enum-bitfield.cpp
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// RUN: %clang_cc1 -fsyntax-only -pedantic -std=c++11 -verify -triple x86_64-apple-darwin %s
enum E {};
struct Z {};
typedef int Integer;
struct X {
enum E : 1;
enum E : Z; // expected-error{{invalid underlying type}}
enum E2 : int;
enum E3 : Integer;
};
struct Y {
enum E : int(2);
enum E : Z(); // expected-error{{integral constant expression must have integral or unscoped enumeration type, not 'Z'}}
};
namespace pr18587 {
struct A {
enum class B {
C
};
};
const int C = 4;
struct D {
A::B : C;
};
}
enum WithUnderlying : unsigned { wu_value };
struct WithUnderlyingBitfield {
WithUnderlying wu : 3;
} wu = { wu_value };
int want_unsigned(unsigned);
int want_unsigned(int) = delete;
int check_enum_bitfield_promotes_correctly = want_unsigned(wu.wu);