Crate bint 

bint-rs

Bounded Integer in Rust

Usage

Original immutable Bint:

use bint::Bint;

let b: bint::Bint = bint::Bint {value: 5, boundary: 6 };
let c: Bint = b.up();
let d: Bint = c.up_x(2);

assert_eq!(5, b.value);
assert_eq!(0, c.value);
assert_eq!(2, d.value);

New and improved BintCell:

use bint::BintCell;

let b = BintCell::new(6);
assert_eq!(5, b.down());

b.up();
b.up();
b.up_x(2);
assert_eq!(3, b.value());

New DrainableBintCell that expires after a certain number of usages:

use bint::DrainableBintCell;

let b = DrainableBintCell::new(4, 4);

assert_eq!(1, b.up().unwrap());
assert_eq!(2, b.up().unwrap());
assert_eq!(3, b.up().unwrap());
assert_eq!(0, b.up().unwrap());
assert!(b.up().is_none());

Other examples

• Bounded Integer in Rust
• C++ bounded::integer library

Structs

Bint

Bint: A bounded integer.

BintCell

BintCell: A bounded integer captured in a Cell.

DrainableBintCell

Version of a BintCell that can only be called a limited number of times, after which it returns none.