What are C++ function templates?

Can you explain what C++ function templates are?

C++ function templates allow you to create a function that can operate with any data type. They enable code reusability.

How do I define a function template in C++?

You define a function template using the 'template' keyword followed by template parameters. For example:

template <typename T>
T add(T a, T b) {
    return a + b;
}

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

Sure! Here's how you can use the 'add' function template:

int main() {
    int resultInt = add(5, 10);
    double resultDouble = add(5.5, 2.5);
}

What are the benefits of using function templates?

Function templates promote code reusability, reduce redundancy, and allow for type-safe operations across different data types.