| Nathan Huckleberry | 1e0affb | 2019-08-20 17:16:49 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -fsyntax-only -std=gnu89 -verify -Wimplicit-fallthrough %s |
| 2 | // RUN: %clang_cc1 -fsyntax-only -std=gnu99 -verify -Wimplicit-fallthrough %s |
| 3 | // RUN: %clang_cc1 -fsyntax-only -std=c99 -verify -Wimplicit-fallthrough %s |
| 4 | // RUN: %clang_cc1 -fsyntax-only -std=c11 -verify -Wimplicit-fallthrough %s |
| 5 | // RUN: %clang_cc1 -fsyntax-only -std=c2x -DC2X -verify -Wimplicit-fallthrough %s |
| 6 | |
| 7 | int fallthrough_attribute_spelling(int n) { |
| 8 | switch (n) { |
| 9 | case 0: |
| 10 | n++; |
| 11 | case 1: |
| 12 | #if defined(C2X) |
| 13 | // expected-warning@-2{{unannotated fall-through between switch labels}} expected-note@-2{{insert '[[fallthrough]];' to silence this warning}} expected-note@-2{{insert 'break;' to avoid fall-through}} |
| 14 | #else |
| 15 | // expected-warning@-4{{unannotated fall-through between switch labels}} expected-note@-4{{insert '__attribute__((fallthrough));' to silence this warning}} expected-note@-4{{insert 'break;' to avoid fall-through}} |
| 16 | #endif |
| 17 | n++; |
| 18 | __attribute__((fallthrough)); |
| 19 | case 2: |
| 20 | n++; |
| 21 | break; |
| 22 | } |
| 23 | return n; |
| 24 | } |