When should I use templates in C++?

When should I use templates in C++?

Templates in C++ are useful when you want to write generic and reusable code. They allow you to create functions or classes that can operate with any data type.

Can you give me an example of a template in C++?

Sure! Here's a simple example of a function template that swaps two values:

template <typename T>
void swap(T &a, T &b) {
    T temp = a;
    a = b;
    b = temp;
}

What are the advantages of using templates?

The main advantages include code reusability, type safety, and the ability to work with any data type without code duplication.

Are there any downsides to using templates?

Yes, some downsides include increased compilation times and potentially larger binary sizes due to code bloat.