Is there a toString method for classes in C++?

Question

C++ / C#

In Java and C#, each class has a toString method that is called automatically when text is displayed and which can be overridden in each class in its own way.
Is there something similar in C++, or do I need to implement a separate method?

Answer 1

No. Because C++ has a "don't pay for what you don't use" rule and there is no reflection at the language level.
If you want to stream a class, then implement: where Foo is your class. Well, if you need to cast a class to a string representation, then yes, you will have to implement the method by hand, or, which is more architecturally correct, make a separate class and / or function for conversion. ostream& operator<< (ostream& os, const Foo &o)

Answer 2

No, do it yourself.

Answer 3

There are crafts with handwritten reflection. Anton Polukhin has a report, if I am not mistaken, on this topic.
But is it really necessary?