Cgl
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Zero Half Cut Generator Class. More...
#include <CglZeroHalf.hpp>
Public Member Functions | |
Generate Cuts | |
virtual void | generateCuts (const OsiSolverInterface &si, OsiCuts &cs, const CglTreeInfo info=CglTreeInfo()) const |
Generate zero half cuts for the model accessed through the solver interface. | |
Sets and Gets | |
int | getFlags () const |
Get flags. | |
void | setFlags (int value) |
Set flags. | |
Constructors and destructors | |
CglZeroHalf () | |
Default constructor. | |
CglZeroHalf (const CglZeroHalf &) | |
Copy constructor. | |
virtual CglCutGenerator * | clone () const |
Clone. | |
CglZeroHalf & | operator= (const CglZeroHalf &rhs) |
Assignment operator. | |
virtual | ~CglZeroHalf () |
Destructor. | |
virtual std::string | generateCpp (FILE *fp) |
Create C++ lines to get to current state. | |
virtual void | refreshSolver (OsiSolverInterface *solver) |
This can be used to refresh any information. | |
Friends | |
void | CglZeroHalfUnitTest (const OsiSolverInterface *siP, const std::string mpdDir) |
A function that tests the methods in the CglZeroHalf class. |
Zero Half Cut Generator Class.
This class generates zero half cuts via the following method:
See -
G. Andreello, A. Caprara, M. Fischetti, “Embedding Cuts in a Branch and Cut Framework: a Computational Study with {0,1/2}-Cuts”, INFORMS Journal on Computing 19(2), 229-238, 2007.
Definition at line 26 of file CglZeroHalf.hpp.
Default constructor.
CglZeroHalf::CglZeroHalf | ( | const CglZeroHalf & | ) |
Copy constructor.
virtual CglZeroHalf::~CglZeroHalf | ( | ) | [virtual] |
Destructor.
virtual void CglZeroHalf::generateCuts | ( | const OsiSolverInterface & | si, |
OsiCuts & | cs, | ||
const CglTreeInfo | info = CglTreeInfo() |
||
) | const [virtual] |
Generate zero half cuts for the model accessed through the solver interface.
Insert generated cuts into the cut set cs.
Implements CglCutGenerator.
int CglZeroHalf::getFlags | ( | ) | const [inline] |
Get flags.
Definition at line 44 of file CglZeroHalf.hpp.
void CglZeroHalf::setFlags | ( | int | value | ) | [inline] |
Set flags.
Definition at line 47 of file CglZeroHalf.hpp.
virtual CglCutGenerator* CglZeroHalf::clone | ( | ) | const [virtual] |
Clone.
Implements CglCutGenerator.
CglZeroHalf& CglZeroHalf::operator= | ( | const CglZeroHalf & | rhs | ) |
Assignment operator.
virtual std::string CglZeroHalf::generateCpp | ( | FILE * | fp | ) | [virtual] |
Create C++ lines to get to current state.
Reimplemented from CglCutGenerator.
virtual void CglZeroHalf::refreshSolver | ( | OsiSolverInterface * | solver | ) | [virtual] |
This can be used to refresh any information.
Reimplemented from CglCutGenerator.
void CglZeroHalfUnitTest | ( | const OsiSolverInterface * | siP, |
const std::string | mpdDir | ||
) | [friend] |
A function that tests the methods in the CglZeroHalf class.
The only reason for it not to be a member method is that this way it doesn't have to be compiled into the library. And that's a gain, because the library should be compiled with optimization on, but this method should be compiled with debugging.