Organize includes

Question

• Is there some preferred way to organize ones include directives?
• Is it better to include the files you need in the .cpp file instead of the

Answer 1

It might be important to notice that the order of classes in Translation Unit need to be correct or some c++ features are just disabled and results in a compile-time error.

Edit: Adding examples:

class A { };
class B { A a; }; // order of classes need to be correct