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24/*! @brief classe Source_Generique_base Cette classe est la base de la hierarchie des sources portant
25 *
26 * un OWN_PTR(Champ_Generique_base) qui permet d'evaluer une expression dependante
27 * de champs du probleme.
28 *
29 * @sa Source_base, Classe abstraite., Methodes abstraites:, DoubleTab& ajouter(DoubleTab& ) const, void associer_domaines(const Domaine_dis_base& ,const Domaine_Cl_dis_base& ) [protected], void associer_pb(const Probleme_base& ) [protected], Nom localisation_source(), Syntaxe :, Sources { Source_Generique "Champ_Generique { ...} " }, avec "Champ_Generique" un champ generique a specifier., Rq : la discretisation du champ renvoye par le champ generique, doit correspondre a celle ou est evaluee le terme source.