Ctrl / ⌘ + drag to orbit · Ctrl / ⌘ + scroll to zoomDrag to orbit · Pinch to zoom

LESSON 2.7

When a Number Goes Too Far

If a calculation goes outside its type range, Zirk stops with ArithmeticOverflowError instead of returning a false result.

Goal Predict what happens when the program runs.

Write a Zirk program, then run it to see the world react.

Predict the program output -128 128 ArithmeticOverflowError

Your code

main.zirk

Zirk syntax highlighting active

Lesson scaffold is locked. Edit the learner region.

Zirk

import { stdout } from std.io;

fn main(): Void {
    mut charge: Int8 = 127;
    stdout.println("antes:", charge);
    charge = charge + 1;
    stdout.println("después:", charge);
}

import { stdout } from std.io;

fn main(): Void {
    mut charge: Int8 = 127;
    stdout.println("antes:", charge);
    charge = charge + 1;
    stdout.println("después:", charge);
}

⌘ / Ctrl + Enter

Output

Your program output will appear here.

Sound unavailable in this browser