\u001A (C99)\U00001A (C99)\x1A (encoding-dependent)\032 (encoding-dependent)\u{1A} (C++23)\x{1A} (C++23, encoding-dependent)\o{032} (C++23, encoding-dependent)\U0000001A\u001A\x1A (encoding-dependent)\032 (encoding-dependent)\u001A\u{1A}\u001A\x1A\1A\00001A=1A%1A