1 // RUN: %clang_cc1 -verify %s 2 3 struct A { 4 enum E : unsigned {}; 5 enum E2 : int {}; 6 [[clang::preferred_type(E)]] unsigned b : 2; 7 [[clang::preferred_type(E)]] int b2 : 2; 8 [[clang::preferred_type(E2)]] const unsigned b3 : 2; 9 [[clang::preferred_type(bool)]] unsigned b4 : 1; 10 [[clang::preferred_type(bool)]] unsigned b5 : 2; 11 [[clang::preferred_type()]] unsigned b6 : 2; 12 // expected-error@-1 {{'preferred_type' attribute takes one argument}} 13 [[clang::preferred_type]] unsigned b7 : 2; 14 // expected-error@-1 {{'preferred_type' attribute takes one argument}} 15 [[clang::preferred_type(E, int)]] unsigned b8 : 2; 16 // expected-error@-1 {{expected ')'}} 17 // expected-error@-2 {{expected ','}} 18 // expected-warning@-3 {{unknown attribute 'int' ignored}} 19 }; 20