Some questions about functions with a class type

So I am using C++ and experimenting with classes. I am trying to create a function with a class type. Here is the code:

struct action{
void setup(std::string){
/*...*/
}
};
action move(){
setup("*");//<-error:[use of undeclared identifier 'setup']
}

Can the instance function of the class access its member functions and objects? Also, what should it return? Do i have to create a seperate action instance to return? Can it be related to the action move?Thanks!

For starters the function setup is a non-static member function of the class action. It can be used applied to an object of the class. And the function move returns nothing though it has the return type action.

The function move can look like

action move()
{
    action a;

    a.setup("*");

    return a;
}