How do I handle errors with unique pointers in C++?

How do I handle errors with unique pointers in C++?

In C++, unique pointers automatically manage memory, but you can handle errors by using try-catch blocks.

Can you give me an example of using try-catch with unique pointers?

Sure! Here's a simple example:

#include <iostream>
#include <memory>

void riskyFunction() {
    throw std::runtime_error("An error occurred!");
}

int main() {
    std::unique_ptr<int> ptr;
    try {
        ptr = std::make_unique<int>(42);
        riskyFunction();
    } catch (const std::exception& e) {
        std::cerr << e.what() << std::endl;
    }
    return 0;
}

What happens if I don't catch the exception?

If you don't catch the exception, it will propagate up the call stack, potentially causing your program to terminate.

Are there any best practices for using unique pointers?

Yes! Always initialize unique pointers, avoid using raw pointers, and prefer std::make_unique for allocation.