/** * Create an Erlang integer from the given value. * * @param val * the long value to use. */ public OtpErlangLong(BigInteger v) { if (v == null) { throw new NullReferenceException(); } if (v.bitCount() < 64) { val = v.LongValue(); } else { bigVal = v; } }
public void write_big_integer(BigInteger v) { if (v.bitCount() < 64) { this.write_long(v.LongValue(), true); return; } int signum = (v > (BigInteger)0) ? 1 : (v < (BigInteger)0) ? -1 : 0; if (signum < 0) { v = -v; } byte[] magnitude = v.getBytes(); int n = magnitude.Length; // Reverse the array to make it little endian. for (int i = 0, j = n; i < j--; i++) { // Swap [i] with [j] byte b = magnitude[i]; magnitude[i] = magnitude[j]; magnitude[j] = b; } if ((n & 0xFF) == n) { write1(OtpExternal.smallBigTag); write1(n); // length } else { write1(OtpExternal.largeBigTag); write4BE(n); // length } write1(signum < 0 ? 1 : 0); // sign // Write the array writeN(magnitude); }