Macro leetcode_trees_rs::list_node

source · 
macro_rules! list_node {
    ($val:expr) => { ... };
    ($val:expr, $($rest:tt)*) => { ... };
}
Expand description

§Description

A macro to reduce the boilerplate in generating a full ListNode.

§Example

This code:

use crate::utils::list_node;
let node = list_node!(1, 2, 3, 4);

Is the equivalent of the following:

use crate::utils::ListNode;
let node = ListNode {
    val: 1,
    next: Some(Box(ListNode {
        val: 2,
        next: Some(Box(ListNode {
            val: 3,
            next: ListNode::new(4),
        }))
    }))
}