This file is indexed.

/usr/include/coin/IpStdCInterface.h is in coinor-libipopt-dev 3.11.9-2.1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
/*************************************************************************
   Copyright (C) 2004, 2010 International Business Machines and others.
   All Rights Reserved.
   This code is published under the Eclipse Public License.
 
   $Id: IpStdCInterface.h 2082 2012-02-16 03:00:34Z andreasw $
 
   Authors:  Carl Laird, Andreas Waechter     IBM    2004-09-02
 *************************************************************************/

#ifndef __IPSTDCINTERFACE_H__
#define __IPSTDCINTERFACE_H__

#ifndef IPOPT_EXPORT
#ifdef _MSC_VER
#ifdef IPOPT_DLL
#define IPOPT_EXPORT(type) __declspec(dllexport) type __cdecl
#else
#define IPOPT_EXPORT(type) type __cdecl
#endif
#else 
#define IPOPT_EXPORT(type) type
#endif
#endif

#ifdef __cplusplus
extern "C"
{
#endif

  /** Type for all number.  We need to make sure that this is
      identical with what is defined in Common/IpTypes.hpp */
  typedef double Number;

  /** Type for all incides.  We need to make sure that this is
      identical with what is defined in Common/IpTypes.hpp */
  typedef int Index;

  /** Type for all integers.  We need to make sure that this is
      identical with what is defined in Common/IpTypes.hpp */
  typedef int Int;

  /* This includes the SolverReturn enum type */
#include "IpReturnCodes.h"

  /** Structure collecting all information about the problem
   *  definition and solve statistics etc.  This is defined in the
   *  source file. */
  struct IpoptProblemInfo;

  /** Pointer to a Ipopt Problem. */
  typedef struct IpoptProblemInfo* IpoptProblem;

  /** define a boolean type for C */
  typedef int Bool;
#ifndef TRUE
# define TRUE (1)
#endif
#ifndef FALSE
# define FALSE (0)
#endif

  /** A pointer for anything that is to be passed between the called
   *  and individual callback function */
  typedef void * UserDataPtr;

  /** Type defining the callback function for evaluating the value of
   *  the objective function.  Return value should be set to false if
   *  there was a problem doing the evaluation. */
  typedef Bool (*Eval_F_CB)(Index n, Number* x, Bool new_x,
                            Number* obj_value, UserDataPtr user_data);

  /** Type defining the callback function for evaluating the gradient of
   *  the objective function.  Return value should be set to false if
   *  there was a problem doing the evaluation. */
  typedef Bool (*Eval_Grad_F_CB)(Index n, Number* x, Bool new_x,
                                 Number* grad_f, UserDataPtr user_data);

  /** Type defining the callback function for evaluating the value of
   *  the constraint functions.  Return value should be set to false if
   *  there was a problem doing the evaluation. */
  typedef Bool (*Eval_G_CB)(Index n, Number* x, Bool new_x,
                            Index m, Number* g, UserDataPtr user_data);

  /** Type defining the callback function for evaluating the Jacobian of
   *  the constrant functions.  Return value should be set to false if
   *  there was a problem doing the evaluation. */
  typedef Bool (*Eval_Jac_G_CB)(Index n, Number *x, Bool new_x,
                                Index m, Index nele_jac,
                                Index *iRow, Index *jCol, Number *values,
                                UserDataPtr user_data);

  /** Type defining the callback function for evaluating the Hessian of
   *  the Lagrangian function.  Return value should be set to false if
   *  there was a problem doing the evaluation. */
  typedef Bool (*Eval_H_CB)(Index n, Number *x, Bool new_x, Number obj_factor,
                            Index m, Number *lambda, Bool new_lambda,
                            Index nele_hess, Index *iRow, Index *jCol,
                            Number *values, UserDataPtr user_data);

  /** Type defining the callback function for giving intermediate
   *  execution control to the user.  If set, it is called once per
   *  iteration, providing the user with some information on the state
   *  of the optimization.  This can be used to print some
   *  user-defined output.  It also gives the user a way to terminate
   *  the optimization prematurely.  If this method returns false,
   *  Ipopt will terminate the optimization. */
  typedef Bool (*Intermediate_CB)(Index alg_mod, /* 0 is regular, 1 is resto */
				  Index iter_count, Number obj_value,
				  Number inf_pr, Number inf_du,
				  Number mu, Number d_norm,
				  Number regularization_size,
				  Number alpha_du, Number alpha_pr,
				  Index ls_trials, UserDataPtr user_data);

  /** Function for creating a new Ipopt Problem object.  This function
   *  returns an object that can be passed to the IpoptSolve call.  It
   *  contains the basic definition of the optimization problem, such
   *  as number of variables and constraints, bounds on variables and
   *  constraints, information about the derivatives, and the callback
   *  function for the computation of the optimization problem
   *  functions and derivatives.  During this call, the options file
   *  PARAMS.DAT is read as well.
   *
   *  If NULL is returned, there was a problem with one of the inputs
   *  or reading the options file. */
  IPOPT_EXPORT(IpoptProblem) CreateIpoptProblem(
      Index n             /** Number of optimization variables */
    , Number* x_L         /** Lower bounds on variables. This array of
                              size n is copied internally, so that the
                              caller can change the incoming data after
                              return without that IpoptProblem is
                              modified.  Any value less or equal than
                              the number specified by option
                              'nlp_lower_bound_inf' is interpreted to
                              be minus infinity. */
    , Number* x_U         /** Upper bounds on variables. This array of
                              size n is copied internally, so that the
                              caller can change the incoming data after
                              return without that IpoptProblem is
                              modified.  Any value greater or equal
                              than the number specified by option
                              'nlp_upper_bound_inf' is interpreted to
                              be plus infinity. */
    , Index m             /** Number of constraints. */
    , Number* g_L         /** Lower bounds on constraints. This array of
                              size m is copied internally, so that the
                              caller can change the incoming data after
                              return without that IpoptProblem is
                              modified.  Any value less or equal than
                              the number specified by option
                              'nlp_lower_bound_inf' is interpreted to
                              be minus infinity. */
    , Number* g_U         /** Upper bounds on constraints. This array of
                              size m is copied internally, so that the
                              caller can change the incoming data after
                              return without that IpoptProblem is
                              modified.  Any value greater or equal
                              than the number specified by option
                              'nlp_upper_bound_inf' is interpreted to
                              be plus infinity. */
    , Index nele_jac      /** Number of non-zero elements in constraint
                              Jacobian. */
    , Index nele_hess     /** Number of non-zero elements in Hessian of
                              Lagrangian. */
    , Index index_style   /** indexing style for iRow & jCol,
				 0 for C style, 1 for Fortran style */
    , Eval_F_CB eval_f    /** Callback function for evaluating
                              objective function */
    , Eval_G_CB eval_g    /** Callback function for evaluating
                              constraint functions */
    , Eval_Grad_F_CB eval_grad_f
                          /** Callback function for evaluating gradient
                              of objective function */
    , Eval_Jac_G_CB eval_jac_g
                          /** Callback function for evaluating Jacobian
                              of constraint functions */
    , Eval_H_CB eval_h    /** Callback function for evaluating Hessian
                              of Lagrangian function */
  );

  /** Method for freeing a previously created IpoptProblem.  After
      freeing an IpoptProblem, it cannot be used anymore. */
  IPOPT_EXPORT(void) FreeIpoptProblem(IpoptProblem ipopt_problem);


  /** Function for adding a string option.  Returns FALSE the option
   *  could not be set (e.g., if keyword is unknown) */
  IPOPT_EXPORT(Bool) AddIpoptStrOption(IpoptProblem ipopt_problem, char* keyword, char* val);

  /** Function for adding a Number option.  Returns FALSE the option
   *  could not be set (e.g., if keyword is unknown) */
  IPOPT_EXPORT(Bool) AddIpoptNumOption(IpoptProblem ipopt_problem, char* keyword, Number val);

  /** Function for adding an Int option.  Returns FALSE the option
   *  could not be set (e.g., if keyword is unknown) */
  IPOPT_EXPORT(Bool) AddIpoptIntOption(IpoptProblem ipopt_problem, char* keyword, Int val);

  /** Function for opening an output file for a given name with given
   *  printlevel.  Returns false, if there was a problem opening the
   *  file. */
  IPOPT_EXPORT(Bool) OpenIpoptOutputFile(IpoptProblem ipopt_problem, char* file_name,
                           Int print_level);

  /** Optional function for setting scaling parameter for the NLP.
   *  This corresponds to the get_scaling_parameters method in TNLP.
   *  If the pointers x_scaling or g_scaling are NULL, then no scaling
   *  for x resp. g is done. */
  IPOPT_EXPORT(Bool) SetIpoptProblemScaling(IpoptProblem ipopt_problem,
			      Number obj_scaling,
			      Number* x_scaling,
			      Number* g_scaling);

  /** Setting a callback function for the "intermediate callback"
   *  method in the TNLP.  This gives control back to the user once
   *  per iteration.  If set, it provides the user with some
   *  information on the state of the optimization.  This can be used
   *  to print some user-defined output.  It also gives the user a way
   *  to terminate the optimization prematurely.  If the callback
   *  method returns false, Ipopt will terminate the optimization.
   *  Calling this set method to set the CB pointer to NULL disables
   *  the intermediate callback functionality. */
  IPOPT_EXPORT(Bool) SetIntermediateCallback(IpoptProblem ipopt_problem,
					     Intermediate_CB intermediate_cb);

  /** Function calling the Ipopt optimization algorithm for a problem
      previously defined with CreateIpoptProblem.  The return
      specified outcome of the optimization procedure (e.g., success,
      failure etc).
   */
  IPOPT_EXPORT(enum ApplicationReturnStatus) IpoptSolve(
      IpoptProblem ipopt_problem
                         /** Problem that is to be optimized.  Ipopt
                             will use the options previously specified with
                             AddIpoptOption (etc) for this problem. */
    , Number* x          /** Input:  Starting point
                             Output: Optimal solution */
    , Number* g          /** Values of constraint at final point
                             (output only - ignored if set to NULL) */
    , Number* obj_val    /** Final value of objective function
                             (output only - ignored if set to NULL) */
    , Number* mult_g     /** Input: Initial values for the constraint
                                    multipliers (only if warm start option
                                    is chosen)
                             Output: Final multipliers for constraints
                                     (ignored if set to NULL) */
    , Number* mult_x_L   /** Input: Initial values for the multipliers for
                                    lower variable bounds (only if warm start
                                    option is chosen)
                             Output: Final multipliers for lower variable
                                     bounds (ignored if set to NULL) */
    , Number* mult_x_U   /** Input: Initial values for the multipliers for
                                    upper variable bounds (only if warm start
                                    option is chosen)
                             Output: Final multipliers for upper variable
                                     bounds (ignored if set to NULL) */
    , UserDataPtr user_data
                         /** Pointer to user data.  This will be
                             passed unmodified to the callback
                             functions. */
  );

  /**
  void IpoptStatisticsCounts;

  void IpoptStatisticsInfeasibilities; */
#ifdef __cplusplus
} /* extern "C" { */
#endif

#endif