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// RUN: %clang_cc1 -std=c++2a -verify=expected,cxx2a %s
// RUN: %clang_cc1 -std=c++2b -verify=expected %s
// p3: if the function is a constructor or destructor, its class shall not have
// any virtual base classes;
namespace vbase {
struct A {};
struct B : virtual A { // expected-note {{virtual}}
constexpr ~B() {} // expected-error {{constexpr member function not allowed in struct with virtual base class}}
};
}
namespace contents {
struct A {
constexpr ~A() {
return;
goto x; // cxx2a-warning {{use of this statement in a constexpr function is a C++2b extension}}
x: ;
}
};
struct B {
constexpr ~B() {
x:; // cxx2a-warning {{use of this statement in a constexpr function is a C++2b extension}}
}
};
struct Nonlit { // cxx2a-note {{'Nonlit' is not literal because}}
Nonlit();
};
struct C {
constexpr ~C() {
return;
Nonlit nl; // cxx2a-error {{variable of non-literal type 'contents::Nonlit' cannot be defined in a constexpr function before C++2b}}
}
};
struct D {
constexpr ~D() {
return;
static int a; // cxx2a-warning {{definition of a static variable in a constexpr function is a C++2b extension}}
}
};
struct E {
constexpr ~E() {
return;
thread_local int e; // cxx2a-warning {{definition of a thread_local variable in a constexpr function is a C++2b extension}}
}
};
struct F {
constexpr ~F() {
return;
extern int f;
}
};
}
// p5: for every subobject of class type or (possibly multi-dimensional) array
// thereof, that class type shall have a constexpr destructor
namespace subobject {
struct A {
~A();
};
struct B : A { // expected-note {{here}}
constexpr ~B() {} // expected-error {{destructor cannot be declared constexpr because base class 'subobject::A' does not have a constexpr destructor}}
};
struct C {
A a; // expected-note {{here}}
constexpr ~C() {} // expected-error {{destructor cannot be declared constexpr because data member 'a' does not have a constexpr destructor}}
};
struct D : A {
A a;
constexpr ~D() = delete;
};
}
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