#define is_valid_mask(x) is_power_of_two(1LU + (x) + low_bit_mask(x))
/*
- * Macro's to find first set bit in a variable.
- * These macro's behaves the same as the __ffs() function with
+ * Macros to find first set bit in a variable.
+ * These macros behave the same as the __ffs() functions but
* the most important difference that this is done during
* compile-time rather then run-time.
*/