heur_trivialnegation.c File Reference

Detailed Description

trivialnegation primal heuristic

Author

Jakob Witzig

Definition in file heur_trivialnegation.c.

#include <assert.h>
#include <string.h>
#include "scip/heur_trivialnegation.h"
#include "scip/pub_reopt.h"
#include "scip/struct_scip.h"

Go to the source code of this file.

Macros
#define	HEUR_NAME   "trivialnegation"
#define	HEUR_DESC   "negate solution entries if an objective coefficient changes the sign, enters or leaves the objective."
#define	HEUR_DISPCHAR   'j'
#define	HEUR_PRIORITY   40000
#define	HEUR_FREQ   0
#define	HEUR_FREQOFS   0
#define	HEUR_MAXDEPTH   0
#define	HEUR_TIMING   SCIP_HEURTIMING_BEFORENODE
#define	HEUR_USESSUBSCIP   FALSE

Functions
static	SCIP_DECL_HEURCOPY (heurCopyTrivialnegation)
static	SCIP_DECL_HEUREXEC (heurExecTrivialnegation)
SCIP_RETCODE	SCIPincludeHeurTrivialnegation (SCIP *scip)

Macro Definition Documentation

HEUR_NAME

#define HEUR_NAME   "trivialnegation"

Definition at line 30 of file heur_trivialnegation.c.

Referenced by SCIP_DECL_HEURCOPY(), and SCIPincludeHeurTrivialnegation().

HEUR_DESC

#define HEUR_DESC   "negate solution entries if an objective coefficient changes the sign, enters or leaves the objective."

Definition at line 31 of file heur_trivialnegation.c.

Referenced by SCIPincludeHeurTrivialnegation().

HEUR_DISPCHAR

#define HEUR_DISPCHAR   'j'

Definition at line 32 of file heur_trivialnegation.c.

Referenced by SCIPincludeHeurTrivialnegation().

HEUR_PRIORITY

#define HEUR_PRIORITY   40000

Definition at line 33 of file heur_trivialnegation.c.

Referenced by SCIPincludeHeurTrivialnegation().

HEUR_FREQ

#define HEUR_FREQ   0

Definition at line 34 of file heur_trivialnegation.c.

Referenced by SCIPincludeHeurTrivialnegation().

HEUR_FREQOFS

#define HEUR_FREQOFS   0

Definition at line 35 of file heur_trivialnegation.c.

Referenced by SCIPincludeHeurTrivialnegation().

HEUR_MAXDEPTH

#define HEUR_MAXDEPTH   0

Definition at line 36 of file heur_trivialnegation.c.

Referenced by SCIPincludeHeurTrivialnegation().

HEUR_TIMING

#define HEUR_TIMING   SCIP_HEURTIMING_BEFORENODE

Definition at line 37 of file heur_trivialnegation.c.

Referenced by SCIPincludeHeurTrivialnegation().

HEUR_USESSUBSCIP

#define HEUR_USESSUBSCIP   FALSE

does the heuristic use a secondary SCIP instance?

Definition at line 38 of file heur_trivialnegation.c.

Referenced by SCIPincludeHeurTrivialnegation().

Function Documentation

SCIP_DECL_HEURCOPY()

static SCIP_DECL_HEURCOPY ( heurCopyTrivialnegation  )

static

copy method for primal heuristic plugins (called when SCIP copies plugins)

Definition at line 46 of file heur_trivialnegation.c.

References HEUR_NAME, SCIP_CALL, SCIP_OKAY, SCIPheurGetName(), and SCIPincludeHeurTrivialnegation().

SCIP_DECL_HEUREXEC()

static SCIP_DECL_HEUREXEC ( heurExecTrivialnegation  )

static

execution method of primal heuristic

Definition at line 61 of file heur_trivialnegation.c.

References FALSE, SCIP_Bool, SCIP_CALL, SCIP_DIDNOTFIND, SCIP_DIDNOTRUN, SCIP_FOUNDSOL, SCIP_OKAY, SCIP_Real, SCIP_VARTYPE_BINARY, SCIPcreateSol(), SCIPdebug, SCIPdebugMsg, SCIPfreeSol(), SCIPgetCutoffbound(), SCIPgetNBinVars(), SCIPgetNReoptRuns(), SCIPgetNVars(), SCIPgetReoptLastOptSol(), SCIPgetReoptOldObjCoef(), SCIPgetSolTransObj(), SCIPgetSolVal(), SCIPgetVars(), SCIPisFeasEQ(), SCIPisFeasLT(), SCIPisNegative(), SCIPisPositive(), SCIPisReoptEnabled(), SCIPisZero(), SCIPprintSol(), SCIPsetSolVal(), SCIPsolGetHeur(), SCIPtrySol(), SCIPvarGetLbGlobal(), SCIPvarGetName(), SCIPvarGetType(), SCIPvarGetUbGlobal(), SCIPvarIsActive(), and TRUE.