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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03, c++11, c++14
// <optional>
// T shall be an object type and shall satisfy the requirements of Destructible
#include <optional>
using std::optional;
struct X
{
private:
~X() {}
};
int main()
{
using std::optional;
{
// expected-error-re@optional:* 2 {{static_assert failed{{.*}} "instantiation of optional with a reference type is ill-formed}}
optional<int&> opt1;
optional<int&&> opt2;
}
{
// expected-error-re@optional:* {{static_assert failed{{.*}} "instantiation of optional with a non-destructible type is ill-formed"}}
optional<X> opt3;
}
{
// expected-error-re@optional:* {{static_assert failed{{.*}} "instantiation of optional with a non-object type is undefined behavior"}}
// expected-error-re@optional:* {{static_assert failed{{.*}} "instantiation of optional with a non-destructible type is ill-formed}}
optional<void()> opt4;
}
{
// expected-error-re@optional:* {{static_assert failed{{.*}} "instantiation of optional with a non-object type is undefined behavior"}}
// expected-error-re@optional:* {{static_assert failed{{.*}} "instantiation of optional with a non-destructible type is ill-formed}}
// expected-error@optional:* 1+ {{cannot form a reference to 'void'}}
optional<const void> opt4;
}
// FIXME these are garbage diagnostics that Clang should not produce
// expected-error@optional:* 0+ {{is not a base class}}
}
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