fixed_vec

Bounds check indices only once, instead of over and over if the indices will be re-used:

```rust use fixed_vec::{name, FixedVec};

let v = vec![0u32; 10]; let v = name!(v); let mut v = FixedVec::fix(v);

// Perform the two index checks here: let indexa = v.checkindex(...).unwrap(); let indexb = v.checkindex(...).unwrap();

for _ in 0..100 { // These do not perform bounds checks! // At compile time, v and indexa must match *v.getmut(indexa) += 5; *v.getmut(index_b) += 10; }

let v = v.unfix();

// continue using v... ```

See the concept post for more information.