#import "modules/std.sx";

List :: struct ($T: Type) {
    items: [*]T = null;
    len: s64 = 0;
    cap: s64 = 0;
}

append :: (list: *List($T), item: T) {
    if list.len >= list.cap {
        new_cap := if list.cap == 0 then 4 else list.cap * 2;
        new_items : [*]T = xx malloc(new_cap * size_of(T));
        if list.len > 0 {
            memcpy(new_items, list.items, list.len * size_of(T));
            free(list.items);
        }
        list.items = new_items;
        list.cap = new_cap;
    }
    list.items[list.len] = item;
    list.len += 1;
}

main :: () {
    list := List(s32).{};
    append(list, 3);
    append(list, 1);

    list.append(3);
    list.append(4);
    list.append(1);
    list.append(5);

    print("{}\n", list);
}