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C++ Quiz #157

The Variable the Failed Call Never Set

hardExceptions

x starts at -1. The second call to risky throws during the assignment. What is printed?

📄 Code

1#include <iostream>
2#include <stdexcept>
3 
4int risky(int n) {
5    if (n < 0) {
6        throw std::invalid_argument("negative");
7    }
8    return n * 2;
9}
10 
11int main() {
12    int x = -1;
13    try {
14        x = risky(5);
15        std::cout << "x is " << x << "\n";
16        x = risky(-5);
17        std::cout << "x is " << x << "\n";
18    } catch (const std::exception&) {
19        std::cout << "after the throw x is " << x << "\n";
20    }
21    return 0;
22}