Mingw 'std :: function' not declared?

Question

First of all, I use code blocks for windows with the latest version of mingw. I use the sfml library to start the game, but unfortunately I ran into this problem. I need to use std :: function for my state manager, but it continues to show the same error: "std :: function" is not declared. I did #include<functional>and used the linker option -std = C ++ 0x, but still no luck. The only thing that does not compile is one header:

#ifndef STATEMANAGER_HPP_INCLUDED
#define STATEMANAGER_HPP_INCLUDED

#include <vector>
#include "State.hpp"
#include <functional>
#include <SFML/Graphics.hpp>

class StateManager {
public:
    StateManager();
    ~StateManager();

    void registerState(int id, std::function< State*() > createFunc);

    void setState(int id);

    void update();

    void draw(sf::RenderTarget &target);
private:
    std::vector< std::function< State*() > > mStates;
    State *mCurrentState;
};

#endif // STATEMANAGER_HPP_INCLUDED

I have no idea what the problem is. Does anyone know what's wrong here?

Answer 1

. Piotr S. std:: tr1:: function, , tr1/functional, . !