#ifndef COM_BITS_H
#define COM_BITS_H

#include "def.h"
#include <stdint.h>

/* How many bits needed to represent a given number */
/* Alternitive semntic: nearest upper power of two */
static inline uint8_t com_bits_needed(uint32_t v) {
  // #ifdef COM_DEF_COMPILE_MODERN
  return v == 0 ? 1 : 32 - __builtin_clz(v);
  // #else
  // #endif
  //   if (v == 0)
  //     return 1;

  //   v--;
  //   v |= v >> 1;
  //   v |= v >> 2;
  //   v |= v >> 4;
  //   v |= v >> 8;
  //   v |= v >> 16;
  //   v++;

  //   return v;
}

/* Next aligned value. */
static inline uint32_t com_bits_nalign(uint32_t v, uint8_t a) {
  return (v + (a - 1)) & ~(a - 1);
}

#endif