getLong method
Get a long, 64 bits.
Implementation
int getLong() {
final value = (_data[_offset] << 56) |
(_data[_offset + 1] << 48) |
(_data[_offset + 2] << 40) |
(_data[_offset + 3] << 32) |
(_data[_offset + 4] << 24) |
(_data[_offset + 5] << 16) |
(_data[_offset + 6] << 8) |
(_data[_offset + 7]);
_offset += 8;
return value;
}