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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
// <optional>
// ~optional();
#include <optional>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
using std::optional;
struct PODType {
int value;
int value2;
};
class X
{
public:
static bool dtor_called;
X() = default;
X(const X&) = default;
X& operator=(const X&) = default;
~X() {dtor_called = true;}
};
bool X::dtor_called = false;
int main(int, char**)
{
{
typedef int T;
static_assert(std::is_trivially_destructible<T>::value, "");
static_assert(std::is_trivially_destructible<optional<T>>::value, "");
}
{
typedef double T;
static_assert(std::is_trivially_destructible<T>::value, "");
static_assert(std::is_trivially_destructible<optional<T>>::value, "");
}
{
typedef PODType T;
static_assert(std::is_trivially_destructible<T>::value, "");
static_assert(std::is_trivially_destructible<optional<T>>::value, "");
}
{
typedef X T;
static_assert(!std::is_trivially_destructible<T>::value, "");
static_assert(!std::is_trivially_destructible<optional<T>>::value, "");
{
X x;
optional<X> opt{x};
assert(X::dtor_called == false);
}
assert(X::dtor_called == true);
}
return 0;
}
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