One of several notations for hexadecimal used by programming languages. It did not understand 0eh or $0e to mean the same thing when I tried though. It did how

One of several notations for hexadecimal used by programming languages. It did not understand 0eh or $0e to mean the same thing when I tried though. It did however understand 0o16 (octal) ... and 0b1110 (binary), which is a bit surprising because it is a relatively new addition to C++ (C14) and C (C23).