Changeset 1460:7c58aabb9eea in lemon-0.x for lemon/lp_base.h

Timestamp:

06/09/05 17:03:58 (19 years ago)

Author:

athos

Branch:

default

Phase:

public

Convert:

svn:c9d7d8f5-90d6-0310-b91f-818b3a526b0e/lemon/trunk@1940

Message:

I could not check, because: aclocal-1.7: command not found

File:

• lemon/lp_base.h (modified) (4 diffs)

lemon/lp_base.h

@@ -119 +119 @@
     };
       
-    ///\e
+      ///\e
     enum SolutionStatus {
       ///Feasible solution has'n been found (but may exist).
@@ -138 +138 @@
       INFINITE = 4
     };
+
+      ///\e The type of the investigated LP problem
+      enum Problemtypes {
+          ///Primal-dual feasible
+          PRIMAL_DUAL_FEASIBLE = 0,
+          ///Primal feasible dual infeasible
+          PRIMAL_FEASIBLE_DUAL_INFEASIBLE = 1,
+          ///Primal infeasible dual feasible
+          PRIMAL_INFEASIBLE_DUAL_FEASIBLE = 2,
+          ///Primal-dual infeasible
+          PRIMAL_DUAL_INFEASIBLE = 3,
+          ///Could not determine so far
+          UNKNOWN = 4
+      };
       
     ///The floating point type used by the solver
@@ -564 +578 @@
     virtual Value _getPrimalValue() = 0;
     virtual SolutionStatus _getPrimalStatus() = 0;
+    virtual SolutionStatus _getDualStatus() = 0;
+    ///\todo This could be implemented here, too, using _getPrimalStatus() and
+    ///_getDualStatus()
+    virtual ProblemTypes _getProblemType() = 0;
+
     virtual void _setMax() = 0;
     virtual void _setMin() = 0;
@@ -931 +950 @@
     ///@{
 
-    ///\e 
+    /// The status of the primal problem (the original LP problem)
     SolutionStatus primalStatus() {
       return _getPrimalStatus();
+    }
+
+    /// The status of the dual (of the original LP) problem 
+    SolutionStatus dualStatus() {
+      return _getDualStatus();
+    }
+
+    ///The type of the original LP problem
+    Problemtypes problemType() {
+      return _getProblemType();
     }