This library writes a C string pointed by format to a defined output. It works like a standard fprintf C function with some limitations.

Supported format specifiers:

• d -> Signed decimal integer.
• i -> Signed decimal integer.
• u -> Unsigned decimal integer.
• x -> Unsigned hexadecimal integer uppercase .
• X -> Unsigned hexadecimal integer uppercase.
• f -> Floating-point number in fixed point notation, lowercase (up to 10 precision).
• F -> Floating-point number in fixed point notation, uppercase (up to 10 precision).
• c -> Character.
• s -> String of characters.
• p -> Pointer address.
• % -> Two following % will result in single % sent to the stream.
• * -> Variable field width size - it shall be used together with the above format specifiers, for example: "%*s".

Supported format flags:

• - -> Left justification.
• 0 -> Left-pads the number with zeroes.
• + -> Forces to display the result with a plus or minus sign.