Shopping Cart - Zig Typing CST Test

Shopping Cart — Zig Code

Adds and removes items in a shopping cart with total cost.

const std = @import("std");
var items: [5]?[]const u8 = [_]?[]const u8{null} ** 5;
var prices: [5]f64 = [_]f64{0} ** 5;
var count: usize = 0;
var total: f64 = 0;

fn addItem(item: []const u8, price: f64) void {
	if (count < items.len) {
		items[count] = item;
		prices[count] = price;
		total += price;
		count += 1;
	}
}

fn removeItem(index: usize) void {
	if (index < count) {
		total -= prices[index];
		for (index..count-1) |i| {
		items[i] = items[i+1];
		prices[i] = prices[i+1];
		}
		count -= 1;
	}
}

fn printCart() void {
	for (0..count) |i| {
		std.debug.print("{s}: ${f}\n", .{items[i], prices[i]});
	}
	std.debug.print("Total: ${f}\n----------------\n", .{total});
}

pub fn main() void {
	addItem("Apple", 2.0);
	addItem("Banana", 3.0);
	printCart();
	removeItem(0);
	printCart();
}

Zig Language Guide

Zig is a general-purpose, statically typed, compiled programming language designed for robustness, optimal performance, and simplicity. It emphasizes manual memory management, safety features, cross-compilation, and direct interoperability with C, making it ideal for system programming, embedded development, and high-performance applications.

More Zig Typing Exercises

Practice Other Languages