presto-orc/src/main/java/io/prestosql/orc/stream/LongDecode.java/LongDecode/decodeBitWidth
class LongDecode:    public static int decodeBitWidth(int n)
    {
        if (n >= ONE.ordinal() && n <= TWENTY_FOUR.ordinal()) {
            return n + 1;
        }
        else if (n == TWENTY_SIX.ordinal()) {
            return 26;
        }
        else if (n == TWENTY_EIGHT.ordinal()) {
            return 28;
        }
        else if (n == THIRTY.ordinal()) {
            return 30;
        }
        else if (n == THIRTY_TWO.ordinal()) {
            return 32;
        }
        else if (n == FORTY.ordinal()) {
            return 40;
        }
        else if (n == FORTY_EIGHT.ordinal()) {
            return 48;
        }
        else if (n == FIFTY_SIX.ordinal()) {
            return 56;
        }
        else {
            return 64;
        }
    }