Function readBigInt64BE

lib/internal/buffer.js:156–172

(offset = 0)

}

function readBigInt64BE(offset = 0) {
  validateNumber(offset, 'offset');
  const first = this[offset];
  const last = this[offset + 7];
  if (first === undefined || last === undefined)
    boundsError(offset, this.length - 8);

  const val = (first << 24) + // Overflow
    this[++offset] * 2 ** 16 +
    this[++offset] * 2 ** 8 +
    this[++offset];
  return (BigInt(val) << 32n) +
    BigInt(this[++offset] * 2 ** 24 +
    this[++offset] * 2 ** 16 +
    this[++offset] * 2 ** 8 +
    last);
}

function readUIntLE(offset, byteLength) {
  if (offset === undefined)