Using a static keyword in C ++

Question

I have a class displaying a static function in myclass.hpp

class MyClass { public: static std::string dosome(); }; 

Well, in myclass.cpp, what should I write: this:

 std::string MyClass::dosome() { ... } 

or that:

 static std::string MyClass::dosome() { ... } 

I think I should not repeat the static keyword ... is this correct?

Answer 1

The C ++ compiler does not allow this:

 static std::string MyClass::dosome() { ... } 

since static in a function definition means something completely different - static linkage (which means that a function can only be called from one translation unit).

Having static in a member function declaration is sufficient.

Answer 2

Do not repeat the static . An error will occur for this.

Answer 3

Yes The static should not be used when defining a function body outside the class definition.