Конструктор ссылки?

class StateManager{
public:
    typedef long state_type;
    typedef void (*executor)(int);
 
    StateManager::StateManager(state_type mainState, executor newExec);
private:
    executor exec;
    struct state_unit{
        state_type func;
        state_unit* parent;
        state_unit(state_type newState, state_unit* newParent = NULL);
    };
    state_unit* cur_state;
 
    void Push(state_type newState, bool execute = true);
}

StateManager::state_unit::state_unit(StateManager::state_type newFunc, StateManager::state_unit* newParent)
: func(newFunc), parent(newParent)
{           }
 
StateManager::StateManager(state_type mainFunc, executor newExec)
: exec(newExec)
{
    cur_state->func = mainFunc;
}
 
void StateManager::Push(state_type newState, bool execute){
    state_unit* new_state = new state_unit(newState);
    new_state->parent = cur_state;
    cur_state = new_state;
    if ( execute == true )
    {
        exec(cur_state->func);
    }
}

: func(newFunc), parent(newParent)

    state_unit* new_state = new state_unit(newState);

StateManager::StateManager(state_type mainFunc, executor newExec)
: exec(newExec)
{
    cur_state = new state_unit(mainFunc);
}
 
StateManager::state_unit::state_unit(StateManager::state_type newFunc, StateManager::state_unit* newParent)
: func(newFunc),
parent(newParent)
{           }
 
 
 
void StateManager::Push(state_type newState, bool execute){
    state_unit* new_state = new state_unit(newState);
    new_state->parent = cur_state;
    cur_state = new_state;
    if ( execute == true )
    {
        exec(cur_state->func);
    }
}

State = new StateManager(0, &Sc.DO);

class GAME
{
private:
    SCENE* Sc;
public:
    GAME::GAME(SCENE* linkSc);
    GAME::~GAME();
    StateManager* State;
   /* etc */
}
 
GAME::GAME(SCENE* newSc){
    Sc = newSc;
    Duel.Sc = newSc;
    State = new StateManager(0, &Sc->DO);
}

typedef void (SCENE::*executor)(int); // описываем указатель на функцию - метод класса SCENE