| /* 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 | |