Detect and remove entries whose sum is known. More...
#include <CoinPresolveDupcol.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. | |
virtual | ~gubrow_action () |
Static Public Member Functions | |
static const CoinPresolveAction * | presolve (CoinPresolveMatrix *prob, const CoinPresolveAction *next) |
Detect and remove entries whose sum is known.
If we have an equality row where all entries same then For other rows where all entries for that equality row are same then we can delete entries and modify rhs gubrow_action is definitely a work in progress; postsolve is unimplemented.
Definition at line 153 of file CoinPresolveDupcol.hpp.
virtual gubrow_action::~gubrow_action | ( | ) | [virtual] |
const char* gubrow_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* gubrow_action::presolve | ( | CoinPresolveMatrix * | prob, | |
const CoinPresolveAction * | next | |||
) | [static] |
void gubrow_action::postsolve | ( | CoinPostsolveMatrix * | prob | ) | const [virtual] |
Apply the postsolve transformation for this particular presolve action.
Implements CoinPresolveAction.