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96 lines
2.2 KiB
C++
96 lines
2.2 KiB
C++
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/**
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* Copyright 2015 Denis Blank <denis.blank@outlook.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define CATCH_CONFIG_RUNNER
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#include "catch.hpp"
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void test_mockup();
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void test_incubator();
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int main(int argc, char* const argv[])
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{
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test_mockup();
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test_incubator();
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int const result = Catch::Session().run(argc, argv);
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// Attach breakpoint here ,-)
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return result;
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}
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template<typename T, typename V>
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using cross_forward_t =
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typename std::conditional<
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std::is_rvalue_reference<T&&>::value,
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typename std::decay<V>::type&&,
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typename std::decay<V>::type&
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>::type;
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template<typename T, typename V>
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cross_forward_t<T, V> cross_forward(V&& var)
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{
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return static_cast<cross_forward_t<T, V>&&>(var);
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}
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struct TestContainer
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{
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std::shared_ptr<int> ptr;
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};
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template<typename T>
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TestContainer extract(T&& c)
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{
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return TestContainer{cross_forward<T>(c.ptr)};
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}
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TEST_CASE("CrossForward tests", "[CrossForward]")
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{
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TestContainer con;
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con.ptr = std::make_shared<int>(0);
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static_assert(std::is_same<
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cross_forward_t<
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TestContainer&&,
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std::unique_ptr<int>&
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>,
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std::unique_ptr<int>&&>::value,
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"cross_forward returns wrong type!");
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static_assert(std::is_same<
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cross_forward_t<
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TestContainer&,
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std::unique_ptr<int>&
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>,
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std::unique_ptr<int>&>::value,
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"cross_forward returns wrong type!");
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SECTION("forward l-value references")
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{
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extract(con);
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REQUIRE(con.ptr.get());
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}
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SECTION("forward r-value references")
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{
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extract(std::move(con));
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REQUIRE_FALSE(con.ptr.get());
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}
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}
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