Function malachite_base::num::conversion::string::to_string::digit_to_display_byte_upper

pub const fn digit_to_display_byte_upper(b: u8) -> Option<u8>

Converts a digit to a byte corresponding to a numeric or uppercase alphabetic char that represents the digit.

Digits from 0 to 9 become bytes corresponding to chars from ‘0’ to ‘9’. Digits from 10 to 35 become bytes representing the lowercase chars ‘A’ to ‘Z’. Passing a digit greater than 35 gives a None.

Worst-case complexity

Constant time and additional memory.

Examples

use malachite_base::num::conversion::string::to_string::digit_to_display_byte_upper;

assert_eq!(digit_to_display_byte_upper(0), Some(b'0'));
assert_eq!(digit_to_display_byte_upper(9), Some(b'9'));
assert_eq!(digit_to_display_byte_upper(10), Some(b'A'));
assert_eq!(digit_to_display_byte_upper(35), Some(b'Z'));
assert_eq!(digit_to_display_byte_upper(100), None);