Syntax sugar to make your Rust life more sweet.
use sugar::*;
use sugar::*;
// vec of boxed value
let vb1 = vec_box![1, 2, 3];
// vec/list comprehension
let vb2 = v![Box::new(i), for i in 1..4];
// hashmap construction
let hm1 = hashmap!{
1 => 2,
2 => 3,
3 => 4,
};
// hashmap comprehension
let hm2 = m!{i => i + 1, for i in 1..4};
let _ = max!(1, 2, 3);
let _ = min!(1, 2, 3);
if cmp!(1, < num, < 3) {
println!("num is between 1 and 3");
}
More detail in sugar's documentation.