Function rol64

javascript/packages/core/lib/murmurHash3.ts:88–106

(n: u64, r: number)

}

function rol64(n: u64, r: number): u64 {
  r %= 64;
  
  // istanbul ignore if: here for completeness but never used.
  if (r === 32) {
    return [n[1], n[0]];
  } else if (r < 32) {
    return [
      (n[0] << r) | (n[1] >>> (32 - r)),
      (n[1] << r) | (n[0] >>> (32 - r)),
    ];
  } else {
    r -= 32;
    return [
      (n[1] << r) | (n[0] >>> (32 - r)),
      (n[0] << r) | (n[1] >>> (32 - r)),
    ];
  }
}

function shl64(n: u64, s: number): u64 {
  s %= 64;