Move lp_solve dependency completely into LinearSpec. Clean up and some more memory allocation checks.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39681 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/libs/linprog/Constraint.h

@@ -33,7 +33,7 @@ public:
 
 			SummandList*		LeftSide();
 			void				SetLeftSide(SummandList* summands);
-			void				UpdateLeftSide();
+			
 			void				SetLeftSide(double coeff1, Variable* var1);
 			void				SetLeftSide(double coeff1, Variable* var1,
 									double coeff2, Variable* var2);
@@ -73,14 +73,18 @@ public:
 protected:
 								Constraint(LinearSpec* ls,
 									SummandList* summands, OperatorType op,
-									double rightSide, double penaltyNeg,
-									double penaltyPos);
+									double rightSide,
+									double penaltyNeg = INFINITY,
+									double penaltyPos = INFINITY);
 
 private:
 			LinearSpec*			fLS;
 			SummandList*		fLeftSide;
 			OperatorType		fOp;
 			double				fRightSide;
+
+			double				fPenaltyNeg;
+			double				fPenaltyPos;
 			Summand*			fDNegObjSummand;
 			Summand*			fDPosObjSummand;
 			BString				fLabel;

headers/libs/linprog/LinearSpec.h

@@ -43,6 +43,10 @@ public:
 			bool				SetRange(Variable* variable, double min,
 									double max);
 
+			bool				AddConstraint(Constraint* constraint);
+			bool				RemoveConstraint(Constraint* constraint,
+									bool deleteConstraint = true);
+
 			Constraint*			AddConstraint(SummandList* summands,
 									OperatorType op, double rightSide);
 			Constraint*			AddConstraint(double coeff1, Variable* var1,
@@ -108,9 +112,21 @@ public:
 
 	const	ConstraintList&		Constraints() const;
 
+protected:
+	friend class Constraint;
+ 			bool				UpdateLeftSide(Constraint* constraint);
+			bool				UpdateRightSide(Constraint* constraint);
+			bool				UpdateOperator(Constraint* constraint);
 private:
-			ResultType			Presolve();
-			void				RemovePresolved();
+			/*! Check if all entries != NULL otherwise delete the list and its
+			entries. */
+			bool				_CheckSummandList(SummandList* list);
+			Constraint*			_AddConstraint(SummandList* leftSide,
+									OperatorType op, double rightSide,
+									double penaltyNeg, double penaltyPos);
+
+			ResultType			_Presolve();
+			void				_RemovePresolved();
 
 			lprec*				fLpPresolved;
 			OptimizationType	fOptimization;
@@ -122,9 +138,6 @@ private:
 			double 				fObjectiveValue;
 			double 				fSolvingTime;
 
-public:
-	friend class		Constraint;
-
 };
 
 }	// namespace LinearProgramming