What is dependency injection in C++?

What is dependency injection in C++?

Dependency injection is a design pattern used to implement IoC (Inversion of Control), allowing a class to receive its dependencies from an external source rather than creating them itself.

Can you give me an example of how to implement it?

Sure! Here's a simple example: You can create an interface for a service, then implement that interface in a class. The class that uses the service will receive it through its constructor.

What are the benefits of using dependency injection?

The benefits include improved code maintainability, easier testing, and better separation of concerns, which leads to more modular code.

Are there any downsides to using dependency injection?

Yes, it can introduce complexity and may lead to over-engineering if not used judiciously. It's important to balance its use.