How do const references work in C++ templates?

Can you explain how const references work in C++ templates?

Sure! In C++ templates, const references allow you to pass arguments without copying them, ensuring efficiency.

What are the benefits of using const references in templates?

Using const references avoids unnecessary copies, which can improve performance, especially with large objects.

Can you give me an example of using const references in a template function?

Absolutely! Here's a simple example:

template <typename T>
void printValue(const T& value) {
    std::cout << value << std::endl;
}

This function takes a const reference to any type T.

Are there any limitations to using const references in templates?

Yes, const references cannot bind to temporary objects if they are not const. This can lead to issues if not handled properly.