})
#define CAA_BUILD_BUG_ON_ZERO(cond) (sizeof(struct { int:-!!(cond); }))
-#define CAA_BUILD_BUG_ON(cond) ((void)BUILD_BUG_ON_ZERO(cond))
+#define CAA_BUILD_BUG_ON(cond) ((void)CAA_BUILD_BUG_ON_ZERO(cond))
/*
* __rcu is an annotation that documents RCU pointer accesses that need
#define URCU_FORCE_CAST(type, arg) ((type) (arg))
#endif
-#define caa_is_signed_type(type) (((type) (-1)) < 0)
+#define caa_is_signed_type(type) ((type) -1 < (type) 0)
-#define caa_cast_long_keep_sign(v) \
- (caa_is_signed_type(__typeof__(v)) ? (long) (v) : (unsigned long) (v))
+/*
+ * Sign-extend to long if needed, and output type is unsigned long.
+ */
+#define caa_cast_long_keep_sign(v) \
+ (caa_is_signed_type(__typeof__(v)) ? \
+ (unsigned long) (long) (v) : \
+ (unsigned long) (v))
#endif /* _URCU_COMPILER_H */