- Main Page
- Modules
- Namespaces
- Classes
- Files
- Related Pages

- File List
- File Members

# /home/coin/SVN-release/Blis-0.91.0/CoinUtils/src/CoinLpIO.hpp

Go to the documentation of this file.

    00001 // Last edit: 11/5/08
    00002 //
    00003 // Name:     CoinLpIO.hpp; Support for Lp files
    00004 // Author:   Francois Margot
    00005 //           Tepper School of Business
    00006 //           Carnegie Mellon University, Pittsburgh, PA 15213
    00007 //           email: fmargot@andrew.cmu.edu
    00008 // Date:     12/28/03
    00009 //-----------------------------------------------------------------------------
    00010 // Copyright (C) 2003, Francois Margot, International Business Machines
    00011 // Corporation and others.  All Rights Reserved.
    00012
    00013 #include <cstdio>
    00014
    00015 class CoinPackedMatrix;
    00016
    00017 typedef int COINColumnIndex;
    00018
    00090 class CoinLpIO {
    00091
    00092 public:
    00093
    00096
    00097   CoinLpIO();
    00098
    00100   ~CoinLpIO();
    00101
    00107   void freePreviousNames(const int section);
    00108
    00110   void freeAll();
    00112
    00115     inline void
    00116     convertBoundToSense(const double lower, const double upper,
    00117                         char& sense, double& right, double& range) const;
    00118
    00121
    00123   const char * getProblemName() const;
    00124
    00126   void setProblemName(const char *name);
    00127
    00129   int getNumCols() const;
    00130
    00132   int getNumRows() const;
    00133
    00135   int getNumElements() const;
    00136
    00138   const double * getColLower() const;
    00139
    00141   const double * getColUpper() const;
    00142
    00144   const double * getRowLower() const;
    00145
    00147   const double * getRowUpper() const;
    00157   const char * getRowSense() const;
    00158
    00170   const double * getRightHandSide() const;
    00171
    00185   const double * getRowRange() const;
    00186
    00188   const double * getObjCoefficients() const;
    00189
    00191   const CoinPackedMatrix * getMatrixByRow() const;
    00192
    00194   const CoinPackedMatrix * getMatrixByCol() const;
    00195
    00197   const char * getObjName() const;
    00198
    00204   void getPreviousRowNames(char const * const * prev,
    00205                            int *card_prev) const;
    00206
    00211   void getPreviousColNames(char const * const * prev,
    00212                            int *card_prev) const;
    00213
    00216   char const * const * getRowNames() const;
    00217
    00219   char const * const *getColNames() const;
    00220
    00224   const char * rowName(int index) const;
    00225
    00229   const char * columnName(int index) const;
    00230
    00234   int rowIndex(const char * name) const;
    00235
    00238   int columnIndex(const char * name) const;
    00239
    00241   double objectiveOffset() const;
    00242
    00244   inline void setObjectiveOffset(double value)
    00245   { objectiveOffset_ = value;}
    00246
    00249   bool isInteger(int columnNumber) const;
    00250
    00252   const char * integerColumns() const;
    00254
    00257
    00258   double getInfinity() const;
    00259
    00262   void setInfinity(const double);
    00263
    00265   double getEpsilon() const;
    00266
    00269   void setEpsilon(const double);
    00270
    00272   int getNumberAcross() const;
    00273
    00276   void setNumberAcross(const int);
    00277
    00279   int getDecimals() const;
    00280
    00283   void setDecimals(const int);
    00285
    00297   void setLpDataWithoutRowAndColNames(
    00298                               const CoinPackedMatrix& m,
    00299                               const double* collb, const double* colub,
    00300                               const double* obj_coeff,
    00301                               const char* integrality,
    00302                               const double* rowlb, const double* rowub);
    00303
    00316   int is_invalid_name(const char *buff, const bool ranged) const;
    00317
    00334   int are_invalid_names(char const * const *vnames,
    00335                                   const int card_vnames,
    00336                                   const bool check_ranged) const;
    00337
    00340   void setDefaultRowNames();
    00341
    00343   void setDefaultColNames();
    00344
    00364   void setLpDataRowAndColNames(char const * const * const rownames,
    00365                                char const * const * const colnames);
    00366
    00381   int writeLp(const char *filename,
    00382               const double epsilon,
    00383               const int numberAcross,
    00384               const int decimals,
    00385               const bool useRowNames = true);
    00386
    00401   int writeLp(FILE *fp,
    00402               const double epsilon,
    00403               const int numberAcross,
    00404               const int decimals,
    00405               const bool useRowNames = true);
    00406
    00409   int writeLp(const char *filename, const bool useRowNames = true);
    00410
    00413   int writeLp(FILE *fp, const bool useRowNames = true);
    00414
    00419   void readLp(const char *filename, const double epsilon);
    00420
    00425   void readLp(const char *filename);
    00426
    00432   void readLp(FILE *fp, const double epsilon);
    00433
    00438   void readLp(FILE *fp);
    00439
    00441   void print() const;
    00443
    00444 protected:
    00446   char * problemName_;
    00447
    00449   int numberRows_;
    00450
    00452   int numberColumns_;
    00453
    00455   int numberElements_;
    00456
    00458   mutable CoinPackedMatrix *matrixByColumn_;
    00459
    00461   CoinPackedMatrix *matrixByRow_;
    00462
    00464   double * rowlower_;
    00465
    00467   double * rowupper_;
    00468
    00470   double * collower_;
    00471
    00473   double * colupper_;
    00474
    00476   mutable double * rhs_;
    00477
    00481   mutable double  *rowrange_;
    00482
    00484   mutable char * rowsense_;
    00485
    00487   double * objective_;
    00488
    00490   double objectiveOffset_;
    00491
    00494   char * integerType_;
    00495
    00497   char * fileName_;
    00498
    00500   double infinity_;
    00501
    00503   double epsilon_;
    00504
    00506   int numberAcross_;
    00507
    00509   int decimals_;
    00510
    00512   char *objName_;
    00513
    00520   char **previous_names_[2];
    00521
    00526   int card_previous_names_[2];
    00527
    00532   char **names_[2];
    00533
    00534   typedef struct {
    00535     int index, next;
    00536   } CoinHashLink;
    00537
    00541   int maxHash_[2];
    00542
    00546   int numberHash_[2];
    00547
    00551   mutable CoinHashLink *hash_[2];
    00552
    00558   void startHash(char const * const * const names,
    00559                  const COINColumnIndex number,
    00560                  int section);
    00561
    00565   void stopHash(int section);
    00566
    00571   COINColumnIndex findHash(const char *name, int section) const;
    00572
    00577   void insertHash(const char *thisName, int section);
    00578
    00581   void out_coeff(FILE *fp, double v, int print_1) const;
    00582
    00586   int find_obj(FILE *fp) const;
    00587
    00593   int is_subject_to(const char *buff) const;
    00594
    00597   int first_is_number(const char *buff) const;
    00598
    00601   int is_comment(const char *buff) const;
    00602
    00604   void skip_comment(char *buff, FILE *fp) const;
    00605
    00607   void scan_next(char *buff, FILE *fp) const;
    00608
    00611   int is_free(const char *buff) const;
    00612
    00615   int is_inf(const char *buff) const;
    00616
    00622   int is_sense(const char *buff) const;
    00623
    00633   int is_keyword(const char *buff) const;
    00634
    00637   int read_monom_obj(FILE *fp, double *coeff, char **name, int *cnt,
    00638                      char **obj_name);
    00639
    00644   int read_monom_row(FILE *fp, char *start_str, double *coeff, char **name,
    00645                      int cnt_coeff) const;
    00646
    00648   void realloc_coeff(double **coeff, char ***colNames, int *maxcoeff) const;
    00649
    00651   void realloc_row(char ***rowNames, int **start, double **rhs,
    00652                    double **rowlow, double **rowup, int *maxrow) const;
    00653
    00655   void realloc_col(double **collow, double **colup, char **is_int,
    00656                    int *maxcol) const;
    00657
    00659   void read_row(FILE *fp, char *buff, double **pcoeff, char ***pcolNames,
    00660                 int *cnt_coeff, int *maxcoeff,
    00661                      double *rhs, double *rowlow, double *rowup,
    00662                      int *cnt_row, double inf) const;
    00663
    00677   void checkRowNames();
    00678
    00687   void checkColNames();
    00688
    00689 };
    00690