`use of undeclared identifier 'updater'` error

[frosty loom]

Trying to call a function from outside of a struct that contains a public function doesn't seem to work. I'm sure there's a way, I just don't understand how.

src\main.zig:29:27: error: use of undeclared identifier 'updater'
    var update_instance = updater{};

    var update_instance = updater{};
    var serve_instance = server{};

    const server = struct {
        pub fn serve() !void {
            if (unserved > 0) {
                unserved -= 1;
                served += 1;
                std.debug.print("Serving guest. Served: {d}, Unserved: {d}\n", .{ served, unserved });

                if (std.rand.random().int(u32) < 5) {
                    new_guest = std.time.milli(std.rand.random().intRange(1000, 10000));
                }
            }
            .serve;
        }
    };

    const updater = struct {
        pub fn update() !void {
            if (new_guest <= 0) {
                new_guest = std.time.milli(std.rand.random().intRange(1000, 10000));
                std.debug.print("New guest arrived!\n", .{});
            }
            .update;
        }
    };

Maybe I'm doing it wrong, anyone got a solution and explanation? And preferably a docs link where I can read up a bit more about how it works in-depth? This is week 3 of trying to learn Zig (I allocate 1 1/2 hours a week to learning).

[viral bay]

Looks like you just have the .update in the wrong place

Should go outside the struct

That and you need the vars to be after the consts and there shouldnt be brackets

[dull juniper]

are updater and server supposed to be functions or structs?

[viral bay]

you're probably also going to have problems with the variables from outside used inside those functions

likely what you want to do here is pull those functions out into a struct and put any state they're using into that struct as well

const State = struct {
  unserved: usize,
  served: usize,
  new_guest: usize,
  pub fn serve(self: *State) ...
  pub fn update(self: *State) ...
};

var state = State {.unserved = 0, .served = 0, .new_guest = 0};
...
state.serve();
...
state.update();

[frosty loom]

yes thank you both

i resolved issues !