What is the purpose of namespaces in C++?

What is the purpose of namespaces in C++?

Namespaces in C++ are used to organize code and prevent name collisions. They allow you to group related functions, classes, and variables.

Can you give me an example of how to use a namespace?

Sure! You can define a namespace like this:

namespace MyNamespace {
    void myFunction() {
        // function implementation
    }
}

You can then call MyNamespace::myFunction() to use it.

What happens if I don't use namespaces?

Without namespaces, if two functions or variables have the same name, it will lead to naming conflicts and compilation errors.

Are there any best practices for using namespaces?

Yes, it's best to keep namespaces small and focused, avoid using using namespace in header files, and use descriptive names.