| 1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
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| 2 | |
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| 3 | void f(int x) { |
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| 4 | char foo[10]; |
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| 5 | int bar[20]; |
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| 6 | char qux[30]; |
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| 7 | |
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| 8 | (void)sizeof(bar + 10); // expected-warning{{sizeof on pointer operation will return size of 'int *' instead of 'int [20]'}} |
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| 9 | (void)sizeof(foo - 20); // expected-warning{{sizeof on pointer operation will return size of 'char *' instead of 'char [10]'}} |
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| 10 | (void)sizeof(bar - x); // expected-warning{{sizeof on pointer operation will return size of 'int *' instead of 'int [20]'}} |
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| 11 | (void)sizeof(foo + x); // expected-warning{{sizeof on pointer operation will return size of 'char *' instead of 'char [10]'}} |
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| 12 | |
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| 13 | // This is ptrdiff_t. |
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| 14 | (void)sizeof(foo - qux); // no-warning |
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| 15 | |
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| 16 | (void)sizeof(foo, x); // no-warning |
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| 17 | (void)sizeof(x, foo); // expected-warning{{sizeof on pointer operation will return size of 'char *' instead of 'char [10]'}} |
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| 18 | } |
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| 19 | |
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