#include "CoinPragma.hpp"#include "CoinPackedMatrix.hpp"#include "CoinMessage.hpp"#include "CoinTime.hpp"#include <cmath>#include <cassert>#include <cfloat>#include <cstdlib>
Go to the source code of this file.
Classes | |
| class | CoinPresolveAction |
| Abstract base class of all presolve routines. More... | |
| class | CoinPrePostsolveMatrix |
| Collects all the information about the problem that is needed in both presolve and postsolve. More... | |
| class | presolvehlink |
| Links to aid in packed matrix modification. More... | |
| class | CoinPresolveMatrix |
| Augments CoinPrePostsolveMatrix with information about the problem that is only needed during presolve. More... | |
| class | CoinPostsolveMatrix |
| Augments CoinPrePostsolveMatrix with information about the problem that is only needed during postsolve. More... | |
Macros | |
| #define | deleteAction(array, type) delete[] array |
| #define | PRESOLVEASSERT(x) |
| #define | PRESOLVE_STMT(s) |
| #define | PRESOLVE_DETAIL_PRINT(s) |
| #define | PRESOLVE_INF COIN_DBL_MAX |
| The usual finite infinity. More... | |
| #define | PRESOLVE_SMALL_INF 1.0e20 |
| And a small infinity. More... | |
| #define | PRESOLVEFINITE(n) (-PRESOLVE_INF < (n) && (n) < PRESOLVE_INF) |
| Check for infinity using finite infinity. More... | |
| #define | NO_LINK -66666666 |
Functions | |
| void | DIE (const char *) |
| double * | presolve_dupmajor (const double *elems, const int *indices, int length, CoinBigIndex offset, int tgt=-1) |
Duplicate a major-dimension vector; optionally omit the entry with minor index tgt. More... | |
| void | coin_init_random_vec (double *work, int n) |
| Initialize a vector with random numbers. More... | |
Variables | |
| const double | ZTOLDP = 1e-12 |
| Zero tolerance. More... | |
| const double | ZTOLDP2 = 1e-10 |
| Alternate zero tolerance. More... | |
Detailed Description
Declarations for CoinPresolveMatrix and CoinPostsolveMatrix and their common base class CoinPrePostsolveMatrix. Also declarations for CoinPresolveAction and a number of non-member utility functions.
Definition in file CoinPresolveMatrix.hpp.
Macro Definition Documentation
| #define deleteAction | ( | array, | |
| type | |||
| ) | delete[] array |
Definition at line 38 of file CoinPresolveMatrix.hpp.
Referenced by drop_empty_cols_action::~drop_empty_cols_action(), drop_empty_rows_action::~drop_empty_rows_action(), drop_zero_coefficients_action::~drop_zero_coefficients_action(), make_fixed_action::~make_fixed_action(), slack_doubleton_action::~slack_doubleton_action(), and slack_singleton_action::~slack_singleton_action().
| #define PRESOLVEASSERT | ( | x | ) |
Definition at line 72 of file CoinPresolveMatrix.hpp.
| #define PRESOLVE_STMT | ( | s | ) |
Definition at line 75 of file CoinPresolveMatrix.hpp.
Referenced by CoinPresolveMatrix::change_bias().
| #define PRESOLVE_DETAIL_PRINT | ( | s | ) |
Definition at line 87 of file CoinPresolveMatrix.hpp.
| #define PRESOLVE_INF COIN_DBL_MAX |
The usual finite infinity.
Definition at line 106 of file CoinPresolveMatrix.hpp.
Referenced by CoinPrePostsolveMatrix::setColumnStatus().
| #define PRESOLVE_SMALL_INF 1.0e20 |
And a small infinity.
Definition at line 108 of file CoinPresolveMatrix.hpp.
| #define PRESOLVEFINITE | ( | n | ) | (-PRESOLVE_INF < (n) && (n) < PRESOLVE_INF) |
Check for infinity using finite infinity.
Definition at line 110 of file CoinPresolveMatrix.hpp.
| #define NO_LINK -66666666 |
Definition at line 814 of file CoinPresolveMatrix.hpp.
Referenced by presolvehlink::PRESOLVE_MOVE_LINK(), and presolvehlink::PRESOLVE_REMOVE_LINK().
Function Documentation
|
inline |
Definition at line 79 of file CoinPresolveMatrix.hpp.
Referenced by CoinPrePostsolveMatrix::presolve_find_minor().
Variable Documentation
| const double ZTOLDP = 1e-12 |
Zero tolerance.
OSL had a fixed zero tolerance; we still use that here.
Definition at line 98 of file CoinPresolveMatrix.hpp.
| const double ZTOLDP2 = 1e-10 |
Alternate zero tolerance.
Use a different one if we are doing doubletons, etc.
Definition at line 103 of file CoinPresolveMatrix.hpp.
