What are the differences between templates and generics in programming?

What are the differences between templates and generics in programming?

Templates and generics are both ways to create reusable code, but they differ in their implementation and usage. Templates are primarily used in C++ and allow for type parameters to be defined at compile time, while generics are used in languages like Java and C# and allow for type parameters to be defined at runtime.

Can you give me an example of each?

Sure! In C++, a template function might look like this: template <typename T> T add(T a, T b) { return a + b; }. In Java, a generic method could be: public <T> T add(T a, T b) { return a + b; }.

Which one is better to use?

It depends on the context. Templates offer more flexibility and performance in C++, while generics provide type safety and ease of use in languages like Java. Choose based on your project's requirements.

Are there any limitations to using templates?

Yes, templates can lead to code bloat since each instantiation creates a new version of the function or class. They can also result in longer compile times.