fromSM function
Implementation
BigInt fromSM(List<int> buf, {Endian endian = Endian.big}) {
BigInt ret;
List<int> localBuffer = buf.toList();
if (localBuffer.length == 0) {
return decodeBigIntSV([0]);
}
if (endian == Endian.little) {
localBuffer = buf.reversed.toList();
}
if (localBuffer[0] & 0x80 != 0) {
localBuffer[0] = localBuffer[0] & 0x7f;
ret = decodeBigIntSV(localBuffer);
ret = (-ret);
} else {
ret = decodeBigIntSV(localBuffer);
}
return ret;
}