Make sure at compile time that the scalar type of the array
requested to be created via P9ARRAY_NEW() matches the scalar
type of the passed auto reference variable (unique pointer).
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <
c1965e2a096835dc9e1d4d659dfb15d96755cbe0.
1633097129.git.qemu_oss@crudebyte.com>
#ifndef QEMU_P9ARRAY_H
#define QEMU_P9ARRAY_H
+#include "qemu/compiler.h"
+
/**
* P9Array provides a mechanism to access arrays in common C-style (e.g. by
* square bracket [] operator) in conjunction with reference variables that
* @param len - amount of array elements to be allocated immediately
*/
#define P9ARRAY_NEW(scalar_type, auto_var, len) \
+ QEMU_BUILD_BUG_MSG( \
+ !__builtin_types_compatible_p(scalar_type, typeof(*auto_var)), \
+ "P9Array scalar type mismatch" \
+ ); \
p9array_new_##scalar_type((&auto_var), len)
#endif /* QEMU_P9ARRAY_H */