Merge pull request #408 from sandrine-bailleux/sb/cassert
Make CASSERT() macro callable from anywhere
diff --git a/include/lib/cassert.h b/include/lib/cassert.h
index 0e5529d..e8089cb 100644
--- a/include/lib/cassert.h
+++ b/include/lib/cassert.h
@@ -34,9 +34,12 @@
/*******************************************************************************
* Macro to flag a compile time assertion. It uses the preprocessor to generate
* an invalid C construct if 'cond' evaluates to false.
- * The following compilation error is triggered if the assertion fails:
+ * The following compilation error is triggered if the assertion fails:
* "error: size of array 'msg' is negative"
+ * The 'unused' attribute ensures that the unused typedef does not emit a
+ * compiler warning.
******************************************************************************/
-#define CASSERT(cond, msg) typedef char msg[(cond) ? 1 : -1]
+#define CASSERT(cond, msg) \
+ typedef char msg[(cond) ? 1 : -1] __attribute__((unused))
#endif /* __CASSERT_H__ */