3 releases (stable)
1.0.1 | Aug 28, 2020 |
---|---|
1.0.0 | Sep 24, 2019 |
0.1.0 | Aug 20, 2015 |
#753 in Algorithms
11,367 downloads per month
Used in 4 crates
9KB
131 lines
luhn-rs
Validates strings and computes check digits using the Luhn algorithm.
Usage
Add luhn
under [dependencies]
in your Cargo.toml
:
[dependencies]
luhn = "1.0.1"
Use the validator!
luhn::valid("4111111111111111"); // true
Append check digits to your strings and make them Luhn-valid!
// A string which doesn't validate
let mut s = "11111111".to_string();
assert!(!valid(&s));
// Let's fix that
s.push(luhn::checksum(s.as_bytes()) as char);
assert_eq!(s, "111111118");
assert!(valid(&s));
lib.rs
:
Validates strings and computes check digits using the Luhn algorithm.
It's not a great checksum, but it's used in a bunch of places (credit card numbers, ISIN codes, etc.). More information is available on wikipedia.
Dependencies
~11KB