| /* RUN: %clang_cc1 -E %s -DNO_ERRORS -Werror -Wundef |
| RUN: not %clang_cc1 -E %s |
| */ |
| |
| #ifdef NO_ERRORS |
| /* None of these divisions by zero are in live parts of the expression, do not |
| emit any diagnostics. */ |
| |
| #define MACRO_0 0 |
| #define MACRO_1 1 |
| |
| #if MACRO_0 && 10 / MACRO_0 |
| foo |
| #endif |
| |
| #if MACRO_1 || 10 / MACRO_0 |
| bar |
| #endif |
| |
| #if 0 ? 124/0 : 42 |
| #endif |
| |
| // PR2279 |
| #if 0 ? 1/0: 2 |
| #else |
| #error |
| #endif |
| |
| // PR2279 |
| #if 1 ? 2 ? 3 : 4 : 5 |
| #endif |
| |
| // PR2284 |
| #if 1 ? 0: 1 ? 1/0: 1/0 |
| #endif |
| |
| #else |
| |
| |
| /* The 1/0 is live, it should error out. */ |
| #if 0 && 1 ? 4 : 1 / 0 |
| baz |
| #endif |
| |
| |
| #endif |
| |
| // rdar://6505352 |
| // -Wundef should not warn about use of undefined identifier if not live. |
| #if (!defined(XXX) || XXX > 42) |
| #endif |
| |