-/*
- * Local prototypes to implement the Lagrangian optimization with optimal step, also called dichotomy.
- */
-// computes the value of the dichotomy using a initial values, init, with a specific variable or constraint
-static double dichotomy(double init, double diff(double, const Constraint&), const Constraint& cnst, double min_error);
-// computes the value of the differential of constraint cnst applied to lambda
-static double partial_diff_lambda(double lambda, const Constraint& cnst);
-
-template <class CnstList, class VarList>
-static int __check_feasible(const CnstList& cnst_list, const VarList& var_list, int warn)