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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17
// UNSUPPORTED: libcpp-no-concepts
// template<class T, class... Args>
// concept constructible_from;
// destructible<T> && is_constructible_v<T, Args...>;
#include <array>
#include <concepts>
#include <memory>
#include <string>
#include <type_traits>
struct Empty {};
struct Defaulted {
~Defaulted() = default;
};
struct Deleted {
~Deleted() = delete;
};
struct Noexcept {
~Noexcept() noexcept;
};
struct NoexceptTrue {
~NoexceptTrue() noexcept(true);
};
struct NoexceptFalse {
~NoexceptFalse() noexcept(false);
};
struct Protected {
protected:
~Protected() = default;
};
struct Private {
private:
~Private() = default;
};
template <class T>
struct NoexceptDependant {
~NoexceptDependant() noexcept(std::is_same_v<T, int>);
};
template <class T, class... Args>
void test() {
static_assert(std::constructible_from<T, Args...> ==
(std::destructible<T> && std::is_constructible_v<T, Args...>));
}
void test() {
test<bool>();
test<bool, bool>();
test<char>();
test<char, char>();
test<char, int>();
test<int>();
test<int, int>();
test<int, int, int>();
test<double, int>();
test<double, float>();
test<double, long double>();
test<void>();
test<void, bool>();
test<void, int>();
test<void*>();
test<void*, std::nullptr_t>();
test<int*>();
test<int*, std::nullptr_t>();
test<int[], int, int, int>();
test<int[1]>();
test<int[1], int>();
test<int[1], int, int>();
test<int (*)(int)>();
test<int (*)(int), int>();
test<int (*)(int), double>();
test<int (*)(int), std::nullptr_t>();
test<int (*)(int), int (*)(int)>();
test<void (Empty::*)(const int&)>();
test<void (Empty::*)(const int&), std::nullptr_t>();
test<void (Empty::*)(const int&) const>();
test<void (Empty::*)(const int&) const, void (Empty::*)(const int&)>();
test<void (Empty::*)(const int&) volatile>();
test<void (Empty::*)(const int&) volatile,
void (Empty::*)(const int&) const volatile>();
test<void (Empty::*)(const int&) const volatile>();
test<void (Empty::*)(const int&) const volatile, double>();
test<void (Empty::*)(const int&)&>();
test<void (Empty::*)(const int&)&, void (Empty::*)(const int&) &&>();
test<void (Empty::*)(const int&) &&>();
test<void (Empty::*)(const int&)&&, void (Empty::*)(const int&)>();
test<void (Empty::*)(const int&) throw()>();
test<void (Empty::*)(const int&) throw(),
void(Empty::*)(const int&) noexcept(true)>();
test<void (Empty::*)(const int&) noexcept>();
test<void (Empty::*)(const int&) noexcept(true)>();
test<void (Empty::*)(const int&) noexcept(true),
void (Empty::*)(const int&) noexcept(false)>();
test<void (Empty::*)(const int&) noexcept(false)>();
test<int&>();
test<int&, int>();
test<int&&>();
test<int&&, int>();
test<Empty>();
test<Defaulted>();
test<Deleted>();
test<NoexceptTrue>();
test<NoexceptFalse>();
test<Noexcept>();
test<Protected>();
test<Private>();
test<NoexceptDependant<int> >();
test<NoexceptDependant<double> >();
test<std::string, char*>();
test<std::string, const char*>();
test<std::string, std::string&>();
test<std::string, std::initializer_list<char> >();
test<std::unique_ptr<int>, std::unique_ptr<int> >();
test<std::unique_ptr<int>, std::unique_ptr<int>&>();
test<std::unique_ptr<int>, std::unique_ptr<int>&&>();
test<std::array<int, 1> >();
test<std::array<int, 1>, int>();
test<std::array<int, 1>, int, int>();
}
int main(int, char**) { return 0; }
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