Bonjour,

Je cherche a cr�er une classe singleton.
J'ai suivi le tuto mais je rencontre une erreur:

Voici le .h
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class Ressources_Manager {
public:
	static Ressources_Manager& Instance();
 
private:
	Ressources_Manager& operator= (const Ressources_Manager&){}
	Ressources_Manager (const Ressources_Manager&){}
 
	static Ressources_Manager&  m_instance;
	Ressources_Manager();
	virtual ~Ressources_Manager();
 
	sf::Texture H_Sp_Prairie;
	sf::Image   Img_H_Prairie;
 
	void Load_Textures();
	void Load_Images();
};
et le .cpp
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Ressources_Manager Ressources_Manager::m_instance=Ressources_Manager();
 
		Ressources_Manager::Ressources_Manager() {
 
			Load_Images();
			Load_Textures();
		}
 
		Ressources_Manager::~Ressources_Manager() {
 
		}
 
		Ressources_Manager& Ressources_Manager::Instance()
		{
		    return m_instance;
		}
 
		void Ressources_Manager::Load_Images()
		{
			Img_H_Prairie.loadFromFile("Image/HexaTestSize.bmp");
			Img_H_Prairie.createMaskFromColor(sf::Color(255,255,255));
		}
 
		void Ressources_Manager::Load_Textures()
		{
			H_Sp_Prairie.loadFromImage(Img_H_Prairie);
		}
et l'erreur affich�e est:

In file included from ..\RessourcesManager.cpp:8:0:
..\RessourcesManager.h: In member function 'itpro::res::Ressources_Manager& itpro::res::Ressources_Manager::operator=(const itpro::res::Ressources_Manager&)':
..\RessourcesManager.h:23:60: warning: no return statement in function returning non-void [-Wreturn-type]
..\RessourcesManager.cpp: At global scope:
..\RessourcesManager.cpp:13:41: error: conflicting declaration 'itpro::res::Ressources_Manager itpro::res::Ressources_Manager::m_instance'
In file included from ..\RessourcesManager.cpp:8:0:
..\RessourcesManager.h:26:30: error: 'itpro::res::Ressources_Manager::m_instance' has a previous declaration as 'itpro::res::Ressources_Manager& itpro::res::Ressources_Manager::m_instance'
..\RessourcesManager.cpp:13:41: error: declaration of 'itpro::res::Ressources_Manager& itpro::res::Ressources_Manager::m_instance' outside of class is not definition [-fpermissive]
..\RessourcesManager.cpp:13:71: error: invalid initialization of non-const reference of type 'itpro::res::Ressources_Manager&' from an rvalue of type 'itpro::res::Ressources_Manager'


Une id�e?

Merci