| 1 | // RUN: %clang_cc1 %s -Eonly -Werror=undef -verify |
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| 2 | // RUN: %clang_cc1 %s -Eonly -Werror-undef -verify |
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| 3 | |
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| 4 | extern int x; |
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| 5 | |
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| 6 | #if foo // expected-error {{'foo' is not defined, evaluates to 0}} |
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| 7 | #endif |
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| 8 | |
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| 9 | #ifdef foo |
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| 10 | #endif |
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| 11 | |
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| 12 | #if defined(foo) |
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| 13 | #endif |
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| 14 | |
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| 15 | |
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| 16 | // PR3938 |
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| 17 | #if 0 |
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| 18 | #ifdef D |
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| 19 | #else 1 // Should not warn due to C99 6.10p4 |
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| 20 | #endif |
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| 21 | #endif |
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| 22 | |
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| 23 | // rdar://9475098 |
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| 24 | #if 0 |
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| 25 | #else 1 // expected-warning {{extra tokens}} |
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| 26 | #endif |
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| 27 | |
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| 28 | // PR6852 |
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| 29 | #if 'somesillylongthing' // expected-warning {{character constant too long for its type}} \ |
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| 30 | // expected-warning {{multi-character character constant}} |
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| 31 | #endif |
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| 32 | |
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