Function readInt48LE

lib/internal/buffer.js:362–375

(buf, offset = 0)

}

function readInt48LE(buf, offset = 0) {
  validateNumber(offset, 'offset');
  const first = buf[offset];
  const last = buf[offset + 5];
  if (first === undefined || last === undefined)
    boundsError(offset, buf.length - 6);

  const val = buf[offset + 4] + last * 2 ** 8;
  return (val | (val & 2 ** 15) * 0x1fffe) * 2 ** 32 +
    first +
    buf[++offset] * 2 ** 8 +
    buf[++offset] * 2 ** 16 +
    buf[++offset] * 2 ** 24;
}

function readInt40LE(buf, offset = 0) {
  validateNumber(offset, 'offset');