Macro mini_vec 

macro_rules! mini_vec {
    () => { ... };
    ($elem:expr; $n:expr) => { ... };
    ($($x:expr),+ $(,)?) => { ... };
}

mini_vec! is a macro similar in spirit to the stdlib’s vec!.

It supports the creation of MiniVec with:

• mini_vec!()
• mini_vec![val1, val2, val3, ...]
• mini_vec![val; num_elems]