| // RUN: %clang_cc1 -fdouble-square-bracket-attributes -std=c11 -E -P %s -o - | FileCheck %s |
| // RUN: %clang_cc1 -std=c2x -E -P %s -o - | FileCheck %s |
| |
| #define C2x(x) x: __has_c_attribute(x) |
| |
| // CHECK: fallthrough: 201904L |
| C2x(fallthrough) |
| |
| // CHECK: __nodiscard__: 201904L |
| C2x(__nodiscard__) |
| |
| // CHECK: selectany: 0 |
| C2x(selectany); // Known attribute not supported in C mode |
| |
| // CHECK: frobble: 0 |
| C2x(frobble) // Unknown attribute |
| |
| // CHECK: frobble::frobble: 0 |
| C2x(frobble::frobble) // Unknown vendor namespace |
| |
| // CHECK: clang::annotate: 1 |
| C2x(clang::annotate) |
| |
| // CHECK: deprecated: 201904L |
| C2x(deprecated) |
| |
| // CHECK: maybe_unused: 201904L |
| C2x(maybe_unused) |
| |
| // CHECK: __gnu__::warn_unused_result: 201904L |
| C2x(__gnu__::warn_unused_result) |
| |
| // CHECK: gnu::__warn_unused_result__: 201904L |
| C2x(gnu::__warn_unused_result__) |
| |
| // We do somewhat support the __clang__ vendor namespace, but it is a |
| // predefined macro and thus we encourage users to use _Clang instead. |
| // Because of this, we do not support __has_c_attribute for that |
| // vendor namespace. |
| // |
| // Note, we can't use C2x here because it will expand __clang__ to 1 |
| // too early. |
| // CHECK: 1::fallthrough: 0 |
| __clang__::fallthrough: __has_c_attribute(__clang__::fallthrough) |
