Basic SinglyLinkedList using structs

singly_linked_list.zig

const std = @import("std");
const stdout = std.io.getStdOut().writer();

const Node = struct {
    value: i8,
    next: ?*Node = null,

    pub fn addAfter(self: *Node, node: *Node) void {
        node.next = self;
    }
};

const LinkedList = struct {
    first: ?*Node,
    pub fn prepend(self: *LinkedList, node: *Node) void {
        node.next = self.first;
        self.first = node;
    }
};

pub fn main() !void {
    var l1 = Node{ .value = 23 };
    try stdout.print("{}\n", .{l1});

    var l2 = Node{ .value = 18 };
    l1.addAfter(&l2);

    try stdout.print("{}\n", .{l2});

    var l3 = Node{ .value = -2 };
    l2.addAfter(&l3);

    var list = LinkedList{ .first = &l3 };
    try stdout.print("{}\n", .{list});

    var l4 = Node{ .value = 10 };
    list.prepend(&l4);
    try stdout.print("{}\n", .{list});
}

Output looks like this if you don't want to run to see the output.

singly_linked_list.Node{ .value = 23, .next = null }
singly_linked_list.Node{ .value = 18, .next = linked.Node{ .value = 23, .next = null } }
singly_linked_list.LinkedList{ .first = linked.Node{ .value = -2, .next = linked.Node{ .value = 18, .next = linked.Node{ ... } } } }
singly_linked_list.LinkedList{ .first = linked.Node{ .value = 10, .next = linked.Node{ .value = -2, .next = linked.Node{ ... } } } }