| 1 | // RUN: %clang_cc1 %s -verify |
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| 2 | |
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| 3 | #define SOME_ADDR (unsigned long long)0 |
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| 4 | |
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| 5 | // PR10837: Warn if a non-pointer-typed expression is folded to a null pointer |
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| 6 | int *p = 0; |
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| 7 | int *q = '\0'; // expected-warning{{expression which evaluates to zero treated as a null pointer constant}} |
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| 8 | int *r = (1 - 1); // expected-warning{{expression which evaluates to zero treated as a null pointer constant}} |
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| 9 | void f() { |
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| 10 | p = 0; |
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| 11 | q = '\0'; // expected-warning{{expression which evaluates to zero treated as a null pointer constant}} |
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| 12 | r = 1 - 1; // expected-warning{{expression which evaluates to zero treated as a null pointer constant}} |
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| 13 | p = SOME_ADDR; // expected-warning{{expression which evaluates to zero treated as a null pointer constant}} |
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| 14 | } |
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| 15 | |
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