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- /* 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
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