Macro hash_set

macro_rules! hash_set {
    () => { ... };
    ($($elem:expr),*) => { ... };
}

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 HashSet and inserts the provided elements into it.

Examples

Creating an empty HashSet:

use std_macro_extensions::*;
let my_set = hash_set!();
assert!(my_set.is_empty());

Creating a HashSet with elements:

use std_macro_extensions::*;
let my_set = hash_set!(1, 2, 3);
assert!(my_set.contains(&1));
assert!(my_set.contains(&2));
assert!(my_set.contains(&3));