42 lines
1.4 KiB
C++
42 lines
1.4 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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// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
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// XFAIL: clang-15, apple-clang-14
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// checks that CTAD for std::function works properly with static operator() overloads
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#include <functional>
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#include <type_traits>
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struct Except0 {
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static void operator()() {}
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};
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static_assert(std::is_same_v<decltype(std::function{Except0{}}), std::function<void()>>);
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struct Except1 {
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static int operator()(int&) { return 0; }
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};
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static_assert(std::is_same_v<decltype(std::function{Except1{}}), std::function<int(int&)>>);
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struct Except2 {
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static int operator()(int*, long*) { return 0; }
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};
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static_assert(std::is_same_v<decltype(std::function{Except2{}}), std::function<int(int*, long*)>>);
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struct ExceptD {
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static int operator()(int*, long* = nullptr) { return 0; }
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};
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static_assert(std::is_same_v<decltype(std::function{ExceptD{}}), std::function<int(int*, long*)>>);
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struct Noexcept {
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static int operator()(int*, long*) noexcept { return 0; }
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};
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static_assert(std::is_same_v<decltype(std::function{Noexcept{}}), std::function<int(int*, long*)>>);
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