Three Tries and Then Give Up

1#include <iostream>
2#include <stdexcept>
3 
4int attempts = 0;
5 
6int connect() {
7    attempts++;
8    std::cout << "attempt " << attempts << "\n";
9    if (attempts < 4) {
10        throw std::runtime_error("timeout");
11    }
12    return attempts * 10;
13}
14 
15int main() {
16    bool connected = false;
17    for (int tries = 1; tries <= 3 && !connected; tries++) {
18        try {
19            int handle = connect();
20            std::cout << "connected with handle " << handle << "\n";
21            connected = true;
22        } catch (const std::runtime_error& e) {
23            std::cout << "try " << tries << " failed: " << e.what() << "\n";
24        }
25    }
26    if (!connected) {
27        std::cout << "giving up after " << attempts << " attempts\n";
28    }
29    return 0;
30}