class CStackAbstr
{
    enum CodErr_t {CstPasDErreur = 0, CstPileVide    = 1,
                   CstPilePleine = 2, CstPileNonVide = 3,
                   CstPbMemoire  = 4,

                   // Fin question 1

                   CstNoTrunc    = 5, CstNoSwap      = 6 };

}; // CStackAbstr