memselect

No-std compatible memoizing selectors for Rust.

Memselect allows you to create efficient selectors for memoizing expensive computations. The selectors can be composed to create higher-level selectors that benefit from memoization all the way down. Monomorphization ensures efficient runtime behavior.

Example

```rust use memselect::{new1, new2, Selector2};

let mut computations = 0;

{ let base = new1(|num: u32| num, |num| num * 2);

let mut selector = new2(
    base, // You can nest selectors
    |num: u32| num * 3,
    |num1, num2| { // This function gets the output of `base` and the fn above
        computations += 1;
        (*num1, *num2)
    },
);

assert_eq!(selector.select(2, 3), (4, 9));
assert_eq!(selector.select(2, 3), (4, 9));

}

// Value was computed only once assert_eq!(computations, 1); ```