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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1408 | serge | 1 | #ifndef TYPECHECK_H_INCLUDED |
| 2 | #define TYPECHECK_H_INCLUDED |
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| 3 | |||
| 4 | /* |
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| 5 | * Check at compile time that something is of a particular type. |
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| 6 | * Always evaluates to 1 so you may use it easily in comparisons. |
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| 7 | */ |
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| 8 | #define typecheck(type,x) \ |
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| 9 | ({ type __dummy; \ |
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| 10 | typeof(x) __dummy2; \ |
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| 11 | (void)(&__dummy == &__dummy2); \ |
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| 12 | 1; \ |
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| 13 | }) |
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| 14 | |||
| 15 | /* |
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| 16 | * Check at compile time that 'function' is a certain type, or is a pointer |
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| 17 | * to that type (needs to use typedef for the function type.) |
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| 18 | */ |
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| 19 | #define typecheck_fn(type,function) \ |
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| 20 | ({ typeof(type) __tmp = function; \ |
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| 21 | (void)__tmp; \ |
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| 22 | }) |
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| 23 | |||
| 24 | #endif /* TYPECHECK_H_INCLUDED */ |