public static class WitnessIPAddress {
        private final InetAddress address;
        private final int flags;
        
        public static final int IPV4 = 0x01;
        public static final int IPV6 = 0x02;
        
        public WitnessIPAddress(InetAddress address) {
            this.address = address;
            this.flags = address.getAddress().length == 4 ? IPV4 : IPV6;
        }
        

	{"R14", "R14"},
	{"R15", "R15"},
	{"R8", "R8"},
	{"R9", "R9"},
	{"g", "R14"},
	{"SI", "SI"},
	{"SP", "SP"},
	{"X0", "X0"},
	{"X1", "X1"},
	{"X10", "X10"},
	{"X11", "X11"},
	{"X12", "X12"},
	{"X13", "X13"},
	{"X14", "X14"},
	{"X15", "X15"},
	{"X2", "X2"},
	{"X3", "X3"},
	{"X4", "X4"},
	{"X5", "X5"},
	{"X6", "X6"},
	{"X7", "X7"},
	{"X8", "X8"},
	{"X9", "X9"},

   * @return {@code true} if the argument is a 6to4 address
   */
  public static boolean is6to4Address(Inet6Address ip) {
    byte[] bytes = ip.getAddress();
    return (bytes[0] == (byte) 0x20) && (bytes[1] == (byte) 0x02);
  }

  /**
   * Returns the IPv4 address embedded in a 6to4 address.
   *
   * @param ip {@link Inet6Address} to be examined for embedded IPv4 in 6to4 address

        void testDifferentSessionKeys() throws GeneralSecurityException {
            byte[] sessionKey1 = new byte[16];
            Arrays.fill(sessionKey1, (byte) 0x11);

            byte[] sessionKey2 = new byte[16];
            Arrays.fill(sessionKey2, (byte) 0x22);

            Smb2SigningDigest digest1 = new Smb2SigningDigest(sessionKey1, Smb2Constants.SMB2_DIALECT_0202, null);

0A0B..0A0E    ; disallowed                             # NA   <reserved-0A0B>..<reserved-0A0E>
0A0F..0A10    ; valid                                  # 1.1  GURMUKHI LETTER EE..GURMUKHI LETTER AI
0A11..0A12    ; disallowed                             # NA   <reserved-0A11>..<reserved-0A12>
0A13..0A28    ; valid                                  # 1.1  GURMUKHI LETTER OO..GURMUKHI LETTER NA
0A29          ; disallowed                             # NA   <reserved-0A29>

   * @return {@code true} if the argument is a 6to4 address
   */
  public static boolean is6to4Address(Inet6Address ip) {
    byte[] bytes = ip.getAddress();
    return (bytes[0] == (byte) 0x20) && (bytes[1] == (byte) 0x02);
  }

  /**
   * Returns the IPv4 address embedded in a 6to4 address.
   *
   * @param ip {@link Inet6Address} to be examined for embedded IPv4 in 6to4 address

* 👥 Update FastAPI People - Experts. PR [#13963](https://github.com/fastapi/fastapi/pull/13963) by [@tiangolo](https://github.com/tiangolo).
* ⬆ Bump ruff from 0.11.2 to 0.12.7. PR [#13957](https://github.com/fastapi/fastapi/pull/13957) by [@dependabot[bot]](https://github.com/apps/dependabot).

.12345E+5
1_5.         // == 15.0
0.15e+0_2    // == 15.0

0x1p-2       // == 0.25
0x2.p10      // == 2048.0
0x1.Fp+0     // == 1.9375
0X.8p-0      // == 0.5
0X_1FFFP-16  // == 0.1249847412109375
0x15e-2      // == 0x15e - 2 (integer subtraction)

0x.p1        // invalid: mantissa has no digits
1p-2         // invalid: p exponent requires hexadecimal mantissa
0x1.5e-2     // invalid: hexadecimal mantissa requires p exponent