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174 lines
8.3 KiB
C++
174 lines
8.3 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// UNSUPPORTED: c++98, c++03
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//
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// <functional>
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//
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// result_of<Fn(ArgTypes...)>
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#include <type_traits>
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#include <memory>
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#include <utility>
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#include "test_macros.h"
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struct wat
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{
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wat& operator*() { return *this; }
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void foo();
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};
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struct F {};
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struct FD : public F {};
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#if TEST_STD_VER > 14
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template <typename T, typename U>
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struct test_invoke_result;
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template <typename Fn, typename ...Args, typename Ret>
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struct test_invoke_result<Fn(Args...), Ret>
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{
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static void call()
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{
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static_assert(std::is_invocable<Fn, Args...>::value, "");
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static_assert(std::is_invocable_r<Ret, Fn, Args...>::value, "");
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ASSERT_SAME_TYPE(Ret, typename std::invoke_result<Fn, Args...>::type);
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ASSERT_SAME_TYPE(Ret, std::invoke_result_t<Fn, Args...>);
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}
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};
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#endif
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template <class T, class U>
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void test_result_of_imp()
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{
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ASSERT_SAME_TYPE(U, typename std::result_of<T>::type);
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#if TEST_STD_VER > 11
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ASSERT_SAME_TYPE(U, std::result_of_t<T>);
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#endif
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#if TEST_STD_VER > 14
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test_invoke_result<T, U>::call();
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#endif
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}
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int main(int, char**)
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{
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{
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typedef char F::*PMD;
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test_result_of_imp<PMD(F &), char &>();
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test_result_of_imp<PMD(F const &), char const &>();
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test_result_of_imp<PMD(F volatile &), char volatile &>();
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test_result_of_imp<PMD(F const volatile &), char const volatile &>();
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test_result_of_imp<PMD(F &&), char &&>();
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test_result_of_imp<PMD(F const &&), char const &&>();
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test_result_of_imp<PMD(F volatile &&), char volatile &&>();
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test_result_of_imp<PMD(F const volatile &&), char const volatile &&>();
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test_result_of_imp<PMD(F ), char &&>();
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test_result_of_imp<PMD(F const ), char &&>();
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test_result_of_imp<PMD(F volatile ), char &&>();
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test_result_of_imp<PMD(F const volatile ), char &&>();
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test_result_of_imp<PMD(FD &), char &>();
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test_result_of_imp<PMD(FD const &), char const &>();
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test_result_of_imp<PMD(FD volatile &), char volatile &>();
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test_result_of_imp<PMD(FD const volatile &), char const volatile &>();
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test_result_of_imp<PMD(FD &&), char &&>();
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test_result_of_imp<PMD(FD const &&), char const &&>();
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test_result_of_imp<PMD(FD volatile &&), char volatile &&>();
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test_result_of_imp<PMD(FD const volatile &&), char const volatile &&>();
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test_result_of_imp<PMD(FD ), char &&>();
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test_result_of_imp<PMD(FD const ), char &&>();
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test_result_of_imp<PMD(FD volatile ), char &&>();
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test_result_of_imp<PMD(FD const volatile ), char &&>();
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test_result_of_imp<PMD(std::unique_ptr<F>), char &>();
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test_result_of_imp<PMD(std::unique_ptr<F const>), const char &>();
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test_result_of_imp<PMD(std::unique_ptr<FD>), char &>();
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test_result_of_imp<PMD(std::unique_ptr<FD const>), const char &>();
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test_result_of_imp<PMD(std::reference_wrapper<F>), char &>();
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test_result_of_imp<PMD(std::reference_wrapper<F const>), const char &>();
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test_result_of_imp<PMD(std::reference_wrapper<FD>), char &>();
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test_result_of_imp<PMD(std::reference_wrapper<FD const>), const char &>();
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}
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{
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test_result_of_imp<int (F::* (F &)) () &, int> ();
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test_result_of_imp<int (F::* (F &)) () const &, int> ();
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test_result_of_imp<int (F::* (F &)) () volatile &, int> ();
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test_result_of_imp<int (F::* (F &)) () const volatile &, int> ();
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test_result_of_imp<int (F::* (F const &)) () const &, int> ();
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test_result_of_imp<int (F::* (F const &)) () const volatile &, int> ();
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test_result_of_imp<int (F::* (F volatile &)) () volatile &, int> ();
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test_result_of_imp<int (F::* (F volatile &)) () const volatile &, int> ();
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test_result_of_imp<int (F::* (F const volatile &)) () const volatile &, int> ();
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test_result_of_imp<int (F::* (F &&)) () &&, int> ();
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test_result_of_imp<int (F::* (F &&)) () const &&, int> ();
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test_result_of_imp<int (F::* (F &&)) () volatile &&, int> ();
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test_result_of_imp<int (F::* (F &&)) () const volatile &&, int> ();
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test_result_of_imp<int (F::* (F const &&)) () const &&, int> ();
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test_result_of_imp<int (F::* (F const &&)) () const volatile &&, int> ();
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test_result_of_imp<int (F::* (F volatile &&)) () volatile &&, int> ();
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test_result_of_imp<int (F::* (F volatile &&)) () const volatile &&, int> ();
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test_result_of_imp<int (F::* (F const volatile &&)) () const volatile &&, int> ();
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test_result_of_imp<int (F::* (F )) () &&, int> ();
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test_result_of_imp<int (F::* (F )) () const &&, int> ();
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test_result_of_imp<int (F::* (F )) () volatile &&, int> ();
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test_result_of_imp<int (F::* (F )) () const volatile &&, int> ();
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test_result_of_imp<int (F::* (F const )) () const &&, int> ();
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test_result_of_imp<int (F::* (F const )) () const volatile &&, int> ();
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test_result_of_imp<int (F::* (F volatile )) () volatile &&, int> ();
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test_result_of_imp<int (F::* (F volatile )) () const volatile &&, int> ();
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test_result_of_imp<int (F::* (F const volatile )) () const volatile &&, int> ();
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}
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{
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test_result_of_imp<int (F::* (FD &)) () &, int> ();
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test_result_of_imp<int (F::* (FD &)) () const &, int> ();
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test_result_of_imp<int (F::* (FD &)) () volatile &, int> ();
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test_result_of_imp<int (F::* (FD &)) () const volatile &, int> ();
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test_result_of_imp<int (F::* (FD const &)) () const &, int> ();
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test_result_of_imp<int (F::* (FD const &)) () const volatile &, int> ();
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test_result_of_imp<int (F::* (FD volatile &)) () volatile &, int> ();
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test_result_of_imp<int (F::* (FD volatile &)) () const volatile &, int> ();
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test_result_of_imp<int (F::* (FD const volatile &)) () const volatile &, int> ();
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test_result_of_imp<int (F::* (FD &&)) () &&, int> ();
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test_result_of_imp<int (F::* (FD &&)) () const &&, int> ();
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test_result_of_imp<int (F::* (FD &&)) () volatile &&, int> ();
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test_result_of_imp<int (F::* (FD &&)) () const volatile &&, int> ();
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test_result_of_imp<int (F::* (FD const &&)) () const &&, int> ();
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test_result_of_imp<int (F::* (FD const &&)) () const volatile &&, int> ();
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test_result_of_imp<int (F::* (FD volatile &&)) () volatile &&, int> ();
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test_result_of_imp<int (F::* (FD volatile &&)) () const volatile &&, int> ();
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test_result_of_imp<int (F::* (FD const volatile &&)) () const volatile &&, int> ();
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test_result_of_imp<int (F::* (FD )) () &&, int> ();
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test_result_of_imp<int (F::* (FD )) () const &&, int> ();
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test_result_of_imp<int (F::* (FD )) () volatile &&, int> ();
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test_result_of_imp<int (F::* (FD )) () const volatile &&, int> ();
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test_result_of_imp<int (F::* (FD const )) () const &&, int> ();
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test_result_of_imp<int (F::* (FD const )) () const volatile &&, int> ();
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test_result_of_imp<int (F::* (FD volatile )) () volatile &&, int> ();
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test_result_of_imp<int (F::* (FD volatile )) () const volatile &&, int> ();
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test_result_of_imp<int (F::* (FD const volatile )) () const volatile &&, int> ();
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}
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{
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test_result_of_imp<int (F::* (std::reference_wrapper<F>)) (), int>();
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test_result_of_imp<int (F::* (std::reference_wrapper<const F>)) () const, int>();
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test_result_of_imp<int (F::* (std::unique_ptr<F> )) (), int>();
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test_result_of_imp<int (F::* (std::unique_ptr<const F> )) () const, int>();
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}
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test_result_of_imp<decltype(&wat::foo)(wat), void>();
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return 0;
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}
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