Changeset 2144:cd8897f67c26 in lemon-0.x for lemon/lp_base.h

Timestamp:

07/17/06 11:00:21 (18 years ago)

Author:

athos

Branch:

default

Phase:

public

Convert:

svn:c9d7d8f5-90d6-0310-b91f-818b3a526b0e/lemon/trunk@2858

Message:

MIP support added (by Jano, the Great).

File:

• lemon/lp_base.h (modified) (2 diffs)

lemon/lp_base.h

@@ -176 +176 @@
       int id;
       friend class LpSolverBase;
+      friend class MipSolverBase;
     public:
       typedef Value ExprValue;
@@ -1157 +1158 @@
   };  
 
-  ///\e
+
+  ///Common base class for ILP solvers
+  ///\todo Much more docs
+  ///\ingroup gen_opt_group
+  class MipSolverBase : virtual public LpSolverBase{
+  public:
+
+    ///Set the type of the given Col to integer or remove that property.
+    ///
+    ///Set the type of the given Col to integer or remove that property.
+    void integer(Col c, bool enable) {
+      _integer(cols.floatingId(c.id),enable);
+    }
+
+    ///Gives back the type of the column.
+    ///
+    ///Gives back the type of the column.
+    ///\return true if the column has integer type and false if not.
+    bool integer(Col c){
+      return _integer(cols.floatingId(c.id));
+    }
+
+  protected:
+
+    virtual bool _integer(int col) = 0;
+    virtual void _integer(int col, bool enable) = 0;
+  };
   
   ///\relates LpSolverBase::Expr