How can I use templates in C++ classes?

How can I use templates in C++ classes?

You can define a template class in C++ by using the template keyword followed by template parameters. For example:

template <typename T>
class MyClass {
public:
    T value;
    MyClass(T val) : value(val) {}
};

This allows you to create a class that can handle any data type.

Can you give me an example of how to instantiate this template class?

Sure! You can instantiate the MyClass template like this:

MyClass<int> intObj(5);
MyClass<double> doubleObj(3.14);

Here, intObj is an instance of MyClass with int type, and doubleObj is an instance with double type.

What are the benefits of using templates in classes?

Using templates allows for code reusability and type safety. You can write a single class definition that works with any data type, reducing code duplication and improving maintainability.

Are there any limitations to using templates?

Yes, some limitations include increased compilation time and potential code bloat, as each instantiation generates separate code. Additionally, debugging template code can be more complex.