one-based

This crate provides simple unsigned wrappers to handle 1-based index.

let v1 = OneBasedU32::from_one_based(1).uwrap();
assert_eq!(v1.as_zero_based(), 0);

let v2 = OneBasedU32::from_zero_based(0).uwrap();
assert_eq!(v2.as_one_based().get(), 1);

assert_eq!(v1, v2);