Detailed Description

public methods for problem variables

Author: Tobias Achterberg

Definition in file pub_var.h.

#include "scip/def.h"
#include "scip/type_retcode.h"
#include "scip/type_misc.h"
#include "scip/type_history.h"
#include "scip/type_var.h"
#include "scip/type_implics.h"
#include "scip/type_cons.h"

Go to the source code of this file.

Functions
int	SCIPvarGetNLocksDown (SCIP_VAR *var)

int	SCIPvarGetNLocksUp (SCIP_VAR *var)

SCIP_Bool	SCIPvarMayRoundDown (SCIP_VAR *var)

SCIP_Bool	SCIPvarMayRoundUp (SCIP_VAR *var)

int	SCIPvarCompareActiveAndNegated (SCIP_VAR var1, SCIP_VAR var2)

	SCIP_DECL_SORTPTRCOMP (SCIPvarCompActiveAndNegated)

int	SCIPvarCompare (SCIP_VAR var1, SCIP_VAR var2)

	SCIP_DECL_SORTPTRCOMP (SCIPvarComp)

	SCIP_DECL_SORTPTRCOMP (SCIPvarCompObj)

	SCIP_DECL_HASHGETKEY (SCIPvarGetHashkey)

	SCIP_DECL_HASHKEYEQ (SCIPvarIsHashkeyEq)

	SCIP_DECL_HASHKEYVAL (SCIPvarGetHashkeyVal)

void	SCIPvarsGetProbvar (SCIP_VAR **vars, int nvars)

SCIP_VAR *	SCIPvarGetProbvar (SCIP_VAR *var)

SCIP_RETCODE	SCIPvarsGetProbvarBinary (SCIP_VAR *vars, SCIP_Bool negatedarr, int nvars)

SCIP_RETCODE	SCIPvarGetProbvarBinary (SCIP_VAR *var, SCIP_Bool negated)

SCIP_RETCODE	SCIPvarGetProbvarBound (SCIP_VAR *var, SCIP_Real bound, SCIP_BOUNDTYPE *boundtype)

SCIP_RETCODE	SCIPvarGetProbvarHole (SCIP_VAR *var, SCIP_Real left, SCIP_Real *right)

SCIP_RETCODE	SCIPvarGetOrigvarSum (SCIP_VAR *var, SCIP_Real scalar, SCIP_Real *constant)

SCIP_Bool	SCIPvarIsTransformedOrigvar (SCIP_VAR *var)

SCIP_Longint	SCIPvarGetNBranchings (SCIP_VAR *var, SCIP_BRANCHDIR dir)

SCIP_Longint	SCIPvarGetNBranchingsCurrentRun (SCIP_VAR *var, SCIP_BRANCHDIR dir)

SCIP_Real	SCIPvarGetInferenceSum (SCIP_VAR *var, SCIP_BRANCHDIR dir)

SCIP_Real	SCIPvarGetInferenceSumCurrentRun (SCIP_VAR *var, SCIP_BRANCHDIR dir)

SCIP_Real	SCIPvarGetCutoffSum (SCIP_VAR *var, SCIP_BRANCHDIR dir)

SCIP_Real	SCIPvarGetCutoffSumCurrentRun (SCIP_VAR *var, SCIP_BRANCHDIR dir)

SCIP_Real	SCIPvarGetAvgBranchdepth (SCIP_VAR *var, SCIP_BRANCHDIR dir)

SCIP_Real	SCIPvarGetAvgBranchdepthCurrentRun (SCIP_VAR *var, SCIP_BRANCHDIR dir)

SCIP_Bool	SCIPvarHasImplic (SCIP_VAR var, SCIP_Bool varfixing, SCIP_VAR implvar, SCIP_BOUNDTYPE impltype)

SCIP_Bool	SCIPvarHasBinaryImplic (SCIP_VAR var, SCIP_Bool varfixing, SCIP_VAR implvar, SCIP_Bool implvarfixing)

SCIP_Bool	SCIPvarsHaveCommonClique (SCIP_VAR var1, SCIP_Bool value1, SCIP_VAR var2, SCIP_Bool value2, SCIP_Bool regardimplics)

SCIP_RETCODE	SCIPvarGetAggregatedObj (SCIP_VAR var, SCIP_Real aggrobj)

SCIP_RETCODE	SCIPvarSetInitial (SCIP_VAR *var, SCIP_Bool initial)

SCIP_RETCODE	SCIPvarSetRemovable (SCIP_VAR *var, SCIP_Bool removable)

const char *	SCIPvarGetName (SCIP_VAR *var)

int	SCIPvarGetNUses (SCIP_VAR *var)

SCIP_VARDATA *	SCIPvarGetData (SCIP_VAR *var)

void	SCIPvarSetData (SCIP_VAR var, SCIP_VARDATA vardata)

void	SCIPvarSetDelorigData (SCIP_VAR var, SCIP_DECL_VARDELORIG((vardelorig)))

void	SCIPvarSetTransData (SCIP_VAR var, SCIP_DECL_VARTRANS((vartrans)))

void	SCIPvarSetDeltransData (SCIP_VAR var, SCIP_DECL_VARDELTRANS((vardeltrans)))

void	SCIPvarSetCopyData (SCIP_VAR var, SCIP_DECL_VARCOPY((varcopy)))

SCIP_VARSTATUS	SCIPvarGetStatus (SCIP_VAR *var)

SCIP_Bool	SCIPvarIsOriginal (SCIP_VAR *var)

SCIP_Bool	SCIPvarIsTransformed (SCIP_VAR *var)

SCIP_Bool	SCIPvarIsNegated (SCIP_VAR *var)

SCIP_VARTYPE	SCIPvarGetType (SCIP_VAR *var)

SCIP_Bool	SCIPvarIsBinary (SCIP_VAR *var)

SCIP_Bool	SCIPvarIsIntegral (SCIP_VAR *var)

SCIP_Bool	SCIPvarIsInitial (SCIP_VAR *var)

SCIP_Bool	SCIPvarIsRemovable (SCIP_VAR *var)

SCIP_Bool	SCIPvarIsDeleted (SCIP_VAR *var)

void	SCIPvarMarkDeletable (SCIP_VAR *var)

void	SCIPvarMarkNotDeletable (SCIP_VAR *var)

SCIP_Bool	SCIPvarIsDeletable (SCIP_VAR *var)

SCIP_Bool	SCIPvarIsActive (SCIP_VAR *var)

int	SCIPvarGetIndex (SCIP_VAR *var)

int	SCIPvarGetProbindex (SCIP_VAR *var)

SCIP_VAR *	SCIPvarGetTransVar (SCIP_VAR *var)

SCIP_COL *	SCIPvarGetCol (SCIP_VAR *var)

SCIP_Bool	SCIPvarIsInLP (SCIP_VAR *var)

SCIP_VAR *	SCIPvarGetAggrVar (SCIP_VAR *var)

SCIP_Real	SCIPvarGetAggrScalar (SCIP_VAR *var)

SCIP_Real	SCIPvarGetAggrConstant (SCIP_VAR *var)

int	SCIPvarGetMultaggrNVars (SCIP_VAR *var)

SCIP_VAR **	SCIPvarGetMultaggrVars (SCIP_VAR *var)

SCIP_Real *	SCIPvarGetMultaggrScalars (SCIP_VAR *var)

SCIP_Real	SCIPvarGetMultaggrConstant (SCIP_VAR *var)

SCIP_VAR *	SCIPvarGetNegatedVar (SCIP_VAR *var)

SCIP_VAR *	SCIPvarGetNegationVar (SCIP_VAR *var)

SCIP_Real	SCIPvarGetNegationConstant (SCIP_VAR *var)

SCIP_Real	SCIPvarGetObj (SCIP_VAR *var)

SCIP_Real	SCIPvarGetUnchangedObj (SCIP_VAR *var)

SCIP_Real	SCIPvarGetLbOriginal (SCIP_VAR *var)

SCIP_Real	SCIPvarGetUbOriginal (SCIP_VAR *var)

SCIP_HOLELIST *	SCIPvarGetHolelistOriginal (SCIP_VAR *var)

SCIP_Real	SCIPvarGetLbGlobal (SCIP_VAR *var)

SCIP_Real	SCIPvarGetUbGlobal (SCIP_VAR *var)

SCIP_HOLELIST *	SCIPvarGetHolelistGlobal (SCIP_VAR *var)

SCIP_Real	SCIPvarGetBestBoundGlobal (SCIP_VAR *var)

SCIP_Real	SCIPvarGetWorstBoundGlobal (SCIP_VAR *var)

SCIP_Real	SCIPvarGetLbLocal (SCIP_VAR *var)

SCIP_Real	SCIPvarGetUbLocal (SCIP_VAR *var)

SCIP_HOLELIST *	SCIPvarGetHolelistLocal (SCIP_VAR *var)

SCIP_Real	SCIPvarGetBestBoundLocal (SCIP_VAR *var)

SCIP_Real	SCIPvarGetWorstBoundLocal (SCIP_VAR *var)

SCIP_BOUNDTYPE	SCIPvarGetBestBoundType (SCIP_VAR *var)

SCIP_BOUNDTYPE	SCIPvarGetWorstBoundType (SCIP_VAR *var)

SCIP_Real	SCIPvarGetLbLazy (SCIP_VAR *var)

SCIP_Real	SCIPvarGetUbLazy (SCIP_VAR *var)

SCIP_Real	SCIPvarGetBranchFactor (SCIP_VAR *var)

int	SCIPvarGetBranchPriority (SCIP_VAR *var)

SCIP_BRANCHDIR	SCIPvarGetBranchDirection (SCIP_VAR *var)

int	SCIPvarGetNVlbs (SCIP_VAR *var)

SCIP_VAR **	SCIPvarGetVlbVars (SCIP_VAR *var)

SCIP_Real *	SCIPvarGetVlbCoefs (SCIP_VAR *var)

SCIP_Real *	SCIPvarGetVlbConstants (SCIP_VAR *var)

int	SCIPvarGetNVubs (SCIP_VAR *var)

SCIP_VAR **	SCIPvarGetVubVars (SCIP_VAR *var)

SCIP_Real *	SCIPvarGetVubCoefs (SCIP_VAR *var)

SCIP_Real *	SCIPvarGetVubConstants (SCIP_VAR *var)

int	SCIPvarGetNImpls (SCIP_VAR *var, SCIP_Bool varfixing)

SCIP_VAR **	SCIPvarGetImplVars (SCIP_VAR *var, SCIP_Bool varfixing)

SCIP_BOUNDTYPE *	SCIPvarGetImplTypes (SCIP_VAR *var, SCIP_Bool varfixing)

SCIP_Real *	SCIPvarGetImplBounds (SCIP_VAR *var, SCIP_Bool varfixing)

int *	SCIPvarGetImplIds (SCIP_VAR *var, SCIP_Bool varfixing)

int	SCIPvarGetNCliques (SCIP_VAR *var, SCIP_Bool varfixing)

SCIP_CLIQUE **	SCIPvarGetCliques (SCIP_VAR *var, SCIP_Bool varfixing)

SCIP_Real	SCIPvarGetLPSol (SCIP_VAR *var)

SCIP_Real	SCIPvarGetNLPSol (SCIP_VAR *var)

SCIP_BDCHGINFO *	SCIPvarGetBdchgInfoLb (SCIP_VAR *var, int pos)

int	SCIPvarGetNBdchgInfosLb (SCIP_VAR *var)

SCIP_BDCHGINFO *	SCIPvarGetBdchgInfoUb (SCIP_VAR *var, int pos)

int	SCIPvarGetNBdchgInfosUb (SCIP_VAR *var)

SCIP_VALUEHISTORY *	SCIPvarGetValuehistory (SCIP_VAR *var)

SCIP_Real	SCIPvarGetLPSol_rec (SCIP_VAR *var)

SCIP_Real	SCIPvarGetNLPSol_rec (SCIP_VAR *var)

SCIP_Real	SCIPvarGetPseudoSol (SCIP_VAR *var)

SCIP_Real	SCIPvarGetSol (SCIP_VAR *var, SCIP_Bool getlpval)

SCIP_Real	SCIPvarGetRootSol (SCIP_VAR *var)

SCIP_Real	SCIPvarGetBestRootSol (SCIP_VAR *var)

SCIP_Real	SCIPvarGetBestRootRedcost (SCIP_VAR *var)

SCIP_Real	SCIPvarGetBestRootLPObjval (SCIP_VAR *var)

void	SCIPvarSetBestRootSol (SCIP_VAR *var, SCIP_Real rootsol, SCIP_Real rootredcost, SCIP_Real rootlpobjval)

SCIP_Real	SCIPvarGetAvgSol (SCIP_VAR *var)

SCIP_BDCHGINFO *	SCIPvarGetLbchgInfo (SCIP_VAR var, SCIP_BDCHGIDX bdchgidx, SCIP_Bool after)

SCIP_BDCHGINFO *	SCIPvarGetUbchgInfo (SCIP_VAR var, SCIP_BDCHGIDX bdchgidx, SCIP_Bool after)

SCIP_BDCHGINFO *	SCIPvarGetBdchgInfo (SCIP_VAR var, SCIP_BOUNDTYPE boundtype, SCIP_BDCHGIDX bdchgidx, SCIP_Bool after)

SCIP_Real	SCIPvarGetLbAtIndex (SCIP_VAR var, SCIP_BDCHGIDX bdchgidx, SCIP_Bool after)

SCIP_Real	SCIPvarGetUbAtIndex (SCIP_VAR var, SCIP_BDCHGIDX bdchgidx, SCIP_Bool after)

SCIP_Real	SCIPvarGetBdAtIndex (SCIP_VAR var, SCIP_BOUNDTYPE boundtype, SCIP_BDCHGIDX bdchgidx, SCIP_Bool after)

SCIP_Bool	SCIPvarWasFixedAtIndex (SCIP_VAR var, SCIP_BDCHGIDX bdchgidx, SCIP_Bool after)

SCIP_BDCHGIDX *	SCIPvarGetLastBdchgIndex (SCIP_VAR *var)

int	SCIPvarGetLastBdchgDepth (SCIP_VAR *var)

SCIP_Bool	SCIPvarWasFixedEarlier (SCIP_VAR var1, SCIP_VAR var2)

SCIP_Bool	SCIPbdchgidxIsEarlier (SCIP_BDCHGIDX bdchgidx1, SCIP_BDCHGIDX bdchgidx2)

SCIP_Bool	SCIPbdchgidxIsEarlierNonNull (SCIP_BDCHGIDX bdchgidx1, SCIP_BDCHGIDX bdchgidx2)

SCIP_Real	SCIPbdchginfoGetOldbound (SCIP_BDCHGINFO *bdchginfo)

SCIP_Real	SCIPbdchginfoGetNewbound (SCIP_BDCHGINFO *bdchginfo)

SCIP_VAR *	SCIPbdchginfoGetVar (SCIP_BDCHGINFO *bdchginfo)

SCIP_BOUNDCHGTYPE	SCIPbdchginfoGetChgtype (SCIP_BDCHGINFO *bdchginfo)

SCIP_BOUNDTYPE	SCIPbdchginfoGetBoundtype (SCIP_BDCHGINFO *bdchginfo)

int	SCIPbdchginfoGetDepth (SCIP_BDCHGINFO *bdchginfo)

int	SCIPbdchginfoGetPos (SCIP_BDCHGINFO *bdchginfo)

SCIP_BDCHGIDX *	SCIPbdchginfoGetIdx (SCIP_BDCHGINFO *bdchginfo)

SCIP_VAR *	SCIPbdchginfoGetInferVar (SCIP_BDCHGINFO *bdchginfo)

SCIP_CONS *	SCIPbdchginfoGetInferCons (SCIP_BDCHGINFO *bdchginfo)

SCIP_PROP *	SCIPbdchginfoGetInferProp (SCIP_BDCHGINFO *bdchginfo)

int	SCIPbdchginfoGetInferInfo (SCIP_BDCHGINFO *bdchginfo)

SCIP_BOUNDTYPE	SCIPbdchginfoGetInferBoundtype (SCIP_BDCHGINFO *bdchginfo)

SCIP_Bool	SCIPbdchginfoIsRedundant (SCIP_BDCHGINFO *bdchginfo)

SCIP_Bool	SCIPbdchginfoHasInferenceReason (SCIP_BDCHGINFO *bdchginfo)

SCIP_Bool	SCIPbdchginfoIsTighter (SCIP_BDCHGINFO bdchginfo1, SCIP_BDCHGINFO bdchginfo2)

SCIP_Real	SCIPboundchgGetNewbound (SCIP_BOUNDCHG *boundchg)

SCIP_VAR *	SCIPboundchgGetVar (SCIP_BOUNDCHG *boundchg)

SCIP_BOUNDCHGTYPE	SCIPboundchgGetBoundchgtype (SCIP_BOUNDCHG *boundchg)

SCIP_BOUNDTYPE	SCIPboundchgGetBoundtype (SCIP_BOUNDCHG *boundchg)

SCIP_Bool	SCIPboundchgIsRedundant (SCIP_BOUNDCHG *boundchg)

int	SCIPdomchgGetNBoundchgs (SCIP_DOMCHG *domchg)

SCIP_BOUNDCHG *	SCIPdomchgGetBoundchg (SCIP_DOMCHG *domchg, int pos)

SCIP_Real	SCIPholelistGetLeft (SCIP_HOLELIST *holelist)

SCIP_Real	SCIPholelistGetRight (SCIP_HOLELIST *holelist)

SCIP_HOLELIST *	SCIPholelistGetNext (SCIP_HOLELIST *holelist)

Function Documentation

int SCIPvarGetNLocksDown ( SCIP_VAR * var )

gets number of locks for rounding down

Parameters

var	problem variable

int SCIPvarGetNLocksUp ( SCIP_VAR * var )

gets number of locks for rounding up

Parameters

var	problem variable

SCIP_Bool SCIPvarMayRoundDown ( SCIP_VAR * var )

is it possible, to round variable down and stay feasible?

Parameters

var	problem variable

SCIP_Bool SCIPvarMayRoundUp ( SCIP_VAR * var )

is it possible, to round variable up and stay feasible?

Parameters

var	problem variable

int SCIPvarCompareActiveAndNegated	(	SCIP_VAR *	var1,
		SCIP_VAR *	var2
	)

compares the index of two variables, only active or negated variables are allowed, if a variable is negated then the index of the corresponding active variable is taken, returns -1 if first is smaller than, and +1 if first is greater than second variable index; returns 0 if both indices are equal, which means both variables are equal

Parameters

var1	first problem variable
var2	second problem variable

SCIP_DECL_SORTPTRCOMP ( SCIPvarCompActiveAndNegated )

comparison method for sorting active and negated variables by non-decreasing index, active and negated variables are handled as the same variables

int SCIPvarCompare	(	SCIP_VAR *	var1,
		SCIP_VAR *	var2
	)

compares the index of two variables, returns -1 if first is smaller than, and +1 if first is greater than second variable index; returns 0 if both indices are equal, which means both variables are equal

Parameters

var1	first problem variable
var2	second problem variable

SCIP_DECL_SORTPTRCOMP ( SCIPvarComp )

comparison method for sorting variables by non-decreasing index

SCIP_DECL_SORTPTRCOMP ( SCIPvarCompObj )

comparison method for sorting variables by non-decreasing objective coefficient

SCIP_DECL_HASHGETKEY ( SCIPvarGetHashkey )

hash key retrieval function for variables

SCIP_DECL_HASHKEYEQ ( SCIPvarIsHashkeyEq )

returns TRUE iff the indices of both variables are equal

SCIP_DECL_HASHKEYVAL ( SCIPvarGetHashkeyVal )

returns the hash value of the key

void SCIPvarsGetProbvar	(	SCIP_VAR **	vars,
		int	nvars
	)

gets corresponding active, fixed, or multi-aggregated problem variables of given variables,

Note: the content of the given array will/might change

Parameters

vars	array of problem variables
nvars	number of variables

SCIP_VAR* SCIPvarGetProbvar ( SCIP_VAR * var )

gets corresponding active, fixed, or multi-aggregated problem variable of a variable

Parameters

var	problem variable

SCIP_RETCODE SCIPvarsGetProbvarBinary	(	SCIP_VAR ***	vars,
		SCIP_Bool **	negatedarr,
		int	nvars
	)

gets corresponding active, fixed, or multi-aggregated problem variables of binary variables and updates the given negation status of each variable

Parameters

vars	pointer to binary problem variables
negatedarr	pointer to corresponding array to update the negation status
nvars	number of variables and values in vars and negated array

SCIP_RETCODE SCIPvarGetProbvarBinary	(	SCIP_VAR **	var,
		SCIP_Bool *	negated
	)

gets corresponding active, fixed, or multi-aggregated problem variable of a binary variable and updates the given negation status

Parameters

var	pointer to binary problem variable
negated	pointer to update the negation status

SCIP_RETCODE SCIPvarGetProbvarBound	(	SCIP_VAR **	var,
		SCIP_Real *	bound,
		SCIP_BOUNDTYPE *	boundtype
	)

transforms given variable, boundtype and bound to the corresponding active, fixed, or multi-aggregated variable values

Parameters

var	pointer to problem variable
bound	pointer to bound value to transform
boundtype	pointer to type of bound: lower or upper bound

SCIP_RETCODE SCIPvarGetProbvarHole	(	SCIP_VAR **	var,
		SCIP_Real *	left,
		SCIP_Real *	right
	)

transforms given variable and domain hole to the corresponding active, fixed, or multi-aggregated variable values

Parameters

var	pointer to problem variable
left	pointer to left bound of open interval in hole to transform
right	pointer to right bound of open interval in hole to transform

SCIP_RETCODE SCIPvarGetOrigvarSum	(	SCIP_VAR **	var,
		SCIP_Real *	scalar,
		SCIP_Real *	constant
	)

retransforms given variable, scalar and constant to the corresponding original variable, scalar and constant, if possible; if the retransformation is impossible, NULL is returned as variable

Parameters

var	pointer to problem variable x in sum a*x + c
scalar	pointer to scalar a in sum a*x + c
constant	pointer to constant c in sum a*x + c

SCIP_Bool SCIPvarIsTransformedOrigvar ( SCIP_VAR * var )

returns whether the given variable is the direct counterpart of an original problem variable

Parameters

var	problem variable

SCIP_Longint SCIPvarGetNBranchings	(	SCIP_VAR *	var,
		SCIP_BRANCHDIR	dir
	)

returns the number of times, a bound of the variable was changed in given direction due to branching

Parameters

var	problem variable
dir	branching direction (downwards, or upwards)

SCIP_Longint SCIPvarGetNBranchingsCurrentRun	(	SCIP_VAR *	var,
		SCIP_BRANCHDIR	dir
	)

returns the number of times, a bound of the variable was changed in given direction due to branching in the current run

Parameters

var	problem variable
dir	branching direction (downwards, or upwards)

SCIP_Real SCIPvarGetInferenceSum	(	SCIP_VAR *	var,
		SCIP_BRANCHDIR	dir
	)

returns the number of inferences branching on this variable in given direction triggered

Parameters

var	problem variable
dir	branching direction (downwards, or upwards)

SCIP_Real SCIPvarGetInferenceSumCurrentRun	(	SCIP_VAR *	var,
		SCIP_BRANCHDIR	dir
	)

returns the number of inferences branching on this variable in given direction triggered in the current run

Parameters

var	problem variable
dir	branching direction (downwards, or upwards)

SCIP_Real SCIPvarGetCutoffSum	(	SCIP_VAR *	var,
		SCIP_BRANCHDIR	dir
	)

returns the number of cutoffs branching on this variable in given direction produced

Parameters

var	problem variable
dir	branching direction (downwards, or upwards)

SCIP_Real SCIPvarGetCutoffSumCurrentRun	(	SCIP_VAR *	var,
		SCIP_BRANCHDIR	dir
	)

returns the number of cutoffs branching on this variable in given direction produced in the current run

Parameters

var	problem variable
dir	branching direction (downwards, or upwards)

SCIP_Real SCIPvarGetAvgBranchdepth	(	SCIP_VAR *	var,
		SCIP_BRANCHDIR	dir
	)

returns the average depth of bound changes in given direction due to branching on the variable

Parameters

var	problem variable
dir	branching direction (downwards, or upwards)

SCIP_Real SCIPvarGetAvgBranchdepthCurrentRun	(	SCIP_VAR *	var,
		SCIP_BRANCHDIR	dir
	)

returns the average depth of bound changes in given direction due to branching on the variable in the current run

Parameters

var	problem variable
dir	branching direction (downwards, or upwards)

SCIP_Bool SCIPvarHasImplic	(	SCIP_VAR *	var,
		SCIP_Bool	varfixing,
		SCIP_VAR *	implvar,
		SCIP_BOUNDTYPE	impltype
	)

returns whether there is an implication x == varfixing -> y <= b or y >= b in the implication graph; implications that are represented as cliques in the clique table are not regarded (use SCIPvarsHaveCommonClique()); both variables must be active, variable x must be binary

Parameters

var	problem variable x
varfixing	FALSE if y should be searched in implications for x == 0, TRUE for x == 1
implvar	variable y to search for
impltype	type of implication y <=/>= b to search for

SCIP_Bool SCIPvarHasBinaryImplic	(	SCIP_VAR *	var,
		SCIP_Bool	varfixing,
		SCIP_VAR *	implvar,
		SCIP_Bool	implvarfixing
	)

returns whether there is an implication x == varfixing -> y == implvarfixing in the implication graph; implications that are represented as cliques in the clique table are not regarded (use SCIPvarsHaveCommonClique()); both variables must be active binary variables

Parameters

var	problem variable x
varfixing	FALSE if y should be searched in implications for x == 0, TRUE for x == 1
implvar	variable y to search for
implvarfixing	value of the implied variable to search for

SCIP_Bool SCIPvarsHaveCommonClique	(	SCIP_VAR *	var1,
		SCIP_Bool	value1,
		SCIP_VAR *	var2,
		SCIP_Bool	value2,
		SCIP_Bool	regardimplics
	)

returns whether there is a clique that contains both given variable/value pairs; the variables must be active binary variables; if regardimplics is FALSE, only the cliques in the clique table are looked at; if regardimplics is TRUE, both the cliques and the implications of the implication graph are regarded

Parameters

var1	first variable
value1	value of first variable
var2	second variable
value2	value of second variable
regardimplics	should the implication graph also be searched for a clique?

SCIP_RETCODE SCIPvarGetAggregatedObj	(	SCIP_VAR *	var,
		SCIP_Real *	aggrobj
	)

gets corresponding objective value of active, fixed, or multi-aggregated problem variable of given variable e.g. obj(x) = 1 this method returns for ~x the value -1

Parameters

var	problem variable
aggrobj	pointer to store the aggregated objective value

SCIP_RETCODE SCIPvarSetInitial	(	SCIP_VAR *	var,
		SCIP_Bool	initial
	)

sets the initial flag of a variable; only possible for original or loose variables

Parameters

var	problem variable
initial	initial flag

SCIP_RETCODE SCIPvarSetRemovable	(	SCIP_VAR *	var,
		SCIP_Bool	removable
	)

sets the removable flag of a variable; only possible for original or loose variables

Parameters

var	problem variable
removable	removable flag

const char* SCIPvarGetName ( SCIP_VAR * var )

returns the name of the variable

Note: to change the name of a variable, use SCIPchgVarName() from scip.h

Parameters

var	problem variable

int SCIPvarGetNUses ( SCIP_VAR * var )

gets number of times, the variable is currently captured

Parameters

var	problem variable

SCIP_VARDATA* SCIPvarGetData ( SCIP_VAR * var )

returns the user data of the variable

Parameters

var	problem variable

void SCIPvarSetData	(	SCIP_VAR *	var,
		SCIP_VARDATA *	vardata
	)

sets the user data for the variable

Parameters

var	problem variable
vardata	user variable data

void SCIPvarSetDelorigData	(	SCIP_VAR *	var,
		SCIP_DECL_VARDELORIG((*vardelorig))
	)

sets method to free user data for the original variable

Parameters

var	problem variable

void SCIPvarSetTransData	(	SCIP_VAR *	var,
		SCIP_DECL_VARTRANS((*vartrans))
	)

sets method to transform user data of the variable

Parameters

var	problem variable

void SCIPvarSetDeltransData	(	SCIP_VAR *	var,
		SCIP_DECL_VARDELTRANS((*vardeltrans))
	)

sets method to free transformed user data for the variable

Parameters

var	problem variable

void SCIPvarSetCopyData	(	SCIP_VAR *	var,
		SCIP_DECL_VARCOPY((*varcopy))
	)

sets method to copy this variable into sub-SCIPs

Parameters

var	problem variable

SCIP_VARSTATUS SCIPvarGetStatus ( SCIP_VAR * var )

gets status of variable

Parameters

var	problem variable

SCIP_Bool SCIPvarIsOriginal ( SCIP_VAR * var )

returns whether the variable belongs to the original problem

Parameters

var	problem variable

SCIP_Bool SCIPvarIsTransformed ( SCIP_VAR * var )

returns whether the variable belongs to the transformed problem

Parameters

var	problem variable

SCIP_Bool SCIPvarIsNegated ( SCIP_VAR * var )

returns whether the variable was created by negation of a different variable

Parameters

var	problem variable

SCIP_VARTYPE SCIPvarGetType ( SCIP_VAR * var )

gets type of variable

Parameters

var	problem variable

SCIP_Bool SCIPvarIsBinary ( SCIP_VAR * var )

returns TRUE if the variable is of binary type; this is the case if: (1) variable type is binary (2) variable type is integer or implicit integer and (i) the lazy lower bound or the global lower bound is greater or equal to zero (ii) the lazy upper bound or the global upper bound is less tor equal to one

Parameters

var	problem variable

SCIP_Bool SCIPvarIsIntegral ( SCIP_VAR * var )

returns whether variable is of integral type (binary, integer, or implicit integer)

Parameters

var	problem variable

SCIP_Bool SCIPvarIsInitial ( SCIP_VAR * var )

returns whether variable's column should be present in the initial root LP

Parameters

var	problem variable

SCIP_Bool SCIPvarIsRemovable ( SCIP_VAR * var )

returns whether variable's column is removable from the LP (due to aging or cleanup)

Parameters

var	problem variable

SCIP_Bool SCIPvarIsDeleted ( SCIP_VAR * var )

returns whether the variable was deleted from the problem

Parameters

var	problem variable

void SCIPvarMarkDeletable ( SCIP_VAR * var )

marks the variable to be deletable, i.e., it may be deleted completely from the problem; method can only be called before the variable is added to the problem by SCIPaddVar() or SCIPaddPricedVar()

Parameters

var	problem variable

void SCIPvarMarkNotDeletable ( SCIP_VAR * var )

marks the variable to be not deletable from the problem

SCIP_Bool SCIPvarIsDeletable ( SCIP_VAR * var )

returns whether variable is allowed to be deleted completely from the problem

SCIP_Bool SCIPvarIsActive ( SCIP_VAR * var )

returns whether variable is an active (neither fixed nor aggregated) variable

Parameters

var	problem variable

int SCIPvarGetIndex ( SCIP_VAR * var )

gets unique index of variable

Parameters

var	problem variable

int SCIPvarGetProbindex ( SCIP_VAR * var )

gets position of variable in problem, or -1 if variable is not active

Parameters

var	problem variable

SCIP_VAR* SCIPvarGetTransVar ( SCIP_VAR * var )

gets transformed variable of ORIGINAL variable

Parameters

var	problem variable

SCIP_COL* SCIPvarGetCol ( SCIP_VAR * var )

gets column of COLUMN variable

Parameters

var	problem variable

SCIP_Bool SCIPvarIsInLP ( SCIP_VAR * var )

returns whether the variable is a COLUMN variable that is member of the current LP

Parameters

var	problem variable

SCIP_VAR* SCIPvarGetAggrVar ( SCIP_VAR * var )

gets aggregation variable y of an aggregated variable x = a*y + c

Parameters

var	problem variable

SCIP_Real SCIPvarGetAggrScalar ( SCIP_VAR * var )

gets aggregation scalar a of an aggregated variable x = a*y + c

Parameters

var	problem variable

SCIP_Real SCIPvarGetAggrConstant ( SCIP_VAR * var )

gets aggregation constant c of an aggregated variable x = a*y + c

Parameters

var	problem variable

int SCIPvarGetMultaggrNVars ( SCIP_VAR * var )

gets number n of aggregation variables of a multi aggregated variable x = a0*y0 + ... + a(n-1)*y(n-1) + c

Parameters

var	problem variable

SCIP_VAR** SCIPvarGetMultaggrVars ( SCIP_VAR * var )

gets vector of aggregation variables y of a multi aggregated variable x = a0*y0 + ... + a(n-1)*y(n-1) + c

Parameters

var	problem variable

SCIP_Real* SCIPvarGetMultaggrScalars ( SCIP_VAR * var )

gets vector of aggregation scalars a of a multi aggregated variable x = a0*y0 + ... + a(n-1)*y(n-1) + c

Parameters

var	problem variable

SCIP_Real SCIPvarGetMultaggrConstant ( SCIP_VAR * var )

gets aggregation constant c of a multi aggregated variable x = a0*y0 + ... + a(n-1)*y(n-1) + c

Parameters

var	problem variable

SCIP_VAR* SCIPvarGetNegatedVar ( SCIP_VAR * var )

gets the negation of the given variable; may return NULL, if no negation is existing yet

Parameters

var	negated problem variable

SCIP_VAR* SCIPvarGetNegationVar ( SCIP_VAR * var )

gets the negation variable x of a negated variable x' = offset - x

Parameters

var	negated problem variable

SCIP_Real SCIPvarGetNegationConstant ( SCIP_VAR * var )

gets the negation offset of a negated variable x' = offset - x

Parameters

var	negated problem variable

SCIP_Real SCIPvarGetObj ( SCIP_VAR * var )

gets objective function value of variable

Parameters

var	problem variable

SCIP_Real SCIPvarGetUnchangedObj ( SCIP_VAR * var )

gets the unchanged objective function value of variable (ignoring temproray changes performed in probing mode)

Parameters

var	problem variable

SCIP_Real SCIPvarGetLbOriginal ( SCIP_VAR * var )

gets original lower bound of original problem variable (i.e. the bound set in problem creation)

Parameters

var	original problem variable

SCIP_Real SCIPvarGetUbOriginal ( SCIP_VAR * var )

gets original upper bound of original problem variable (i.e. the bound set in problem creation)

Parameters

var	original problem variable

SCIP_HOLELIST* SCIPvarGetHolelistOriginal ( SCIP_VAR * var )

gets the original hole list of an original variable

Parameters

var	problem variable

SCIP_Real SCIPvarGetLbGlobal ( SCIP_VAR * var )

gets global lower bound of variable

Parameters

var	problem variable

SCIP_Real SCIPvarGetUbGlobal ( SCIP_VAR * var )

gets global upper bound of variable

Parameters

var	problem variable

SCIP_HOLELIST* SCIPvarGetHolelistGlobal ( SCIP_VAR * var )

gets the global hole list of an active variable

Parameters

var	problem variable

SCIP_Real SCIPvarGetBestBoundGlobal ( SCIP_VAR * var )

gets best global bound of variable with respect to the objective function

Parameters

var	problem variable

SCIP_Real SCIPvarGetWorstBoundGlobal ( SCIP_VAR * var )

gets worst global bound of variable with respect to the objective function

Parameters

var	problem variable

SCIP_Real SCIPvarGetLbLocal ( SCIP_VAR * var )

gets current lower bound of variable

Parameters

var	problem variable

SCIP_Real SCIPvarGetUbLocal ( SCIP_VAR * var )

gets current upper bound of variable

Parameters

var	problem variable

SCIP_HOLELIST* SCIPvarGetHolelistLocal ( SCIP_VAR * var )

gets the current hole list of an active variable

Parameters

var	problem variable

SCIP_Real SCIPvarGetBestBoundLocal ( SCIP_VAR * var )

gets best local bound of variable with respect to the objective function

Parameters

var	problem variable

SCIP_Real SCIPvarGetWorstBoundLocal ( SCIP_VAR * var )

gets worst local bound of variable with respect to the objective function

Parameters

var	problem variable

SCIP_BOUNDTYPE SCIPvarGetBestBoundType ( SCIP_VAR * var )

gets type (lower or upper) of best bound of variable with respect to the objective function

Parameters

var	problem variable

SCIP_BOUNDTYPE SCIPvarGetWorstBoundType ( SCIP_VAR * var )

gets type (lower or upper) of worst bound of variable with respect to the objective function

Parameters

var	problem variable

SCIP_Real SCIPvarGetLbLazy ( SCIP_VAR * var )

gets lazy lower bound of variable

Parameters

var	problem variable

SCIP_Real SCIPvarGetUbLazy ( SCIP_VAR * var )

gets lazy upper bound of variable

Parameters

var	problem variable

SCIP_Real SCIPvarGetBranchFactor ( SCIP_VAR * var )

gets the branch factor of the variable; this value can be used in the branching methods to scale the score values of the variables; higher factor leads to a higher probability that this variable is chosen for branching

Parameters

var	problem variable

int SCIPvarGetBranchPriority ( SCIP_VAR * var )

gets the branch priority of the variable; variables with higher priority should always be preferred to variables with lower priority

Parameters

var	problem variable

SCIP_BRANCHDIR SCIPvarGetBranchDirection ( SCIP_VAR * var )

gets the preferred branch direction of the variable (downwards, upwards, or auto)

Parameters

var	problem variable

int SCIPvarGetNVlbs ( SCIP_VAR * var )

gets number of variable lower bounds x >= b_i*z_i + d_i of given variable x

Parameters

var	problem variable

SCIP_VAR** SCIPvarGetVlbVars ( SCIP_VAR * var )

gets array with bounding variables z_i in variable lower bounds x >= b_i*z_i + d_i of given variable x; the variable bounds are sorted by increasing variable index of the bounding variable z_i (see SCIPvarGetIndex())

Parameters

var	problem variable

SCIP_Real* SCIPvarGetVlbCoefs ( SCIP_VAR * var )

gets array with bounding coefficients b_i in variable lower bounds x >= b_i*z_i + d_i of given variable x

Parameters

var	problem variable

SCIP_Real* SCIPvarGetVlbConstants ( SCIP_VAR * var )

gets array with bounding constants d_i in variable lower bounds x >= b_i*z_i + d_i of given variable x

Parameters

var	problem variable

int SCIPvarGetNVubs ( SCIP_VAR * var )

gets number of variable upper bounds x <= b_i*z_i + d_i of given variable x

Parameters

var	problem variable

SCIP_VAR** SCIPvarGetVubVars ( SCIP_VAR * var )

gets array with bounding variables z_i in variable upper bounds x <= b_i*z_i + d_i of given variable x; the variable bounds are sorted by increasing variable index of the bounding variable z_i (see SCIPvarGetIndex())

Parameters

var	problem variable

SCIP_Real* SCIPvarGetVubCoefs ( SCIP_VAR * var )

gets array with bounding coefficients b_i in variable upper bounds x <= b_i*z_i + d_i of given variable x

Parameters

var	problem variable

SCIP_Real* SCIPvarGetVubConstants ( SCIP_VAR * var )

gets array with bounding constants d_i in variable upper bounds x <= b_i*z_i + d_i of given variable x

Parameters

var	problem variable

int SCIPvarGetNImpls	(	SCIP_VAR *	var,
		SCIP_Bool	varfixing
	)

gets number of implications y <= b or y >= b for x == 0 or x == 1 of given active problem variable x, there are no implications for nonbinary variable x

Parameters

var	active problem variable
varfixing	FALSE for implications for x == 0, TRUE for x == 1

SCIP_VAR** SCIPvarGetImplVars	(	SCIP_VAR *	var,
		SCIP_Bool	varfixing
	)

gets array with implication variables y of implications y <= b or y >= b for x == 0 or x == 1 of given active problem variable x, there are no implications for nonbinary variable x; the implications are sorted such that implications with binary implied variables precede the ones with non-binary implied variables, and as a second criteria, the implied variables are sorted by increasing variable index (see SCIPvarGetIndex())

Parameters

var	active problem variable
varfixing	FALSE for implications for x == 0, TRUE for x == 1

SCIP_BOUNDTYPE* SCIPvarGetImplTypes	(	SCIP_VAR *	var,
		SCIP_Bool	varfixing
	)

gets array with implication types of implications y <= b or y >= b for x == 0 or x == 1 of given active problem variable x (SCIP_BOUNDTYPE_UPPER if y <= b, SCIP_BOUNDTYPE_LOWER if y >= b), there are no implications for nonbinary variable x

Parameters

var	active problem variable
varfixing	FALSE for implications for x == 0, TRUE for x == 1

SCIP_Real* SCIPvarGetImplBounds	(	SCIP_VAR *	var,
		SCIP_Bool	varfixing
	)

gets array with implication bounds b of implications y <= b or y >= b for x == 0 or x == 1 of given active problem variable x, there are no implications for nonbinary variable x

Parameters

var	active problem variable
varfixing	FALSE for implications for x == 0, TRUE for x == 1

int* SCIPvarGetImplIds	(	SCIP_VAR *	var,
		SCIP_Bool	varfixing
	)

Gets array with unique ids of implications y <= b or y >= b for x == 0 or x == 1 of given active problem variable x, there are no implications for nonbinary variable x. If an implication is a shortcut, i.e., it was added as part of the transitive closure of another implication, its id is negative, otherwise it is nonnegative.

Parameters

var	active problem variable
varfixing	FALSE for implications for x == 0, TRUE for x == 1

int SCIPvarGetNCliques	(	SCIP_VAR *	var,
		SCIP_Bool	varfixing
	)

gets number of cliques, the active variable is contained in

Parameters

var	active problem variable
varfixing	FALSE for cliques containing x == 0, TRUE for x == 1

SCIP_CLIQUE** SCIPvarGetCliques	(	SCIP_VAR *	var,
		SCIP_Bool	varfixing
	)

gets array of cliques, the active variable is contained in

Parameters

var	active problem variable
varfixing	FALSE for cliques containing x == 0, TRUE for x == 1

SCIP_Real SCIPvarGetLPSol ( SCIP_VAR * var )

gets primal LP solution value of variable

Parameters

var	problem variable

SCIP_Real SCIPvarGetNLPSol ( SCIP_VAR * var )

gets primal NLP solution value of variable

Parameters

var	problem variable

SCIP_BDCHGINFO* SCIPvarGetBdchgInfoLb	(	SCIP_VAR *	var,
		int	pos
	)

return lower bound change info at requested position

Parameters

var	problem variable
pos	requested position

int SCIPvarGetNBdchgInfosLb ( SCIP_VAR * var )

gets the number of lower bound change info array

Parameters

var	problem variable

SCIP_BDCHGINFO* SCIPvarGetBdchgInfoUb	(	SCIP_VAR *	var,
		int	pos
	)

return upper bound change info at requested position

Parameters

var	problem variable
pos	requested position

int SCIPvarGetNBdchgInfosUb ( SCIP_VAR * var )

gets the number upper bound change info array

Parameters

var	problem variable

SCIP_VALUEHISTORY* SCIPvarGetValuehistory ( SCIP_VAR * var )

returns the value based history for the variable

Parameters

var	problem variable

SCIP_Real SCIPvarGetLPSol_rec ( SCIP_VAR * var )

gets primal LP solution value of variable

Parameters

var	problem variable

SCIP_Real SCIPvarGetNLPSol_rec ( SCIP_VAR * var )

gets primal NLP solution value of variable

Parameters

var	problem variable

SCIP_Real SCIPvarGetPseudoSol ( SCIP_VAR * var )

gets pseudo solution value of variable at current node

Parameters

var	problem variable

SCIP_Real SCIPvarGetSol	(	SCIP_VAR *	var,
		SCIP_Bool	getlpval
	)

gets current LP or pseudo solution value of variable

Parameters

var	problem variable
getlpval	should the LP solution value be returned?

SCIP_Real SCIPvarGetRootSol ( SCIP_VAR * var )

returns the solution of the variable in the last root node's relaxation, if the root relaxation is not yet completely solved, zero is returned

Parameters

var	problem variable

SCIP_Real SCIPvarGetBestRootSol ( SCIP_VAR * var )

returns the best solution (w.r.t. root reduced cost propagation) of the variable in the root node's relaxation, if the root relaxation is not yet completely solved, zero is returned

Parameters

var	problem variable

SCIP_Real SCIPvarGetBestRootRedcost ( SCIP_VAR * var )

returns the best reduced costs (w.r.t. root reduced cost propagation) of the variable in the root node's relaxation, if the root relaxation is not yet completely solved, or the variable was no column of the root LP, SCIP_INVALID is returned

Parameters

var	problem variable

SCIP_Real SCIPvarGetBestRootLPObjval ( SCIP_VAR * var )

returns the best objective value (w.r.t. root reduced cost propagation) of the root LP which belongs the root reduced cost which is accessible via SCIPvarGetRootRedcost() or the variable was no column of the root LP, SCIP_INVALID is returned

Parameters

var	problem variable

void SCIPvarSetBestRootSol	(	SCIP_VAR *	var,
		SCIP_Real	rootsol,
		SCIP_Real	rootredcost,
		SCIP_Real	rootlpobjval
	)

set the given solution as the best root solution w.r.t. root reduced cost propagation in the variables

Parameters

var	problem variable
rootsol	root solution value
rootredcost	root reduced cost
rootlpobjval	objective value of the root LP

SCIP_Real SCIPvarGetAvgSol ( SCIP_VAR * var )

returns a weighted average solution value of the variable in all feasible primal solutions found so far

Parameters

var	problem variable

SCIP_BDCHGINFO* SCIPvarGetLbchgInfo	(	SCIP_VAR *	var,
		SCIP_BDCHGIDX *	bdchgidx,
		SCIP_Bool	after
	)

returns the bound change information for the last lower bound change on given active problem variable before or after the bound change with the given index was applied; returns NULL, if no change to the lower bound was applied up to this point of time

Parameters

var	active problem variable
bdchgidx	bound change index representing time on path to current node
after	should the bound change with given index be included?

SCIP_BDCHGINFO* SCIPvarGetUbchgInfo	(	SCIP_VAR *	var,
		SCIP_BDCHGIDX *	bdchgidx,
		SCIP_Bool	after
	)

returns the bound change information for the last upper bound change on given active problem variable before or after the bound change with the given index was applied; returns NULL, if no change to the upper bound was applied up to this point of time

Parameters

var	active problem variable
bdchgidx	bound change index representing time on path to current node
after	should the bound change with given index be included?

SCIP_BDCHGINFO* SCIPvarGetBdchgInfo	(	SCIP_VAR *	var,
		SCIP_BOUNDTYPE	boundtype,
		SCIP_BDCHGIDX *	bdchgidx,
		SCIP_Bool	after
	)

returns the bound change information for the last lower or upper bound change on given active problem variable before or after the bound change with the given index was applied; returns NULL, if no change to the lower/upper bound was applied up to this point of time

Parameters

var	active problem variable
boundtype	type of bound: lower or upper bound
bdchgidx	bound change index representing time on path to current node
after	should the bound change with given index be included?

SCIP_Real SCIPvarGetLbAtIndex	(	SCIP_VAR *	var,
		SCIP_BDCHGIDX *	bdchgidx,
		SCIP_Bool	after
	)

returns lower bound of variable directly before or after the bound change given by the bound change index was applied

Parameters

var	problem variable
bdchgidx	bound change index representing time on path to current node
after	should the bound change with given index be included?

SCIP_Real SCIPvarGetUbAtIndex	(	SCIP_VAR *	var,
		SCIP_BDCHGIDX *	bdchgidx,
		SCIP_Bool	after
	)

returns upper bound of variable directly before or after the bound change given by the bound change index was applied

Parameters

var	problem variable
bdchgidx	bound change index representing time on path to current node
after	should the bound change with given index be included?

SCIP_Real SCIPvarGetBdAtIndex	(	SCIP_VAR *	var,
		SCIP_BOUNDTYPE	boundtype,
		SCIP_BDCHGIDX *	bdchgidx,
		SCIP_Bool	after
	)

returns lower or upper bound of variable directly before or after the bound change given by the bound change index was applied

Parameters

var	problem variable
boundtype	type of bound: lower or upper bound
bdchgidx	bound change index representing time on path to current node
after	should the bound change with given index be included?

SCIP_Bool SCIPvarWasFixedAtIndex	(	SCIP_VAR *	var,
		SCIP_BDCHGIDX *	bdchgidx,
		SCIP_Bool	after
	)

returns whether the binary variable was fixed at the time given by the bound change index

Parameters

var	problem variable
bdchgidx	bound change index representing time on path to current node
after	should the bound change with given index be included?

SCIP_BDCHGIDX* SCIPvarGetLastBdchgIndex ( SCIP_VAR * var )

returns the last bound change index, at which the bounds of the given variable were tightened

Parameters

var	problem variable

int SCIPvarGetLastBdchgDepth ( SCIP_VAR * var )

returns the last depth level, at which the bounds of the given variable were tightened; returns -2, if the variable's bounds are still the global bounds returns -1, if the variable was fixed in presolving

Parameters

var	problem variable

SCIP_Bool SCIPvarWasFixedEarlier	(	SCIP_VAR *	var1,
		SCIP_VAR *	var2
	)

returns whether the first binary variable was fixed earlier than the second one; returns FALSE, if the first variable is not fixed, and returns TRUE, if the first variable is fixed, but the second one is not fixed

Parameters

var1	first binary variable
var2	second binary variable

SCIP_Bool SCIPbdchgidxIsEarlier	(	SCIP_BDCHGIDX *	bdchgidx1,
		SCIP_BDCHGIDX *	bdchgidx2
	)

returns whether first bound change index belongs to an earlier applied bound change than second one; if a bound change index is NULL, the bound change index represents the current time, i.e. the time after the last bound change was applied to the current node

Parameters

bdchgidx1	first bound change index, or NULL
bdchgidx2	second bound change index, or NULL

SCIP_Bool SCIPbdchgidxIsEarlierNonNull	(	SCIP_BDCHGIDX *	bdchgidx1,
		SCIP_BDCHGIDX *	bdchgidx2
	)

returns whether first bound change index belongs to an earlier applied bound change than second one

Parameters

bdchgidx1	first bound change index
bdchgidx2	second bound change index

SCIP_Real SCIPbdchginfoGetOldbound ( SCIP_BDCHGINFO * bdchginfo )

returns old bound that was overwritten for given bound change information

Parameters