| // Adapted from https://github.com/Alexhuszagh/rust-lexical. | |
| //! Helpers to convert and add digits from characters. | |
| // Convert u8 to digit. | |
| #[inline] | |
| pub(crate) fn to_digit(c: u8) -> Option<u32> { | |
| (c as char).to_digit(10) | |
| } | |
| // Add digit to mantissa. | |
| #[inline] | |
| pub(crate) fn add_digit(value: u64, digit: u32) -> Option<u64> { | |
| value.checked_mul(10)?.checked_add(digit as u64) | |
| } |