Function popcount

packages/effect/src/internal/hashMap/bitwise.ts:10–17

(x: number)

 * @internal
 */
export function popcount(x: number) {
  x -= (x >> 1) & 0x55555555
  x = (x & 0x33333333) + ((x >> 2) & 0x33333333)
  x = (x + (x >> 4)) & 0x0f0f0f0f
  x += x >> 8
  x += x >> 16
  return x & 0x7f
}

/** @internal */
export function hashFragment(shift: number, h: number) {