# CglAllDifferent Class Reference

AllDifferent Cut Generator Class This has a number of sets. More...

`#include <CglAllDifferent.hpp>`

Inheritance diagram for CglAllDifferent:
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Collaboration diagram for CglAllDifferent:
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List of all members.

## Public Member Functions
Generate Cuts
virtual void | generateCuts (const OsiSolverInterface &si, OsiCuts &cs, const CglTreeInfo info=CglTreeInfo())
| This fixes (or reduces bounds) on sets of all different variables.
Constructors and destructors
| CglAllDifferent ()
| Default constructor.
| CglAllDifferent (int numberSets, const int *starts, const int *which)
| Useful constructot.
| CglAllDifferent (const CglAllDifferent &)
| Copy constructor.
virtual CglCutGenerator * | clone () const
| Clone.
CglAllDifferent & | operator= (const CglAllDifferent &rhs)
| Assignment operator.
virtual | ~CglAllDifferent ()
| 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 inforamtion.
virtual bool | mayGenerateRowCutsInTree () const
| Returns true if may generate Row cuts in tree (rather than root node).
Sets and Gets
void | setLogLevel (int value)
| Set log level.
int | getLogLevel () const
| Get log level.
void | setMaxLook (int value)
| Set Maximum number of sets to look at at once.
int | getMaxLook () const
| Get Maximum number of sets to look at at once.
## Private Attributes
Private member data
int | numberSets_
| Number of sets.
int | numberDifferent_
| Total number of variables in all different sets.
int | maxLook_
| Maximum number of sets to look at at once.
int | logLevel_
| Log level - 0 none, 1 - a bit, 2 - more details.
int * | start_
| Start of each set.
int * | which_
| Members (0,1,....) not as in original model.
int * | originalWhich_
| Original members.

## Detailed Description

AllDifferent Cut Generator Class This has a number of sets.

All the members in each set are general integer variables which have to be different from all others in the set.

At present this only generates column cuts

At present it is very primitive compared to proper CSP implementations

Definition at line 20 of file CglAllDifferent.hpp.

## Constructor & Destructor Documentation

CglAllDifferent::CglAllDifferent | ( |  | ) |

Default constructor.

CglAllDifferent::CglAllDifferent | ( | int | numberSets,
|  | const int * | starts,
|  | const int * | which |
| ) |  |  |

Useful constructot.

CglAllDifferent::CglAllDifferent | ( | const CglAllDifferent & |  | ) |

Copy constructor.

virtual CglAllDifferent::~CglAllDifferent | ( |  | ) | `[virtual]`

Destructor.

## Member Function Documentation

virtual void CglAllDifferent::generateCuts | ( | const OsiSolverInterface & | si,
|  | OsiCuts & | cs,
|  | const CglTreeInfo | info = `CglTreeInfo()` |
| ) |  |  | `[virtual]`

This fixes (or reduces bounds) on sets of all different variables.

Implements CglCutGenerator.

virtual CglCutGenerator* CglAllDifferent::clone | ( |  | ) | const`[virtual]`

Clone.

Implements CglCutGenerator.

CglAllDifferent& CglAllDifferent::operator= | ( | const CglAllDifferent & | rhs | ) |

Assignment operator.

Reimplemented from CglCutGenerator.

virtual std::string CglAllDifferent::generateCpp | ( | FILE * | fp | ) | `[virtual]`

Create C++ lines to get to current state.

Reimplemented from CglCutGenerator.

virtual void CglAllDifferent::refreshSolver | ( | OsiSolverInterface * | solver | ) | `[virtual]`

This can be used to refresh any inforamtion.

Reimplemented from CglCutGenerator.

virtual bool CglAllDifferent::mayGenerateRowCutsInTree | ( |  | ) | const`[inline, virtual]`

Returns true if may generate Row cuts in tree (rather than root node).

Used so know if matrix will change in tree. Really meant so column cut generators can still be active without worrying code. Default is true

Reimplemented from CglCutGenerator.

Definition at line 69 of file CglAllDifferent.hpp.

void CglAllDifferent::setLogLevel | ( | int | value | ) | `[inline]`

Set log level.

Definition at line 75 of file CglAllDifferent.hpp.

int CglAllDifferent::getLogLevel | ( |  | ) | const`[inline]`

Get log level.

Definition at line 78 of file CglAllDifferent.hpp.

void CglAllDifferent::setMaxLook | ( | int | value | ) | `[inline]`

Set Maximum number of sets to look at at once.

Definition at line 81 of file CglAllDifferent.hpp.

int CglAllDifferent::getMaxLook | ( |  | ) | const`[inline]`

Get Maximum number of sets to look at at once.

Definition at line 84 of file CglAllDifferent.hpp.

## Member Data Documentation

int CglAllDifferent::numberSets_`[private]`

Number of sets.

Definition at line 100 of file CglAllDifferent.hpp.

int CglAllDifferent::numberDifferent_`[private]`

Total number of variables in all different sets.

Definition at line 102 of file CglAllDifferent.hpp.

int CglAllDifferent::maxLook_`[private]`

Maximum number of sets to look at at once.

Definition at line 104 of file CglAllDifferent.hpp.

int CglAllDifferent::logLevel_`[private]`

Log level - 0 none, 1 - a bit, 2 - more details.

Definition at line 106 of file CglAllDifferent.hpp.

int* CglAllDifferent::start_`[private]`

Start of each set.

Definition at line 108 of file CglAllDifferent.hpp.

int* CglAllDifferent::which_`[private]`

Members (0,1,....) not as in original model.

Definition at line 110 of file CglAllDifferent.hpp.

int* CglAllDifferent::originalWhich_`[private]`

Original members.

Definition at line 112 of file CglAllDifferent.hpp.

The documentation for this class was generated from the following file:

- /home/coin/svn-release/Alps-1.4.8/Cgl/src/CglAllDifferent/CglAllDifferent.hpp