| 1 | // RUN: %clang_cc1 -fsyntax-only -verify %s -DTEST1 |
| 2 | // RUN: %clang_cc1 -fsyntax-only -verify %s -DTEST2 |
| 3 | // RUN: %clang_cc1 -fsyntax-only -verify %s -DTEST3 |
| 4 | // RUN: %clang_cc1 -fsyntax-only -verify %s -DTEST4 |
| 5 | // RUN: %clang_cc1 -fsyntax-only -verify %s -DTEST5 |
| 6 | // RUN: %clang_cc1 -fsyntax-only -verify %s -DTEST6 |
| 7 | // RUN: %clang_cc1 -fsyntax-only -verify %s -DTEST7 |
| 8 | // RUN: %clang_cc1 -fsyntax-only -verify %s -DTEST8 |
| 9 | // RUN: %clang_cc1 -fsyntax-only -verify %s -DTEST9 -ffreestanding |
| 10 | |
| 11 | #if TEST1 |
| 12 | int main; // expected-warning{{variable named 'main' with external linkage has undefined behavior}} |
| 13 | |
| 14 | #elif TEST2 |
| 15 | extern int main; // expected-warning{{variable named 'main' with external linkage has undefined behavior}} |
| 16 | |
| 17 | #elif TEST3 |
| 18 | // expected-no-diagnostics |
| 19 | void x() { |
| 20 | static int main; |
| 21 | } |
| 22 | |
| 23 | #elif TEST4 |
| 24 | void x() { |
| 25 | extern int main; // expected-warning{{variable named 'main' with external linkage has undefined behavior}} |
| 26 | } |
| 27 | |
| 28 | #elif TEST5 |
| 29 | // expected-no-diagnostics |
| 30 | void x() { |
| 31 | int main; |
| 32 | } |
| 33 | |
| 34 | #elif TEST6 |
| 35 | // expected-no-diagnostics |
| 36 | static int main; |
| 37 | |
| 38 | #elif TEST7 |
| 39 | // expected-no-diagnostics |
| 40 | void x() { |
| 41 | auto int main; |
| 42 | } |
| 43 | |
| 44 | #elif TEST8 |
| 45 | // expected-no-diagnostics |
| 46 | void x() { |
| 47 | register int main; |
| 48 | } |
| 49 | |
| 50 | #elif TEST9 |
| 51 | // expected-no-diagnostics |
| 52 | int main; |
| 53 | |
| 54 | #else |
| 55 | #error Unknown Test |
| 56 | #endif |
| 57 | |