Function std::char::from_digit
pub fn from_digit(num: u32, radix: u32) -> Option<char>
Converts a digit in the given radix to a char. Use char::from_digit instead.
© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/char/fn.from_digit.html
