#define likely(x) __builtin_expect(!!(x), 1)
#define unlikely(x) __builtin_expect(!!(x), 0)
-#define barrier() asm volatile("" : : : "memory");
+#define barrier() asm volatile("" : : : "memory")
/*
* Instruct the compiler to perform only a single access to a variable
*/
#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&x)
+#ifndef max
+#define max(a,b) ((a)>(b)?(a):(b))
+#endif
+
+#ifndef min
+#define min(a,b) ((a)<(b)?(a):(b))
+#endif
+
+#if defined(__SIZEOF_LONG__)
+#define BITS_PER_LONG (__SIZEOF_LONG__ * 8)
+#elif defined(_LP64)
+#define BITS_PER_LONG 64
+#else
+#define BITS_PER_LONG 32
+#endif
+
#endif /* _URCU_COMPILER_H */