Function x64Xor

src/utils/hashing.ts:127–130

* Provides a XOR of the given int64 values(provided as tuple of two int32). * Result is written back to the first value

(m: number[], n: number[])

 * Result is written back to the first value
 */
function x64Xor(m: number[], n: number[]): void {
  m[0] ^= n[0]
  m[1] ^= n[1]
}

const F1 = [0xff51afd7, 0xed558ccd]
const F2 = [0xc4ceb9fe, 0x1a85ec53]