Common Interview Questions for C++ Roles

What are some common interview questions for C++ roles?

Some common questions include: 1. What is the difference between C and C++? 2. Explain RAII. 3. What are smart pointers?

Can you explain the concept of RAII?

RAII stands for Resource Acquisition Is Initialization. It ensures that resources are properly released when an object goes out of scope.

What are smart pointers and how do they differ from regular pointers?

Smart pointers are objects that manage the lifetime of dynamically allocated memory. They help prevent memory leaks and dangling pointers.

Can you give me an example of using a smart pointer?

Sure! Here's a simple example using std::unique_ptr:

#include <memory>

void example() {
    std::unique_ptr<int> ptr = std::make_unique<int>(10);
    // ptr will automatically delete the allocated memory when it goes out of scope.
}