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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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