How do I use variadic templates in C++?

How do I use variadic templates in C++?

Variadic templates allow you to create functions and classes that can take a variable number of arguments. Would you like a simple example?

Yes, please provide an example.

Here's a basic example:

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

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

What does the '...' mean in that context?

The '...' is the pack expansion operator. It allows you to unpack the arguments in the parameter pack, enabling operations on each argument.

Can I use variadic templates with classes too?

Absolutely! You can create classes that accept a variable number of template parameters, which is useful for creating flexible data structures.