| // RUN: %clang_cc1 -Weverything -xc++ -std=c++11 -DCXX11 -verify %s |
| // RUN: %clang_cc1 -Weverything -xc++ -std=c++03 -DCXX03 -verify %s |
| // RUN: %clang_cc1 -Weverything -xobjective-c -DOBJC -verify %s |
| // RUN: %clang_cc1 -Weverything -std=c11 -xc -DC11 -verify %s |
| // RUN: %clang_cc1 -pedantic -std=c11 -xc -DC11 -verify %s |
| // RUN: %clang_cc1 -Weverything -std=c11 -xc -fms-extensions -DMS -verify %s |
| // RUN: %clang_cc1 -Weverything -std=c2x -xc -DC23 -verify %s |
| // RUN: %clang_cc1 -pedantic -std=c2x -xc -DC23 -verify -Wpre-c23-compat %s |
| // RUN: %clang_cc1 -Weverything -std=c23 -xc -DC23 -verify %s |
| // RUN: %clang_cc1 -pedantic -std=c23 -xc -DC23 -verify -Wpre-c23-compat %s |
| // RUN: %clang_cc1 -Weverything -std=c23 -xc -fms-extensions -DC23 -verify %s |
| |
| enum X : int {e}; |
| #if defined(CXX11) |
| // expected-warning@-2{{enumeration types with a fixed underlying type are incompatible with C++98}} |
| #elif defined(CXX03) |
| // expected-warning@-4{{enumeration types with a fixed underlying type are a C++11 extension}} |
| #elif defined(OBJC) |
| // diagnostic |
| #elif defined(C23) |
| // expected-warning@-8{{enumeration types with a fixed underlying type are incompatible with C standards before C23}} |
| #elif defined(C11) |
| // expected-warning@-10{{enumeration types with a fixed underlying type are a C23 extension}} |
| #elif defined(MS) |
| // expected-warning@-12{{enumeration types with a fixed underlying type are a Microsoft extension}} |
| #endif |
| |
| // Don't warn about the forward declaration in any language mode. |
| enum Fwd : int; |
| enum Fwd : int { e2 }; |
| #if !defined(OBJC) && !defined(C23) |
| // expected-warning@-3 {{enumeration types with a fixed underlying type}} |
| // expected-warning@-3 {{enumeration types with a fixed underlying type}} |
| #elif defined(C23) |
| // expected-warning@-6 {{enumeration types with a fixed underlying type are incompatible with C standards before C23}} |
| // expected-warning@-6 {{enumeration types with a fixed underlying type are incompatible with C standards before C23}} |
| #endif |
| |
| // Always error on the incompatible redeclaration. |
| enum BadFwd : int; |
| #if !defined(OBJC) && !defined(C23) |
| // expected-warning@-2 {{enumeration types with a fixed underlying type}} |
| #elif defined(C23) |
| // expected-warning@-4 {{enumeration types with a fixed underlying type are incompatible with C standards before C23}} |
| #endif |
| // expected-note@-6 {{previous declaration is here}} |
| enum BadFwd : char { e3 }; |
| #if !defined(OBJC) && !defined(C23) |
| // expected-warning@-2 {{enumeration types with a fixed underlying type}} |
| #elif defined(C23) |
| // expected-warning@-4 {{enumeration types with a fixed underlying type are incompatible with C standards before C23}} |
| #endif |
| // expected-error@-6 {{enumeration redeclared with different underlying type 'char' (was 'int')}} |
