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Message: [QUOTE="Matthias Kaeppler, post: 2521311"] If it must not be created twice, and if it's shared by many classes, then this screams for making TUsers a singleton. class TUsers { public: static TUsers& instance(); ... private: TUsers(); // make ctor private }; inline TUsers& TUsers::instance() { static TUsers tu; return tu; } Now you can acquire a handle to the one and only TUsers object everywhere you include the TUsers header: .... TUsers& tu = TUsers::instance(); tu.foobar(); .... [/QUOTE]