0.0.\u0030\u002E (C99)\U000030\U00002E (C99)\x30\x2E (encoding-dependent)\060\056 (encoding-dependent)\u{30}\u{2E} (C++23)\x{30}\x{2E} (C++23, encoding-dependent)\o{060}\o{056} (C++23, encoding-dependent)\U00000030\U0000002E\u0030\u002E\x30\x2E (encoding-dependent)\060\056 (encoding-dependent)\u0030\u002E\u{30}\u{2E}\u0030\u002E\x30\x2E\30\2E\000030\00002E=30=2E%30%2E