Scippy

SCIP

Solving Constraint Integer Programs

nlpioracle.h
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3 /* This file is part of the program and library */
4 /* SCIP --- Solving Constraint Integer Programs */
5 /* */
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24 
25 /**@file nlpioracle.h
26  * @ingroup PUBLICCOREAPI
27  * @brief methods to store an NLP and request function, gradient, and Hessian values
28  * @author Stefan Vigerske
29  *
30  * A common part of many NLPIs that takes care of the problem storage and function, gradient, and Hessian evaluation.
31  */
32 
33 #ifndef __SCIP_NLPIORACLE_H__
34 #define __SCIP_NLPIORACLE_H__
35 
36 #include "scip/type_message.h"
38 
39 /**@defgroup NLPIOracle NLPI Oracle
40  * @ingroup DataStructures
41  * @brief NLP representation used by various NLP solver interface implementations
42  *
43  *@{
44  */
45 
46 
47 #ifdef __cplusplus
48 extern "C" {
49 #endif
50 
51 typedef struct SCIP_NlpiOracle SCIP_NLPIORACLE; /**< NLPI oracle data structure */
52 
53 /** creates an NLPIORACLE data structure */
54 SCIP_EXPORT
56  SCIP* scip, /**< SCIP data structure */
57  SCIP_NLPIORACLE** oracle /**< pointer to store NLPIORACLE data structure */
58  );
59 
60 /** frees an NLPIORACLE data structure */
61 SCIP_EXPORT
63  SCIP* scip, /**< SCIP data structure */
64  SCIP_NLPIORACLE** oracle /**< pointer to NLPIORACLE data structure */
65  );
66 
67 /** sets the problem name (used for printing) */
68 SCIP_EXPORT
70  SCIP* scip, /**< SCIP data structure */
71  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
72  const char* name /**< name of problem */
73  );
74 
75 /** gets the problem name, or NULL if none set */
76 SCIP_EXPORT
78  SCIP_NLPIORACLE* oracle /**< pointer to NLPIORACLE data structure */
79  );
80 
81 /** adds variables */
82 SCIP_EXPORT
84  SCIP* scip, /**< SCIP data structure */
85  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
86  int nvars, /**< number of variables to add */
87  const SCIP_Real* lbs, /**< array with lower bounds of new variables, or NULL if all -infinity */
88  const SCIP_Real* ubs, /**< array with upper bounds of new variables, or NULL if all +infinity */
89  const char** varnames /**< array with names of new variables, or NULL if no names should be stored */
90  );
91 
92 /** adds constraints
93  *
94  * linear coefficients: row(=constraint) oriented matrix;
95  * quadratic coefficients: row oriented matrix for each constraint
96  */
97 SCIP_EXPORT
99  SCIP* scip, /**< SCIP data structure */
100  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
101  int nconss, /**< number of constraints to add */
102  const SCIP_Real* lhss, /**< array with left-hand sides of constraints, or NULL if all -infinity */
103  const SCIP_Real* rhss, /**< array with right-hand sides of constraints, or NULL if all +infinity */
104  const int* nlininds, /**< number of linear coefficients for each constraint, may be NULL in case of no linear part */
105  int* const* lininds, /**< indices of variables for linear coefficients for each constraint, may be NULL in case of no linear part */
106  SCIP_Real* const* linvals, /**< values of linear coefficient for each constraint, may be NULL in case of no linear part */
107  SCIP_EXPR** exprs, /**< NULL if no nonlinear parts, otherwise exprs[.] gives nonlinear part,
108  * or NULL if no nonlinear part in this constraint */
109  const char** consnames /**< names of new constraints, or NULL if no names should be stored */
110  );
111 
112 /** sets or overwrites objective, a minimization problem is expected
113  *
114  * May change sparsity pattern.
115  */
116 SCIP_EXPORT
118  SCIP* scip, /**< SCIP data structure */
119  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
120  const SCIP_Real constant, /**< constant part of objective */
121  int nlin, /**< number of linear variable coefficients */
122  const int* lininds, /**< indices of linear variables, or NULL if no linear part */
123  const SCIP_Real* linvals, /**< coefficients of linear variables, or NULL if no linear part */
124  SCIP_EXPR* expr /**< expression of nonlinear part, or NULL if no nonlinear part */
125  );
126 
127 /** change variable bounds */
128 SCIP_EXPORT
130  SCIP* scip, /**< SCIP data structure */
131  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
132  int nvars, /**< number of variables to change bounds */
133  const int* indices, /**< array with indices of variables to change bounds */
134  const SCIP_Real* lbs, /**< array with new lower bounds, or NULL if all should be -infty */
135  const SCIP_Real* ubs /**< array with new upper bounds, or NULL if all should be +infty */
136  );
137 
138 /** change constraint sides */
139 SCIP_EXPORT
141  SCIP* scip, /**< SCIP data structure */
142  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
143  int nconss, /**< number of constraints to change sides */
144  const int* indices, /**< array with indices of constraints to change sides */
145  const SCIP_Real* lhss, /**< array with new left-hand sides, or NULL if all should be -infty */
146  const SCIP_Real* rhss /**< array with new right-hand sides, or NULL if all should be +infty */
147  );
148 
149 /** deletes a set of variables */
150 SCIP_EXPORT
152  SCIP* scip, /**< SCIP data structure */
153  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
154  int* delstats /**< array with deletion status of vars in input (1 if var should be deleted, 0 if not);
155  * new position of var in output (-1 if var was deleted) */
156  );
157 
158 /** deletes a set of constraints */
159 SCIP_EXPORT
161  SCIP* scip, /**< SCIP data structure */
162  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
163  int* delstats /**< array with deletion status of rows in input (1 if row should be deleted, 0 if not);
164  * new position of row in output (-1 if row was deleted) */
165  );
166 
167 /** changes (or adds) linear coefficients in one constraint or objective */
168 SCIP_EXPORT
170  SCIP* scip, /**< SCIP data structure */
171  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
172  int considx, /**< index of constraint where linear coefficients should be changed, or -1 for objective */
173  int nentries, /**< number of coefficients to change */
174  const int* varidxs, /**< array with indices of variables which coefficients should be changed */
175  const SCIP_Real* newcoefs /**< array with new coefficients of variables */
176  );
177 
178 /** replaces expression of one constraint or objective */
179 SCIP_EXPORT
181  SCIP* scip, /**< SCIP data structure */
182  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
183  int considx, /**< index of constraint where expression should be changed, or -1 for objective */
184  SCIP_EXPR* expr /**< new expression, or NULL */
185  );
186 
187 /** changes the constant value in the objective function
188  */
189 SCIP_EXPORT
191  SCIP* scip, /**< SCIP data structure */
192  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
193  SCIP_Real objconstant /**< new value for objective constant */
194  );
195 
196 /** gives the current number of variables */
197 SCIP_EXPORT
199  SCIP_NLPIORACLE* oracle /**< pointer to NLPIORACLE data structure */
200  );
201 
202 /** gives the current number of constraints */
203 SCIP_EXPORT
205  SCIP_NLPIORACLE* oracle /**< pointer to NLPIORACLE data structure */
206  );
207 
208 /** gives the variables lower bounds */
209 SCIP_EXPORT
211  SCIP_NLPIORACLE* oracle /**< pointer to NLPIORACLE data structure */
212  );
213 
214 /** gives the variables upper bounds */
215 SCIP_EXPORT
217  SCIP_NLPIORACLE* oracle /**< pointer to NLPIORACLE data structure */
218  );
219 
220 /** gives the variables names, or NULL if not set */
221 SCIP_EXPORT
223  SCIP_NLPIORACLE* oracle /**< pointer to NLPIORACLE data structure */
224  );
225 
226 /** indicates whether variable appears nonlinear in any objective or constraint */
227 SCIP_EXPORT
229  SCIP* scip, /**< SCIP data structure */
230  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
231  int varidx /**< the variable to check */
232  );
233 
234 /** returns number of linear and nonlinear appearances of variables in objective and constraints */
235 SCIP_EXPORT
237  SCIP* scip, /**< SCIP data structure */
238  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
239  const int** lincounts, /**< buffer to return pointer to array of counts of linear appearances */
240  const int** nlcounts /**< buffer to return pointer to array of counts of nonlinear appearances */
241  );
242 
243 /** gives constant term of objective */
244 SCIP_EXPORT
246  SCIP_NLPIORACLE* oracle /**< pointer to NLPIORACLE data structure */
247  );
248 
249 /** gives left-hand side of a constraint */
250 SCIP_EXPORT
252  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
253  int considx /**< constraint index */
254  );
255 
256 /** gives right-hand side of a constraint */
257 SCIP_EXPORT
259  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
260  int considx /**< constraint index */
261  );
262 
263 /** gives name of a constraint, may be NULL */
264 SCIP_EXPORT
266  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
267  int considx /**< constraint index */
268  );
269 
270 /** indicates whether constraint is nonlinear */
271 SCIP_EXPORT
273  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
274  int considx /**< index of constraint for which nonlinearity status is returned, or -1 for objective */
275  );
276 
277 /** gives the evaluation capabilities that are shared among all expressions in the problem */
278 SCIP_EXPORT
280  SCIP* scip, /**< SCIP data structure */
281  SCIP_NLPIORACLE* oracle /**< pointer to NLPIORACLE data structure */
282  );
283 
284 /** evaluates the objective function in a given point */
285 SCIP_EXPORT
287  SCIP* scip, /**< SCIP data structure */
288  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
289  const SCIP_Real* x, /**< point where to evaluate */
290  SCIP_Real* objval /**< pointer to store objective value */
291  );
292 
293 /** evaluates one constraint function in a given point */
294 SCIP_EXPORT
296  SCIP* scip, /**< SCIP data structure */
297  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
298  int considx, /**< index of constraint to evaluate */
299  const SCIP_Real* x, /**< point where to evaluate */
300  SCIP_Real* conval /**< pointer to store constraint value */
301  );
302 
303 /** evaluates all constraint functions in a given point */
304 SCIP_EXPORT
306  SCIP* scip, /**< SCIP data structure */
307  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
308  const SCIP_Real* x, /**< point where to evaluate */
309  SCIP_Real* convals /**< pointer to store constraint values */
310  );
311 
312 /** computes the objective gradient in a given point
313  *
314  * @return SCIP_INVALIDDATA, if the function or its gradient could not be evaluated (domain error, etc.)
315  */
316 SCIP_EXPORT
318  SCIP* scip, /**< SCIP data structure */
319  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
320  const SCIP_Real* x, /**< point where to evaluate */
321  SCIP_Bool isnewx, /**< has the point x changed since the last call to some evaluation function? */
322  SCIP_Real* objval, /**< pointer to buffer objective value */
323  SCIP_Real* objgrad /**< pointer to buffer (dense) objective gradient */
324  );
325 
326 /** computes a constraints gradient in a given point
327  *
328  * @return SCIP_INVALIDDATA, if the function or its gradient could not be evaluated (domain error, etc.)
329  */
330 SCIP_EXPORT
332  SCIP* scip, /**< SCIP data structure */
333  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
334  const int considx, /**< index of constraint to compute gradient for */
335  const SCIP_Real* x, /**< point where to evaluate */
336  SCIP_Bool isnewx, /**< has the point x changed since the last call to some evaluation function? */
337  SCIP_Real* conval, /**< pointer to store constraint value */
338  SCIP_Real* congrad /**< pointer to store (dense) constraint gradient */
339  );
340 
341 /** gets sparsity pattern (rowwise) of Jacobian matrix
342  *
343  * Note that internal data is returned in *offset and *col, thus the user does not need to allocate memory there.
344  * Adding or deleting constraints destroys the sparsity structure and make another call to this function necessary.
345  */
346 SCIP_EXPORT
348  SCIP* scip, /**< SCIP data structure */
349  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
350  const int** offset, /**< pointer to store pointer that stores the offsets to each rows sparsity pattern in col, can be NULL */
351  const int** col /**< pointer to store pointer that stores the indices of variables that appear in each row,
352  * offsets[nconss] gives length of col, can be NULL */
353  );
354 
355 /** evaluates the Jacobian matrix in a given point
356  *
357  * The values in the Jacobian matrix are returned in the same order as specified by the offset and col arrays obtained by SCIPnlpiOracleGetJacobianSparsity().
358  * The user need to call SCIPnlpiOracleGetJacobianSparsity() at least ones before using this function.
359  *
360  * @return SCIP_INVALIDDATA, if the Jacobian could not be evaluated (domain error, etc.)
361  */
362 SCIP_EXPORT
364  SCIP* scip, /**< SCIP data structure */
365  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
366  const SCIP_Real* x, /**< point where to evaluate */
367  SCIP_Bool isnewx, /**< has the point x changed since the last call to some evaluation function? */
368  SCIP_Real* convals, /**< pointer to store constraint values, can be NULL */
369  SCIP_Real* jacobi /**< pointer to store sparse jacobian values */
370  );
371 
372 /** gets sparsity pattern of the Hessian matrix of the Lagrangian
373  *
374  * Note that internal data is returned in *offset and *col, thus the user must not to allocate memory there.
375  * Adding or deleting variables, objective, or constraints may destroy the sparsity structure and make another call to this function necessary.
376  * Only elements of the lower left triangle and the diagonal are counted.
377  */
378 SCIP_EXPORT
380  SCIP* scip, /**< SCIP data structure */
381  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
382  const int** offset, /**< pointer to store pointer that stores the offsets to each rows sparsity pattern in col, can be NULL */
383  const int** col /**< pointer to store pointer that stores the indices of variables that appear in each row,
384  * offsets[nconss] gives length of col, can be NULL */
385  );
386 
387 /** evaluates the Hessian matrix of the Lagrangian in a given point
388  *
389  * The values in the Hessian matrix are returned in the same order as specified by the offset and col arrays obtained by SCIPnlpiOracleGetHessianLagSparsity().
390  * The user must call SCIPnlpiOracleGetHessianLagSparsity() at least ones before using this function.
391  * Only elements of the lower left triangle and the diagonal are computed.
392  *
393  * @return SCIP_INVALIDDATA, if the Hessian could not be evaluated (domain error, etc.)
394  */
395 SCIP_EXPORT
397  SCIP* scip, /**< SCIP data structure */
398  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
399  const SCIP_Real* x, /**< point where to evaluate */
400  SCIP_Bool isnewx_obj, /**< has the point x changed since the last call to an objective evaluation function? */
401  SCIP_Bool isnewx_cons, /**< has the point x changed since the last call to the constraint evaluation function? */
402  SCIP_Real objfactor, /**< weight for objective function */
403  const SCIP_Real* lambdas, /**< array with weights (Lagrangian multipliers) for the constraints */
404  SCIP_Real* hessian /**< pointer to store sparse hessian values */
405  );
406 
407 /** resets clock that measures evaluation time */
408 SCIP_EXPORT
410  SCIP* scip, /**< SCIP data structure */
411  SCIP_NLPIORACLE* oracle /**< pointer to NLPIORACLE data structure */
412  );
413 
414 /** gives time spend in evaluation since last reset of clock
415  *
416  * Gives 0 if the eval clock is disabled.
417  */
418 SCIP_EXPORT
420  SCIP* scip, /**< SCIP data structure */
421  SCIP_NLPIORACLE* oracle /**< pointer to NLPIORACLE data structure */
422  );
423 
424 /** prints the problem to a file. */
425 SCIP_EXPORT
427  SCIP* scip, /**< SCIP data structure */
428  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
429  FILE* file /**< file to print to, or NULL for standard output */
430  );
431 
432 /** prints the problem to a file in GAMS format
433  *
434  * If there are variable (equation, resp.) names with more than 9 characters, then variable (equation, resp.) names are prefixed with an unique identifier.
435  * This is to make it easier to identify variables solution output in the listing file.
436  * Names with more than 64 characters are shorten to 64 letters due to GAMS limits.
437  */
438 SCIP_EXPORT
440  SCIP* scip, /**< SCIP data structure */
441  SCIP_NLPIORACLE* oracle, /**< pointer to NLPIORACLE data structure */
442  SCIP_Real* initval, /**< starting point values for variables or NULL */
443  FILE* file /**< file to print to, or NULL for standard output */
444  );
445 
446 /** @} */
447 
448 #ifdef __cplusplus
449 }
450 #endif
451 
452 #endif
SCIP_RETCODE SCIPnlpiOracleEvalObjectiveGradient(SCIP *scip, SCIP_NLPIORACLE *oracle, const SCIP_Real *x, SCIP_Bool isnewx, SCIP_Real *objval, SCIP_Real *objgrad)
Definition: nlpioracle.c:1968
SCIP_RETCODE SCIPnlpiOracleChgLinearCoefs(SCIP *scip, SCIP_NLPIORACLE *oracle, int considx, int nentries, const int *varidxs, const SCIP_Real *newcoefs)
Definition: nlpioracle.c:1557
SCIP_RETCODE SCIPnlpiOracleEvalConstraintValue(SCIP *scip, SCIP_NLPIORACLE *oracle, int considx, const SCIP_Real *x, SCIP_Real *conval)
Definition: nlpioracle.c:1912
type definitions for expression interpreter
SCIP_RETCODE SCIPnlpiOracleEvalHessianLag(SCIP *scip, SCIP_NLPIORACLE *oracle, const SCIP_Real *x, SCIP_Bool isnewx_obj, SCIP_Bool isnewx_cons, SCIP_Real objfactor, const SCIP_Real *lambdas, SCIP_Real *hessian)
Definition: nlpioracle.c:2380
SCIP_RETCODE SCIPnlpiOracleAddConstraints(SCIP *scip, SCIP_NLPIORACLE *oracle, int nconss, const SCIP_Real *lhss, const SCIP_Real *rhss, const int *nlininds, int *const *lininds, SCIP_Real *const *linvals, SCIP_EXPR **exprs, const char **consnames)
Definition: nlpioracle.c:1167
enum SCIP_Retcode SCIP_RETCODE
Definition: type_retcode.h:63
SCIP_RETCODE SCIPnlpiOracleSetProblemName(SCIP *scip, SCIP_NLPIORACLE *oracle, const char *name)
Definition: nlpioracle.c:1045
SCIP_Real SCIPnlpiOracleGetEvalTime(SCIP *scip, SCIP_NLPIORACLE *oracle)
Definition: nlpioracle.c:2443
SCIP_RETCODE SCIPnlpiOracleSetObjective(SCIP *scip, SCIP_NLPIORACLE *oracle, const SCIP_Real constant, int nlin, const int *lininds, const SCIP_Real *linvals, SCIP_EXPR *expr)
Definition: nlpioracle.c:1228
unsigned int SCIP_EXPRINTCAPABILITY
SCIP_RETCODE SCIPnlpiOraclePrintProblem(SCIP *scip, SCIP_NLPIORACLE *oracle, FILE *file)
Definition: nlpioracle.c:2454
SCIP_Real SCIPnlpiOracleGetConstraintRhs(SCIP_NLPIORACLE *oracle, int considx)
Definition: nlpioracle.c:1821
SCIP_VAR ** x
Definition: circlepacking.c:63
int SCIPnlpiOracleGetNConstraints(SCIP_NLPIORACLE *oracle)
Definition: nlpioracle.c:1726
int SCIPnlpiOracleGetNVars(SCIP_NLPIORACLE *oracle)
Definition: nlpioracle.c:1716
SCIP_RETCODE SCIPnlpiOracleResetEvalTime(SCIP *scip, SCIP_NLPIORACLE *oracle)
Definition: nlpioracle.c:2427
char * SCIPnlpiOracleGetConstraintName(SCIP_NLPIORACLE *oracle, int considx)
Definition: nlpioracle.c:1834
SCIP_RETCODE SCIPnlpiOracleChgVarBounds(SCIP *scip, SCIP_NLPIORACLE *oracle, int nvars, const int *indices, const SCIP_Real *lbs, const SCIP_Real *ubs)
Definition: nlpioracle.c:1257
SCIP_Real SCIPnlpiOracleGetObjectiveConstant(SCIP_NLPIORACLE *oracle)
Definition: nlpioracle.c:1797
SCIP_RETCODE SCIPnlpiOracleGetJacobianSparsity(SCIP *scip, SCIP_NLPIORACLE *oracle, const int **offset, const int **col)
Definition: nlpioracle.c:2027
SCIP_RETCODE SCIPnlpiOracleAddVars(SCIP *scip, SCIP_NLPIORACLE *oracle, int nvars, const SCIP_Real *lbs, const SCIP_Real *ubs, const char **varnames)
Definition: nlpioracle.c:1081
SCIP_RETCODE SCIPnlpiOracleChgExpr(SCIP *scip, SCIP_NLPIORACLE *oracle, int considx, SCIP_EXPR *expr)
Definition: nlpioracle.c:1653
SCIP_Real SCIPnlpiOracleGetConstraintLhs(SCIP_NLPIORACLE *oracle, int considx)
Definition: nlpioracle.c:1808
SCIP_RETCODE SCIPnlpiOracleEvalConstraintGradient(SCIP *scip, SCIP_NLPIORACLE *oracle, const int considx, const SCIP_Real *x, SCIP_Bool isnewx, SCIP_Real *conval, SCIP_Real *congrad)
Definition: nlpioracle.c:1997
SCIP_RETCODE SCIPnlpiOracleEvalJacobian(SCIP *scip, SCIP_NLPIORACLE *oracle, const SCIP_Real *x, SCIP_Bool isnewx, SCIP_Real *convals, SCIP_Real *jacobi)
Definition: nlpioracle.c:2159
SCIP_RETCODE SCIPnlpiOracleDelVarSet(SCIP *scip, SCIP_NLPIORACLE *oracle, int *delstats)
Definition: nlpioracle.c:1329
char ** varnames
Definition: nlpioracle.c:71
#define SCIP_Bool
Definition: def.h:93
const char * SCIPnlpiOracleGetProblemName(SCIP_NLPIORACLE *oracle)
Definition: nlpioracle.c:1069
SCIP_RETCODE SCIPnlpiOracleCreate(SCIP *scip, SCIP_NLPIORACLE **oracle)
Definition: nlpioracle.c:983
const SCIP_Real * SCIPnlpiOracleGetVarLbs(SCIP_NLPIORACLE *oracle)
Definition: nlpioracle.c:1736
SCIP_Bool SCIPnlpiOracleIsConstraintNonlinear(SCIP_NLPIORACLE *oracle, int considx)
Definition: nlpioracle.c:1847
const SCIP_Real * SCIPnlpiOracleGetVarUbs(SCIP_NLPIORACLE *oracle)
Definition: nlpioracle.c:1746
SCIP_RETCODE SCIPnlpiOracleFree(SCIP *scip, SCIP_NLPIORACLE **oracle)
Definition: nlpioracle.c:1013
SCIP_Bool SCIPnlpiOracleIsVarNonlinear(SCIP *scip, SCIP_NLPIORACLE *oracle, int varidx)
Definition: nlpioracle.c:1766
SCIP_RETCODE SCIPnlpiOracleEvalObjectiveValue(SCIP *scip, SCIP_NLPIORACLE *oracle, const SCIP_Real *x, SCIP_Real *objval)
Definition: nlpioracle.c:1887
SCIP_RETCODE SCIPnlpiOraclePrintProblemGams(SCIP *scip, SCIP_NLPIORACLE *oracle, SCIP_Real *initval, FILE *file)
Definition: nlpioracle.c:2522
SCIP_RETCODE SCIPnlpiOracleEvalConstraintValues(SCIP *scip, SCIP_NLPIORACLE *oracle, const SCIP_Real *x, SCIP_Real *convals)
Definition: nlpioracle.c:1936
#define SCIP_Real
Definition: def.h:186
SCIP_RETCODE SCIPnlpiOracleGetHessianLagSparsity(SCIP *scip, SCIP_NLPIORACLE *oracle, const int **offset, const int **col)
Definition: nlpioracle.c:2286
SCIP_EXPRINTCAPABILITY SCIPnlpiOracleGetEvalCapability(SCIP *scip, SCIP_NLPIORACLE *oracle)
Definition: nlpioracle.c:1864
type definitions for message output methods
char ** SCIPnlpiOracleGetVarNames(SCIP_NLPIORACLE *oracle)
Definition: nlpioracle.c:1756
SCIP_RETCODE SCIPnlpiOracleChgConsSides(SCIP *scip, SCIP_NLPIORACLE *oracle, int nconss, const int *indices, const SCIP_Real *lhss, const SCIP_Real *rhss)
Definition: nlpioracle.c:1294
SCIP_RETCODE SCIPnlpiOracleDelConsSet(SCIP *scip, SCIP_NLPIORACLE *oracle, int *delstats)
Definition: nlpioracle.c:1471
void SCIPnlpiOracleGetVarCounts(SCIP *scip, SCIP_NLPIORACLE *oracle, const int **lincounts, const int **nlcounts)
Definition: nlpioracle.c:1781
SCIP_RETCODE SCIPnlpiOracleChgObjConstant(SCIP *scip, SCIP_NLPIORACLE *oracle, SCIP_Real objconstant)
Definition: nlpioracle.c:1699