| // RUN: %clang_cc1 -fsyntax-only -Wsigned-enum-bitfield -verify %s --std=c++11 |
| |
| // Enums used in bitfields with no explicitly specified underlying type. |
| void test0() { |
| enum E { E1, E2 }; |
| enum F { F1, F2 }; |
| struct { E e1 : 1; E e2; F f1 : 1; F f2; } s; |
| |
| s.e1 = E1; // expected-warning {{enums in the Microsoft ABI are signed integers by default; consider giving the enum E an unsigned underlying type to make this code portable}} |
| s.f1 = F1; // expected-warning {{enums in the Microsoft ABI are signed integers by default; consider giving the enum F an unsigned underlying type to make this code portable}} |
| |
| s.e2 = E2; |
| s.f2 = F2; |
| } |
| |
| // Enums used in bitfields with an explicit signed underlying type. |
| void test1() { |
| enum E : signed { E1, E2 }; |
| enum F : long { F1, F2 }; |
| struct { E e1 : 1; E e2; F f1 : 1; F f2; } s; |
| |
| s.e1 = E1; |
| s.f1 = F1; |
| |
| s.e2 = E2; |
| s.f2 = F2; |
| } |
| |
| // Enums used in bitfields with an explicitly unsigned underlying type. |
| void test3() { |
| enum E : unsigned { E1, E2 }; |
| enum F : unsigned long { F1, F2 }; |
| struct { E e1 : 1; E e2; F f1 : 1; F f2; } s; |
| |
| s.e1 = E1; |
| s.f1 = F1; |
| |
| s.e2 = E2; |
| s.f2 = F2; |
| } |