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/* ---------------------------------------------------------------------
/// \return The number of remaining references on the object after the call (if meaningfull...): used by bbtk to warn a user if another smart pointing system is still holding the object...
//JCP 21-09-20 09 delete this throws and exception change due to compiler version changing and boost version
/// \return The number of remaining references on the object after the call (if meaningfull...): used by bbtk to warn a user if another smart pointing system is still holding the object...
//JCP 21-09-20 09 delete this throws and exception change due to compiler version changing and boost version