set

maplit2

Macro set 

Source 
macro_rules! set {
    (@single $($x:tt)*) => { ... };
    (@count $($rest:expr),*) => { ... };
    ($($key:expr,)+) => { ... };
    ($($key:expr),*) => { ... };
}
Expand description

Alias of “hashset!”. Create a HashSet from a list of elements.

§Example

#[macro_use] extern crate maplit2;

let set = set!{"a", "b"};
assert!(set.contains("a"));
assert!(set.contains("b"));
assert!(!set.contains("c"));