Macro code_spells::capacious_extremis

macro_rules! capacious_extremis {
    (&mut $vec:ident, $capacity:expr) => { ... };
    ($vec:ident, $capacity:expr) => { ... };
}

Alias for Vec::reserve.

Example

let mut police_box = Vec::<i32>::new();
capacious_extremis!(&mut police_box, 5);
assert!(police_box.capacity() >= 5);
let r = &mut police_box;
capacious_extremis!(r, 10);
assert!(police_box.capacity() >= 10);