summaryrefslogtreecommitdiff
path: root/build/Bonmin/include/coin/CglStored.hpp
diff options
context:
space:
mode:
authorHarpreet2016-08-04 15:25:44 +0530
committerHarpreet2016-08-04 15:25:44 +0530
commit9fd2976931c088dc523974afb901e96bad20f73c (patch)
tree22502de6e6988d5cd595290d11266f8432ad825b /build/Bonmin/include/coin/CglStored.hpp
downloadFOSSEE-Optim-toolbox-development-9fd2976931c088dc523974afb901e96bad20f73c.tar.gz
FOSSEE-Optim-toolbox-development-9fd2976931c088dc523974afb901e96bad20f73c.tar.bz2
FOSSEE-Optim-toolbox-development-9fd2976931c088dc523974afb901e96bad20f73c.zip
initial add
Diffstat (limited to 'build/Bonmin/include/coin/CglStored.hpp')
-rw-r--r--build/Bonmin/include/coin/CglStored.hpp125
1 files changed, 125 insertions, 0 deletions
diff --git a/build/Bonmin/include/coin/CglStored.hpp b/build/Bonmin/include/coin/CglStored.hpp
new file mode 100644
index 0000000..07039d9
--- /dev/null
+++ b/build/Bonmin/include/coin/CglStored.hpp
@@ -0,0 +1,125 @@
+// $Id: CglStored.hpp 1119 2013-04-06 20:24:18Z stefan $
+// Copyright (C) 2005, International Business Machines
+// Corporation and others. All Rights Reserved.
+// This code is licensed under the terms of the Eclipse Public License (EPL).
+
+#ifndef CglStored_H
+#define CglStored_H
+
+#include <string>
+
+#include "CglCutGenerator.hpp"
+
+class CoinWarmStartBasis;
+class CglTreeProbingInfo;
+/** Stored Cut Generator Class */
+class CglStored : public CglCutGenerator {
+
+public:
+
+
+ /**@name Generate Cuts */
+ //@{
+ /** Generate Mixed Integer Stored cuts for the model of the
+ solver interface, si.
+
+ Insert the generated cuts into OsiCut, cs.
+
+ This generator just looks at previously stored cuts
+ and inserts any that are violated by enough
+ */
+ virtual void generateCuts( const OsiSolverInterface & si, OsiCuts & cs,
+ const CglTreeInfo info = CglTreeInfo());
+ //@}
+
+ /**@name Change criterion on whether to include cut.
+ Violations of more than this will be added to current cut list
+ (default 1.0e-5) */
+ //@{
+ /// Set
+ inline void setRequiredViolation(double value)
+ { requiredViolation_=value;}
+ /// Get
+ inline double getRequiredViolation() const
+ { return requiredViolation_;}
+ /// Takes over ownership of probing info
+ inline void setProbingInfo(CglTreeProbingInfo * info)
+ { probingInfo_ = info;}
+ //@}
+
+ /**@name Cut stuff */
+ //@{
+ /// Add cuts
+ void addCut(const OsiCuts & cs);
+ /// Add a row cut
+ void addCut(const OsiRowCut & cut);
+ /// Add a row cut from a packed vector
+ void addCut(double lb, double ub, const CoinPackedVector & vector);
+ /// Add a row cut from elements
+ void addCut(double lb, double ub, int size, const int * colIndices, const double * elements);
+ inline int sizeRowCuts() const
+ { return cuts_.sizeRowCuts();}
+ const OsiRowCut * rowCutPointer(int index) const
+ { return cuts_.rowCutPtr(index);}
+ /// Save stuff
+ void saveStuff(double bestObjective, const double * bestSolution,
+ const double * lower, const double * upper);
+ /// Best solution (or NULL)
+ inline const double * bestSolution() const
+ { return bestSolution_;}
+ /// Best objective
+ double bestObjective() const;
+ /// Tight lower bounds
+ const double * tightLower() const
+ { return bounds_;}
+ /// Tight upper bounds
+ const double * tightUpper() const
+ { return bounds_+numberColumns_;}
+ //@}
+
+ /**@name Constructors and destructors */
+ //@{
+ /// Default constructor
+ CglStored (int numberColumns=0);
+
+ /// Copy constructor
+ CglStored (const CglStored & rhs);
+
+ /// Constructor from file
+ CglStored (const char * fileName);
+
+ /// Clone
+ virtual CglCutGenerator * clone() const;
+
+ /// Assignment operator
+ CglStored &
+ operator=(const CglStored& rhs);
+
+ /// Destructor
+ virtual
+ ~CglStored ();
+ //@}
+
+protected:
+
+ // Protected member methods
+
+ // Protected member data
+
+ /**@name Protected member data */
+ //@{
+ /// Only add if more than this requiredViolation
+ double requiredViolation_;
+ /// Pointer to probing information
+ CglTreeProbingInfo * probingInfo_;
+ /// Cuts
+ OsiCuts cuts_;
+ /// Number of columns in model
+ int numberColumns_;
+ /// Best solution (objective at end)
+ double * bestSolution_;
+ /// Tight bounds
+ double * bounds_;
+ //@}
+};
+#endif