| 1 | // RUN: %clang_cc1 %s -verify -Wconversion |
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| 2 | |
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| 3 | // Don't crash (rdar://11168596) |
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| 4 | #define A(desc) _Pragma("clang diagnostic push") _Pragma("clang diagnostic ignored \"-Wparentheses\"") _Pragma("clang diagnostic pop") |
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| 5 | #define B(desc) A(desc) |
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| 6 | B(_Pragma("clang diagnostic ignored \"-Wparentheses\"")) |
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| 7 | |
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| 8 | |
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| 9 | #define EMPTY(x) |
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| 10 | #define INACTIVE(x) EMPTY(x) |
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| 11 | |
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| 12 | #define ID(x) x |
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| 13 | #define ACTIVE(x) ID(x) |
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| 14 | |
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| 15 | // This should be ignored.. |
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| 16 | INACTIVE(_Pragma("clang diagnostic ignored \"-Wconversion\"")) |
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| 17 | |
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| 18 | #define IGNORE_CONV _Pragma("clang diagnostic ignored \"-Wconversion\"") _Pragma("clang diagnostic ignored \"-Wconversion\"") |
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| 19 | |
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| 20 | // ..as should this. |
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| 21 | INACTIVE(IGNORE_CONV) |
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| 22 | |
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| 23 | #define IGNORE_POPPUSH(Pop, Push, W, D) Push W D Pop |
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| 24 | IGNORE_POPPUSH(_Pragma("clang diagnostic pop"), _Pragma("clang diagnostic push"), |
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| 25 | _Pragma("clang diagnostic ignored \"-Wconversion\""), int q = (double)1.0); |
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| 26 | |
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| 27 | int x1 = (double)1.0; // expected-warning {{implicit conversion}} |
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| 28 | |
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| 29 | ACTIVE(_Pragma) ("clang diagnostic ignored \"-Wconversion\"")) // expected-error {{_Pragma takes a parenthesized string literal}} \ |
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| 30 | expected-error {{expected identifier or '('}} expected-error {{expected ')'}} expected-note {{to match this '('}} |
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| 31 | |
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| 32 | // This should disable the warning. |
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| 33 | ACTIVE(IGNORE_CONV) |
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| 34 | |
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| 35 | int x2 = (double)1.0; |
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| 36 | |
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