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// PR c++/106649
// P2448 - Relaxing some constexpr restrictions
// { dg-do compile { target c++20 } }
// { dg-options "" }
// The definition of a constexpr destructor whose function-body is not
// =delete shall additionally satisfy the following requirement:
// (5.1) for every subobject of class type or (possibly multi-dimensional)
// array thereof, that class type shall have a constexpr destructor.
struct B {
B() { }
~B() { }
};
struct T : B {
constexpr ~T() { } // { dg-warning "call to" "" { target c++20_down } }
};
struct S {
constexpr S() = default; // was error: implicit S() is not constexpr, now OK
~S() noexcept(false) = default; // OK, despite mismatched exception specification
private:
int i;
S(S&); // OK: private copy constructor
};
S::S(S&) = default; // OK: defines copy constructor
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