macro_rules! hash_set {
    () => { ... };
    ($($elem:expr),*) => { ... };
}Expand description
Creates a new HashSet instance.
This macro can be used in two forms:
- Without arguments, it creates an empty 
HashSet. - With elements, it creates a 
HashSetand inserts the provided elements into it. 
ยงExamples
Creating an empty HashSet:
use std_macro_extensions::*;
let my_set: HashSet<i32> = hash_set!();Creating a HashSet with elements:
use std_macro_extensions::*;
let my_set = hash_set!(1, 2, 3);