A New Exception From Inside a Catch

1#include <iostream>
2#include <stdexcept>
3 
4int main() {
5    try {
6        try {
7            throw std::runtime_error("disk read failed");
8        } catch (const std::runtime_error& e) {
9            std::cout << "low level: " << e.what() << "\n";
10            throw std::logic_error("could not load settings");
11        }
12        std::cout << "settings loaded\n";
13    } catch (const std::exception& e) {
14        std::cout << "high level: " << e.what() << "\n";
15    }
16    std::cout << "continuing with defaults\n";
17    return 0;
18}