Zig 0.17.0-dev (Split by item)

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prepend

Insert a new node at the beginning of the list.

Arguments: new_node: Pointer to the new node to insert.

DoublyLinkedList.prepend

pub fn prepend(list: *DoublyLinkedList, new_node: *Node) void

File

lib/std/DoublyLinkedList.zig:94

Code

pub fn prepend(list: *DoublyLinkedList, new_node: *Node) void {
    if (list.first) |first| {
        // Insert before first.
        list.insertBefore(first, new_node);
    } else {
        // Empty list.
        list.first = new_node;
        list.last = new_node;
        new_node.prev = null;
        new_node.next = null;
    }
}