATIC_FUNCTION(sum1) = boost::hof::infix(sum_f());
BOOST_HOF_TEST_CASE()
{
BOOST_HOF_TEST_CHECK(3 == (1 <sum1> 2));
BOOST_HOF_STATIC_TEST_CHECK(3 == (1 <sum1> 2));
BOOST_HOF_TEST_CHECK(3 == (sum1(1, 2)));
BOOST_HOF_STATIC_TEST_CHECK(3 == (sum1(1, 2)));
}
BOOST_HOF_STATIC_LAMBDA_FUNCTION(sum2) = boost::hof::infix([](int x, int y) { return x + y; });
BOOST_HOF_TEST_CASE()
{
BOOST_HOF_TEST_CHECK(3 == (1 <sum2> 2));
BOOST_HOF_TEST_CHECK(3 == (sum2(1, 2)));
}
BOOST_HOF_STATIC_FUNCTION(sum3) = boost::hof::infix(boost::hof::_ + boost::hof::_);
BOOST_HOF_TEST_CASE()
{
BOOST_HOF_TEST_CHECK(3 == (1 <sum3> 2));
BOOST_HOF_STATIC_TEST_CHECK(3 == (1 <sum3> 2));
BOOST_HOF_TEST_CHECK(3 == (sum3(1, 2)));
BOOST_HOF_STATIC_TEST_CHECK(3 == (sum3(1, 2)));
}
BOOST_HOF_STATIC_LAMBDA_FUNCTION(sum4) = boost::hof::infix(boost::hof::infix([](int x, int y) { return x + y; }));
BOOST_HOF_TEST_CASE()
{
BOOST_HOF_TEST_CHECK(3 == (1 <sum4> 2));
BOOST_HOF_TEST_CHECK(3 == (sum4(1, 2)));
}
BOOST_HOF_STATIC_FUNCTION(sum5) = boost::hof::infix(boost::hof::infix(boost::hof::_ + boost::hof::_));
BOOST_HOF_TEST_CASE()
{
BOOST_HOF_TEST_CHECK(3 == (1 <sum5> 2));
BOOST_HOF_STATIC_TEST_CHECK(3 == (1 <sum5> 2));
BOOST_HOF_TEST_CHECK(3 == (sum5(1, 2)));
BOOST_HOF_STATIC_TEST_CHECK(3 == (sum5(1, 2)));
}
BOOST_HOF_TEST_CASE()
{
#if (defined(__GNUC__) && !defined (__clang__))
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wparentheses"
#endif
BOOST_HOF_TEST_CHECK(6 == (1 + 2 <sum> 3));
BOOST_HOF_TEST_CHECK(3 == 1 <sum> 2);
#if (defined(__GNUC__) && !defined (__clang__))
#pragma GCC diagnostic pop
#endif
}
struct foo {};
BOOST_HOF_TEST_CASE()
{
auto f = boost::hof::infix([](int, int) { return foo{}; });
auto g = boost::hof::infix([](foo, foo) { return std::string("hello"); });
BOOST_HOF_TEST_CHECK((1 <f> 2 <g> foo{}) == "hello");
}
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