Merge pull request #408 from sandrine-bailleux/sb/cassert
Make CASSERT() macro callable from anywhere
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@ -34,9 +34,12 @@
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/*******************************************************************************
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/*******************************************************************************
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* Macro to flag a compile time assertion. It uses the preprocessor to generate
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* Macro to flag a compile time assertion. It uses the preprocessor to generate
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* an invalid C construct if 'cond' evaluates to false.
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* an invalid C construct if 'cond' evaluates to false.
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* The following compilation error is triggered if the assertion fails:
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* The following compilation error is triggered if the assertion fails:
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* "error: size of array 'msg' is negative"
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* "error: size of array 'msg' is negative"
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* The 'unused' attribute ensures that the unused typedef does not emit a
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* compiler warning.
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******************************************************************************/
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******************************************************************************/
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#define CASSERT(cond, msg) typedef char msg[(cond) ? 1 : -1]
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#define CASSERT(cond, msg) \
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typedef char msg[(cond) ? 1 : -1] __attribute__((unused))
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#endif /* __CASSERT_H__ */
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#endif /* __CASSERT_H__ */
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