What are some C++ template examples?

Can you give me some examples of C++ templates?

Sure! C++ templates allow you to write generic and reusable code. For example, here's a simple function template for swapping two values:

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

You can use this function with any data type!

That's great! Can you show me a template class example?

Absolutely! Here's an example of a template class for a simple stack:

template <typename T>
class Stack {
private:
    std::vector<T> elements;
public:
    void push(const T &element) { elements.push_back(element); }
    void pop() { elements.pop_back(); }
    T top() const { return elements.back(); }
    bool isEmpty() const { return elements.empty(); }
};

This class can store any data type in a stack structure.

Can templates be used with non-type parameters?

Yes, they can! You can define templates with non-type parameters as well. For example:

template <typename T, int size>
class Array {
private:
    T arr[size];
public:
    int getSize() const { return size; }
};

This template creates an array of a specified size for any data type.