forcing_constraint_action Class Reference
Detect and process forcing constraints and useless constraints. More...
#include <CoinPresolveForcing.hpp>
Classes | |
| struct | action |
Public Member Functions | |
| const char * | name () const |
| A name for debug printing. | |
| void | postsolve (CoinPostsolveMatrix *prob) const |
| Apply the postsolve transformation for this particular presolve action. | |
| ~forcing_constraint_action () | |
Static Public Member Functions | |
| static const CoinPresolveAction * | presolve (CoinPresolveMatrix *prob, const CoinPresolveAction *next) |
Private Member Functions | |
| forcing_constraint_action () | |
| forcing_constraint_action (const forcing_constraint_action &rhs) | |
| forcing_constraint_action & | operator= (const forcing_constraint_action &rhs) |
| forcing_constraint_action (int nactions, const action *actions, const CoinPresolveAction *next) | |
Private Attributes | |
| const int | nactions_ |
| const action *const | actions_ |
Detailed Description
Detect and process forcing constraints and useless constraints.
A constraint is useless if the bounds on the variables prevent the constraint from ever being violated.
A constraint is a forcing constraint if the bounds on the constraint force the value of an involved variable to one of its bounds. A constraint can force more than one variable.
Definition at line 25 of file CoinPresolveForcing.hpp.
Constructor & Destructor Documentation
| forcing_constraint_action::forcing_constraint_action | ( | ) | [private] |
| forcing_constraint_action::forcing_constraint_action | ( | const forcing_constraint_action & | rhs | ) | [private] |
| forcing_constraint_action::forcing_constraint_action | ( | int | nactions, | |
| const action * | actions, | |||
| const CoinPresolveAction * | next | |||
| ) | [inline, private] |
Definition at line 42 of file CoinPresolveForcing.hpp.
| forcing_constraint_action::~forcing_constraint_action | ( | ) |
Member Function Documentation
| forcing_constraint_action& forcing_constraint_action::operator= | ( | const forcing_constraint_action & | rhs | ) | [private] |
| const char* forcing_constraint_action::name | ( | ) | const [virtual] |
A name for debug printing.
It is expected that the name is not stored in the transform itself.
Implements CoinPresolveAction.
| static const CoinPresolveAction* forcing_constraint_action::presolve | ( | CoinPresolveMatrix * | prob, | |
| const CoinPresolveAction * | next | |||
| ) | [static] |
| void forcing_constraint_action::postsolve | ( | CoinPostsolveMatrix * | prob | ) | const [virtual] |
Apply the postsolve transformation for this particular presolve action.
Implements CoinPresolveAction.
Member Data Documentation
const int forcing_constraint_action::nactions_ [private] |
Definition at line 38 of file CoinPresolveForcing.hpp.
const action* const forcing_constraint_action::actions_ [private] |
Definition at line 40 of file CoinPresolveForcing.hpp.
The documentation for this class was generated from the following file:
- /home/coin/svn-release/OptimizationSuite-1.1.0/CoinUtils/src/CoinPresolveForcing.hpp
