What is tail recursion in C++?

What is tail recursion in C++?

Tail recursion is a specific case of recursion where the recursive call is the last operation in the function.

Can you give me an example of a tail recursive function?

Sure! Here's a simple example of a tail recursive function that calculates the factorial of a number:

int factorial(int n, int accumulator = 1) {
    if (n == 0) return accumulator;
    return factorial(n - 1, n * accumulator);
}

How does tail recursion improve performance?

Tail recursion can improve performance by allowing the compiler to optimize the recursive calls, reducing the risk of stack overflow.

Are there any limitations to using tail recursion?

Yes, not all problems can be solved with tail recursion, and some compilers may not optimize it effectively.