Quick Answer

Manage errors with try-catch blocks.

Understanding the Issue

C++ exceptions provide a way to handle runtime errors without cluttering normal code flow with error checks.

The Problem

This code demonstrates the issue:

Cpp Error 
// Need to handle potential errors safely

The Solution

Here's the corrected code:

Cpp Fixed 
#include <iostream>
#include <stdexcept>

double divide(double a, double b) {
    if (b == 0) {
        throw std::runtime_error("Division by zero");
    }
    return a / b;
}

int main() {
    try {
        double result = divide(10, 0);
        std::cout << "Result: " << result << std::endl;
    } 
    catch (const std::runtime_error& e) {
        std::cerr << "Error: " << e.what() << std::endl;
    }
    catch (...) {
        std::cerr << "Unknown error occurred" << std::endl;
    }
    
    return 0;
}

Key Takeaways

Use exceptions for error handling in C++ rather than error codes.