toSMBigEndian function
Implementation
List<int> toSMBigEndian(BigInt value) {
List<int> buf = [];
if (value.compareTo(BigInt.zero) == -1) {
buf = toBuffer(-value);
if (buf[0] & 0x80 != 0) {
buf = [0x80] + buf;
} else {
buf[0] = buf[0] | 0x80;
}
} else {
buf = toBuffer(value);
if (buf[0] & 0x80 != 0) {
buf = [0x00] + buf;
}
}
if (buf.length == 1 && buf[0] == 0) {
buf = [];
}
return buf;
}