#ifndef UTIL_H
#define UTIL_H

/*
 * Give hints to the compiler for branch prediction optimization.
 */
#include <stdint.h>
#if defined(__clang__) || (defined(__GNUC__) && (__GNUC__ > 2))
#define likely(c)   (__builtin_expect(!!(c), 1))
#define unlikely(c) (__builtin_expect(!!(c), 0))
#else
#define likely(c)   (c)
#define unlikely(c) (c)
#endif

/* Round up to nearest power of two */
static inline uint32_t next_power_of_two(uint32_t v) {
    /* See: https://graphics.stanford.edu/%7Eseander/bithacks.html#RoundUpPowerOf2 */
    v--;
    v |= v >> 1;
    v |= v >> 2;
    v |= v >> 4;
    v |= v >> 8;
    v |= v >> 16;
    return ++v;
}

#endif // UTIL_H