What are C++ variadic templates and how do they work?

What are C++ variadic templates and how do they work?

C++ variadic templates allow functions and classes to accept a variable number of template parameters. They enable more flexible and reusable code.

Can you give me an example of how to use variadic templates?

Sure! Here's a simple example:

template<typename... Args>
void print(Args... args) {
    (std::cout << ... << args) << '\n';
}

This function can take any number of arguments and print them.

What are the benefits of using variadic templates?

They provide type safety, reduce code duplication, and allow for more generic programming, making your code cleaner and more maintainable.

Are there any limitations to using variadic templates?

Yes, they can lead to complex code and longer compilation times. Also, debugging variadic templates can be challenging due to their complexity.