scip_lp.h
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38 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
92 /** makes sure that the LP of the current node is loaded and may be accessed through the LP information methods
94 * @warning Contructing the LP might change the amount of variables known in the transformed problem and therefore also
95 * the variables array of SCIP (returned by SCIPgetVars() and SCIPgetVarsData()), so it might be necessary to
98 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
114 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
169 /** returns whether the current lp is a relaxation of the current problem and its optimal objective value is a local lower bound
171 * @return whether the current lp is a relaxation of the current problem and its optimal objective value is a local lower bound.
185 * @return the objective value of current LP (which is the sum of column and loose objective value).
190 * @note This method returns the objective value of the current LP solution, which might be primal or dual infeasible
191 * if a limit was hit during solving. It must not be used as a dual bound if the LP solution status returned by
229 /** gets the global pseudo objective value; that is all variables set to their best (w.r.t. the objective
232 * @return the global pseudo objective value; that is all variables set to their best (w.r.t. the objective
250 /** gets the pseudo objective value for the current search node; that is all variables set to their best (w.r.t. the
253 * @return the pseudo objective value for the current search node; that is all variables set to their best (w.r.t. the
271 /** returns whether the root lp is a relaxation of the problem and its optimal objective value is a global lower bound
273 * @return whether the root lp is a relaxation of the problem and its optimal objective value is a global lower bound.
285 /** gets the objective value of the root node LP or SCIP_INVALID if the root node LP was not (yet) solved
287 * @return the objective value of the root node LP or SCIP_INVALID if the root node LP was not (yet) solved.
302 /** gets part of the objective value of the root node LP that results from COLUMN variables only;
305 * @return the part of the objective value of the root node LP that results from COLUMN variables only;
321 /** gets part of the objective value of the root node LP that results from LOOSE variables only;
324 * @return the part of the objective value of the root node LP that results from LOOSE variables only;
355 * Sets primal feasibility tolerance to min of numerics/lpfeastolfactor * numerics/feastol and relaxfeastol.
364 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
423 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
466 /** returns TRUE iff all columns, i.e. every variable with non-empty column w.r.t. all ever created rows, are present
467 * in the LP, and FALSE, if there are additional already existing columns, that may be added to the LP in pricing
469 * @return TRUE iff all columns, i.e. every variable with non-empty column w.r.t. all ever created rows, are present
470 * in the LP, and FALSE, if there are additional already existing columns, that may be added to the LP in pricing.
496 /** gets all indices of basic columns and rows: index i >= 0 corresponds to column i, index i < 0 to row -i-1
498 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
514 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
534 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
556 /** gets a row from the product of inverse basis matrix B^-1 and coefficient matrix A (i.e. from B^-1 * A)
558 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
577 /** gets a column from the product of inverse basis matrix B^-1 and coefficient matrix A (i.e. from B^-1 * A),
580 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
598 /** calculates a weighted sum of all LP rows; for negative weights, the left and right hand side of the corresponding
601 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
613 SCIP_REALARRAY* sumcoef, /**< array to store sum coefficients indexed by variables' probindex */
618 /** interrupts or disables the interrupt of the currently ongoing lp solve; if the lp is not currently constructed just returns with no effect
620 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
636 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
652 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
673 * @warning You have to make sure, that the full internal state of the LPI does not change or is recovered completely
674 * after the end of the method that uses the LPI. In particular, if you manipulate the LP or its solution
675 * (e.g. by calling one of the SCIPlpiAdd...() or one of the SCIPlpiSolve...() methods), you have to check in
676 * advance with SCIPlpiWasSolved() whether the LP is currently solved. If this is the case, you have to make
677 * sure, the internal solution status is recovered completely at the end of your method. This can be achieved
678 * by getting the LPI state before applying any LPI manipulations with SCIPlpiGetState() and restoring it
679 * afterwards with SCIPlpiSetState() and SCIPlpiFreeState(). Additionally you have to resolve the LP with the
682 * @warning Make also sure, that all parameter values that you have changed are set back to their original values.
684 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
706 /** Displays quality information about the current LP solution. An LP solution need to be available. Information printed
709 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
737 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
776 * @note calling this method in SCIP_STAGE_SOLVED is only recommended to experienced users and should only be called
779 * @note The return value of this method should be used carefully if the dual feasibility check was explictely disabled.
820 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
839 SCIP_Bool modifiable, /**< is row modifiable during node processing (subject to column generation)? */
845 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
864 SCIP_Bool modifiable, /**< is row modifiable during node processing (subject to column generation)? */
870 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
889 SCIP_Bool modifiable, /**< is row modifiable during node processing (subject to column generation)? */
895 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
913 SCIP_Bool modifiable, /**< is row modifiable during node processing (subject to column generation)? */
919 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
926 * @deprecated Please use SCIPcreateRowConshdlr() or SCIPcreateRowSepa() when calling from a constraint handler or separator in order
927 * to facilitate correct statistics. If the call is from neither a constraint handler or separator, use SCIPcreateRowUnspec().
940 SCIP_Bool modifiable, /**< is row modifiable during node processing (subject to column generation)? */
946 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
962 SCIP_Bool modifiable, /**< is row modifiable during node processing (subject to column generation)? */
968 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
984 SCIP_Bool modifiable, /**< is row modifiable during node processing (subject to column generation)? */
990 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1006 SCIP_Bool modifiable, /**< is row modifiable during node processing (subject to column generation)? */
1012 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1027 SCIP_Bool modifiable, /**< is row modifiable during node processing (subject to column generation)? */
1033 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1040 * @deprecated Please use SCIPcreateEmptyRowConshdlr() or SCIPcreateEmptyRowSepa() when calling from a constraint handler or separator in order
1041 * to facilitate correct statistics. If the call is from neither a constraint handler or separator, use SCIPcreateEmptyRowUnspec().
1051 SCIP_Bool modifiable, /**< is row modifiable during node processing (subject to column generation)? */
1057 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1072 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1088 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1104 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1118 /** informs row, that all subsequent additions of variables to the row should be cached and not directly applied;
1120 * while the caching of row extensions is activated, information methods of the row give invalid results;
1121 * caching should be used, if a row is build with SCIPaddVarToRow() calls variable by variable to increase
1124 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1137 /** flushes all cached row extensions after a call of SCIPcacheRowExtensions() and merges coefficients with
1140 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1155 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1158 * @attention If the absolute value of val is below the SCIP epsilon tolerance, the variable will not added.
1164 * @note In case calling this method in the enforcement process of an lp solution, it might be that some variables,
1165 * that were not yet in the LP (e.g. dynamic columns) will change their lp solution value returned by SCIP.
1166 * For example, a variable, which has a negative objective value, that has no column in the lp yet, is in the lp solution
1167 * on its upper bound (variables with status SCIP_VARSTATUS_LOOSE are in an lp solution on it's best bound), but
1168 * creating the column, changes the solution value (variable than has status SCIP_VARSTATUS_COLUMN, and the
1169 * initialization sets the lp solution value) to 0.0. (This leads to the conclusion that, if a constraint was
1172 * @note When several variables are added to a row with the use of this function, performance can be improved by
1186 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1189 * @attention If a coefficients absolute value is below the SCIP epsilon tolerance, the variable with its value is not added.
1207 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1210 * @attention If the absolute value of val is below the SCIP epsilon tolerance, the variables will not added.
1225 /** tries to find a value, such that all row coefficients, if scaled with this value become integral
1227 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1238 SCIP_Real mindelta, /**< minimal relative allowed difference of scaled coefficient s*c and integral i */
1239 SCIP_Real maxdelta, /**< maximal relative allowed difference of scaled coefficient s*c and integral i */
1242 SCIP_Bool usecontvars, /**< should the coefficients of the continuous variables also be made integral? */
1243 SCIP_Real* intscalar, /**< pointer to store scalar that would make the coefficients integral, or NULL */
1249 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1260 SCIP_Real mindelta, /**< minimal relative allowed difference of scaled coefficient s*c and integral i */
1261 SCIP_Real maxdelta, /**< maximal relative allowed difference of scaled coefficient s*c and integral i */
1264 SCIP_Bool usecontvars, /**< should the coefficients of the continuous variables also be made integral? */
1349 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1389 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1414 /** returns the feasibility of a row for the current pseudo solution: negative value means infeasibility
1416 * @return the feasibility of a row for the current pseudo solution: negative value means infeasibility
1429 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1497 * @return 1 is returned if the row is parallel to the objective function and 0 if it is orthogonal
1510 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1533 /** initiates LP diving, making methods SCIPchgVarObjDive(), SCIPchgVarLbDive(), and SCIPchgVarUbDive() available
1535 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1543 * @note diving is allowed even if the current LP is not flushed, not solved, or not solved to optimality; be aware
1544 * that solving the (first) diving LP may take longer than expect and that the latter two cases could stem from
1545 * numerical troubles during the last LP solve; because of this, most users will want to call this method only if
1553 /** quits LP diving and resets bounds and objective values of columns to the current node's values
1555 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1570 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1586 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1603 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1620 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1637 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1651 /** changes row lhs in current dive, change will be undone after diving ends, for permanent changes use SCIPchgRowLhs()
1653 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1668 /** changes row rhs in current dive, change will be undone after diving ends, for permanent changes use SCIPchgRowRhs()
1670 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1731 * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1739 * @note be aware that the LP solve may take longer than expected if SCIPgetLPSolstat(scip) != SCIP_LPSOLSTAT_OPTIMAL,
1751 /** returns the number of the node in the current branch and bound run, where the last LP was solved in diving
1754 * @return the number of the node in the current branch and bound run, where the last LP was solved in diving
1801 /** computes two measures for dual degeneracy (dual degeneracy rate and variable-constraint ratio)
1805 * and the variable-constraint ratio, i.e., the number of unfixed variables in relation to the basis size
SCIP_RETCODE SCIPaddVarsToRowSameCoef(SCIP *scip, SCIP_ROW *row, int nvars, SCIP_VAR **vars, SCIP_Real val)
Definition: scip_lp.c:1770
SCIP_RETCODE SCIPcreateRowSepa(SCIP *scip, SCIP_ROW **row, SCIP_SEPA *sepa, const char *name, int len, SCIP_COL **cols, SCIP_Real *vals, SCIP_Real lhs, SCIP_Real rhs, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool removable)
Definition: scip_lp.c:1293
SCIP_RETCODE SCIPcreateEmptyRow(SCIP *scip, SCIP_ROW **row, const char *name, SCIP_Real lhs, SCIP_Real rhs, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool removable)
Definition: scip_lp.c:1513
SCIP_RETCODE SCIPcreateEmptyRowCons(SCIP *scip, SCIP_ROW **row, SCIP_CONS *cons, const char *name, SCIP_Real lhs, SCIP_Real rhs, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool removable)
Definition: scip_lp.c:1422
SCIP_RETCODE SCIPgetLPBInvRow(SCIP *scip, int r, SCIP_Real *coefs, int *inds, int *ninds)
Definition: scip_lp.c:714
SCIP_RETCODE SCIPcomputeLPRelIntPoint(SCIP *scip, SCIP_Bool relaxrows, SCIP_Bool inclobjcutoff, SCIP_Real timelimit, int iterlimit, SCIP_SOL **point)
Definition: scip_lp.c:1094
SCIP_RETCODE SCIPcacheRowExtensions(SCIP *scip, SCIP_ROW *row)
Definition: scip_lp.c:1635
type definitions for miscellaneous datastructures
SCIP_RETCODE SCIPcreateEmptyRowUnspec(SCIP *scip, SCIP_ROW **row, const char *name, SCIP_Real lhs, SCIP_Real rhs, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool removable)
Definition: scip_lp.c:1482
Definition: struct_scip.h:68
SCIP_RETCODE SCIPrecalcRowLPActivity(SCIP *scip, SCIP_ROW *row)
Definition: scip_lp.c:1971
SCIP_RETCODE SCIPflushRowExtensions(SCIP *scip, SCIP_ROW *row)
Definition: scip_lp.c:1658
SCIP_RETCODE SCIPcreateRowUnspec(SCIP *scip, SCIP_ROW **row, const char *name, int len, SCIP_COL **cols, SCIP_Real *vals, SCIP_Real lhs, SCIP_Real rhs, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool removable)
Definition: scip_lp.c:1327
SCIP_RETCODE SCIPcreateRowCons(SCIP *scip, SCIP_ROW **row, SCIP_CONS *cons, const char *name, int len, SCIP_COL **cols, SCIP_Real *vals, SCIP_Real lhs, SCIP_Real rhs, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool removable)
Definition: scip_lp.c:1259
SCIP_RETCODE SCIPaddVarToRow(SCIP *scip, SCIP_ROW *row, SCIP_VAR *var, SCIP_Real val)
Definition: scip_lp.c:1698
SCIP_Real SCIPgetRowPseudoFeasibility(SCIP *scip, SCIP_ROW *row)
Definition: scip_lp.c:2061
SCIP_RETCODE SCIPgetLPDualDegeneracy(SCIP *scip, SCIP_Real *degeneracy, SCIP_Real *varconsratio)
Definition: scip_lp.c:2789
Definition: struct_var.h:207
SCIP_RETCODE SCIPchgVarLbDive(SCIP *scip, SCIP_VAR *var, SCIP_Real newbound)
Definition: scip_lp.c:2416
SCIP_RETCODE SCIPgetLPBInvCol(SCIP *scip, int c, SCIP_Real *coefs, int *inds, int *ninds)
Definition: scip_lp.c:749
type definitions for return codes for SCIP methods
SCIP_RETCODE SCIPrecalcRowActivity(SCIP *scip, SCIP_ROW *row)
Definition: scip_lp.c:2079
SCIP_RETCODE SCIPcreateRow(SCIP *scip, SCIP_ROW **row, const char *name, int len, SCIP_COL **cols, SCIP_Real *vals, SCIP_Real lhs, SCIP_Real rhs, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool removable)
Definition: scip_lp.c:1361
Definition: struct_sepa.h:46
SCIP_RETCODE SCIPgetLPColsData(SCIP *scip, SCIP_COL ***cols, int *ncols)
Definition: scip_lp.c:471
SCIP_Real SCIPgetRowFeasibility(SCIP *scip, SCIP_ROW *row)
Definition: scip_lp.c:2121
SCIP_Real SCIPgetRowMaxActivity(SCIP *scip, SCIP_ROW *row)
Definition: scip_lp.c:1953
Definition: struct_lp.h:135
type definitions for LP management
Definition: struct_sol.h:73
SCIP_RETCODE SCIPchgRowLhsDive(SCIP *scip, SCIP_ROW *row, SCIP_Real newlhs)
Definition: scip_lp.c:2519
Definition: struct_misc.h:157
void SCIPmarkRowNotRemovableLocal(SCIP *scip, SCIP_ROW *row)
Definition: scip_lp.c:1865
Definition: struct_cons.h:46
SCIP_RETCODE SCIPsolveDiveLP(SCIP *scip, int itlim, SCIP_Bool *lperror, SCIP_Bool *cutoff)
Definition: scip_lp.c:2675
Definition: struct_cons.h:126
SCIP_RETCODE SCIPrecalcRowPseudoActivity(SCIP *scip, SCIP_ROW *row)
Definition: scip_lp.c:2025
type definitions for SCIP's main datastructure
SCIP_RETCODE SCIPchgCutoffboundDive(SCIP *scip, SCIP_Real newcutoffbound)
Definition: scip_lp.c:2345
SCIP_RETCODE SCIPsumLPRows(SCIP *scip, SCIP_Real *weights, SCIP_REALARRAY *sumcoef, SCIP_Real *sumlhs, SCIP_Real *sumrhs)
Definition: scip_lp.c:852
type definitions for specific LP solvers interface
type definitions for problem variables
SCIP_Real SCIPgetRowLPActivity(SCIP *scip, SCIP_ROW *row)
Definition: scip_lp.c:1990
SCIP_RETCODE SCIPgetLPBInvACol(SCIP *scip, int c, SCIP_Real *coefs, int *inds, int *ninds)
Definition: scip_lp.c:819
SCIP_Real SCIPgetRowObjParallelism(SCIP *scip, SCIP_ROW *row)
Definition: scip_lp.c:2187
SCIP_RETCODE SCIPgetLPBInvARow(SCIP *scip, int r, SCIP_Real *binvrow, SCIP_Real *coefs, int *inds, int *ninds)
Definition: scip_lp.c:785
SCIP_RETCODE SCIPchgRowRhs(SCIP *scip, SCIP_ROW *row, SCIP_Real rhs)
Definition: scip_lp.c:1607
SCIP_Real SCIPgetRowPseudoActivity(SCIP *scip, SCIP_ROW *row)
Definition: scip_lp.c:2044
SCIP_RETCODE SCIPchgVarUbDive(SCIP *scip, SCIP_VAR *var, SCIP_Real newbound)
Definition: scip_lp.c:2448
Definition: struct_lp.h:201
SCIP_RETCODE SCIPcreateEmptyRowSepa(SCIP *scip, SCIP_ROW **row, SCIP_SEPA *sepa, const char *name, SCIP_Real lhs, SCIP_Real rhs, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool removable)
Definition: scip_lp.c:1453
SCIP_RETCODE SCIPchgRowLhs(SCIP *scip, SCIP_ROW *row, SCIP_Real lhs)
Definition: scip_lp.c:1583
void SCIPmarkColNotRemovableLocal(SCIP *scip, SCIP_COL *col)
Definition: scip_lp.c:1202
SCIP_Real SCIPgetRowSolActivity(SCIP *scip, SCIP_ROW *row, SCIP_SOL *sol)
Definition: scip_lp.c:2141
type definitions for storing primal CIP solutions
SCIP_RETCODE SCIPprintLPSolutionQuality(SCIP *scip, FILE *file)
Definition: scip_lp.c:1021
SCIP_RETCODE SCIPwriteMIP(SCIP *scip, const char *filename, SCIP_Bool genericnames, SCIP_Bool origobj, SCIP_Bool lazyconss)
Definition: scip_lp.c:935
SCIP_RETCODE SCIPinterruptLP(SCIP *scip, SCIP_Bool interrupt)
Definition: scip_lp.c:874
SCIP_RETCODE SCIPchgVarObjDive(SCIP *scip, SCIP_VAR *var, SCIP_Real newobj)
Definition: scip_lp.c:2375
type definitions for separators
SCIP_Real SCIPgetRowLPFeasibility(SCIP *scip, SCIP_ROW *row)
Definition: scip_lp.c:2007
SCIP_RETCODE SCIPaddVarsToRow(SCIP *scip, SCIP_ROW *row, int nvars, SCIP_VAR **vars, SCIP_Real *vals)
Definition: scip_lp.c:1724
Definition: lpi_clp.cpp:104
SCIP_Real SCIPgetRowMinActivity(SCIP *scip, SCIP_ROW *row)
Definition: scip_lp.c:1936
SCIP_RETCODE SCIPcreateRowConshdlr(SCIP *scip, SCIP_ROW **row, SCIP_CONSHDLR *conshdlr, const char *name, int len, SCIP_COL **cols, SCIP_Real *vals, SCIP_Real lhs, SCIP_Real rhs, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool removable)
Definition: scip_lp.c:1225
SCIP_RETCODE SCIPprintRow(SCIP *scip, SCIP_ROW *row, FILE *file)
Definition: scip_lp.c:2209
SCIP_RETCODE SCIPcalcRowIntegralScalar(SCIP *scip, SCIP_ROW *row, SCIP_Real mindelta, SCIP_Real maxdelta, SCIP_Longint maxdnom, SCIP_Real maxscale, SCIP_Bool usecontvars, SCIP_Real *intscalar, SCIP_Bool *success)
Definition: scip_lp.c:1812
SCIP_Real SCIPgetRowSolFeasibility(SCIP *scip, SCIP_ROW *row, SCIP_SOL *sol)
Definition: scip_lp.c:2164
SCIP_Real SCIPgetColFarkasCoef(SCIP *scip, SCIP_COL *col)
Definition: scip_lp.c:1180
SCIP_RETCODE SCIPgetLPRowsData(SCIP *scip, SCIP_ROW ***rows, int *nrows)
Definition: scip_lp.c:570
common defines and data types used in all packages of SCIP
SCIP_RETCODE SCIPcreateEmptyRowConshdlr(SCIP *scip, SCIP_ROW **row, SCIP_CONSHDLR *conshdlr, const char *name, SCIP_Real lhs, SCIP_Real rhs, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool removable)
Definition: scip_lp.c:1391
SCIP_RETCODE SCIPchgRowRhsDive(SCIP *scip, SCIP_ROW *row, SCIP_Real newrhs)
Definition: scip_lp.c:2552
Definition: objbenders.h:43
SCIP_RETCODE SCIPmakeRowIntegral(SCIP *scip, SCIP_ROW *row, SCIP_Real mindelta, SCIP_Real maxdelta, SCIP_Longint maxdnom, SCIP_Real maxscale, SCIP_Bool usecontvars, SCIP_Bool *success)
Definition: scip_lp.c:1841
type definitions for constraints and constraint handlers