shiftLeft method
Implementation
LexoInteger shiftLeft([int times = 1]) {
if (identical(times, 0)) {
return this;
}
if (times < 0) {
return shiftRight(times.abs());
}
final nmag = List<int>.filled(mag.length + times, 0);
lexoHelper.arrayCopy(mag, 0, nmag, times, mag.length);
return LexoInteger.make(sys, sign, nmag);
}