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+/* $Id: CoinMpsIO.hpp 1642 2013-10-16 00:43:14Z tkr $ */
+// Copyright (C) 2000, International Business Machines
+// Corporation and others.  All Rights Reserved.
+// This code is licensed under the terms of the Eclipse Public License (EPL).
+
+#ifndef CoinMpsIO_H
+#define CoinMpsIO_H
+
+#if defined(_MSC_VER)
+// Turn off compiler warning about long names
+#  pragma warning(disable:4786)
+#endif
+
+#include <vector>
+#include <string>
+
+#include "CoinUtilsConfig.h"
+#include "CoinPackedMatrix.hpp"
+#include "CoinMessageHandler.hpp"
+#include "CoinFileIO.hpp"
+class CoinModel;
+
+/// The following lengths are in decreasing order (for 64 bit etc)
+/// Large enough to contain element index
+/// This is already defined as CoinBigIndex
+/// Large enough to contain column index
+typedef int COINColumnIndex;
+
+/// Large enough to contain row index (or basis)
+typedef int COINRowIndex;
+
+// We are allowing free format - but there is a limit!
+// User can override by using CXXFLAGS += -DCOIN_MAX_FIELD_LENGTH=nnn
+#ifndef COIN_MAX_FIELD_LENGTH
+#define COIN_MAX_FIELD_LENGTH 160
+#endif
+#define MAX_CARD_LENGTH 5*COIN_MAX_FIELD_LENGTH+80
+
+enum COINSectionType { COIN_NO_SECTION, COIN_NAME_SECTION, COIN_ROW_SECTION,
+		       COIN_COLUMN_SECTION,
+		       COIN_RHS_SECTION, COIN_RANGES_SECTION, COIN_BOUNDS_SECTION,
+		       COIN_ENDATA_SECTION, COIN_EOF_SECTION, COIN_QUADRATIC_SECTION, 
+		       COIN_CONIC_SECTION,COIN_QUAD_SECTION,COIN_SOS_SECTION, 
+		       COIN_BASIS_SECTION,COIN_UNKNOWN_SECTION
+};
+
+enum COINMpsType { COIN_N_ROW, COIN_E_ROW, COIN_L_ROW, COIN_G_ROW,
+  COIN_BLANK_COLUMN, COIN_S1_COLUMN, COIN_S2_COLUMN, COIN_S3_COLUMN,
+  COIN_INTORG, COIN_INTEND, COIN_SOSEND, COIN_UNSET_BOUND,
+  COIN_UP_BOUND, COIN_FX_BOUND, COIN_LO_BOUND, COIN_FR_BOUND,
+                   COIN_MI_BOUND, COIN_PL_BOUND, COIN_BV_BOUND, 
+				   COIN_UI_BOUND, COIN_LI_BOUND, COIN_BOTH_BOUNDS_SET,
+		   COIN_SC_BOUND, COIN_S1_BOUND, COIN_S2_BOUND,
+		   COIN_BS_BASIS, COIN_XL_BASIS, COIN_XU_BASIS,
+		   COIN_LL_BASIS, COIN_UL_BASIS, COIN_UNKNOWN_MPS_TYPE
+};
+class CoinMpsIO;
+/// Very simple code for reading MPS data
+class CoinMpsCardReader {
+
+public:
+
+  /**@name Constructor and destructor */
+  //@{
+  /// Constructor expects file to be open 
+  /// This one takes gzFile if fp null
+  CoinMpsCardReader ( CoinFileInput *input, CoinMpsIO * reader );
+
+  /// Destructor
+  ~CoinMpsCardReader (  );
+  //@}
+
+
+  /**@name card stuff */
+  //@{
+  /// Read to next section
+  COINSectionType readToNextSection (  );
+  /// Gets next field and returns section type e.g. COIN_COLUMN_SECTION
+  COINSectionType nextField (  );
+  /** Gets next field for .gms file and returns type.
+      -1 - EOF
+      0 - what we expected (and processed so pointer moves past)
+      1 - not what we expected
+      leading blanks always ignored
+      input types 
+      0 - anything - stops on non blank card
+      1 - name (in columnname)
+      2 - value
+      3 - value name pair
+      4 - equation type
+      5 - ;
+  */
+  int nextGmsField ( int expectedType );
+  /// Returns current section type
+  inline COINSectionType whichSection (  ) const {
+    return section_;
+  }
+  /// Sets current section type
+  inline void setWhichSection(COINSectionType section  ) {
+    section_=section;
+  }
+  /// Sees if free format. 
+  inline bool freeFormat() const
+  { return freeFormat_;}
+  /// Sets whether free format.  Mainly for blank RHS etc
+  inline void setFreeFormat(bool yesNo) 
+  { freeFormat_=yesNo;}
+  /// Only for first field on card otherwise BLANK_COLUMN
+  /// e.g. COIN_E_ROW
+  inline COINMpsType mpsType (  ) const {
+    return mpsType_;
+  }
+  /// Reads and cleans card - taking out trailing blanks - return 1 if EOF
+  int cleanCard();
+  /// Returns row name of current field
+  inline const char *rowName (  ) const {
+    return rowName_;
+  }
+  /// Returns column name of current field
+  inline const char *columnName (  ) const {
+    return columnName_;
+  }
+  /// Returns value in current field
+  inline double value (  ) const {
+    return value_;
+  }
+  /// Returns value as string in current field
+  inline const char *valueString (  ) const {
+    return valueString_;
+  }
+  /// Whole card (for printing)
+  inline const char *card (  ) const {
+    return card_;
+  }
+  /// Whole card - so we look at it (not const so nextBlankOr will work for gms reader)
+  inline char *mutableCard (  ) {
+    return card_;
+  }
+  /// set position (again so gms reader will work)
+  inline void setPosition(char * position)
+  { position_=position;}
+  /// get position (again so gms reader will work)
+  inline char * getPosition() const
+  { return position_;}
+  /// Returns card number
+  inline CoinBigIndex cardNumber (  ) const {
+    return cardNumber_;
+  }
+  /// Returns file input
+  inline CoinFileInput * fileInput (  ) const {
+    return input_;
+  }
+  /// Sets whether strings allowed
+  inline void setStringsAllowed()
+  { stringsAllowed_=true;}
+  //@}
+
+////////////////// data //////////////////
+protected:
+
+  /**@name data */
+  //@{
+  /// Current value
+  double value_;
+  /// Current card image
+  char card_[MAX_CARD_LENGTH];
+  /// Current position within card image
+  char *position_;
+  /// End of card
+  char *eol_;
+  /// Current COINMpsType
+  COINMpsType mpsType_;
+  /// Current row name
+  char rowName_[COIN_MAX_FIELD_LENGTH];
+  /// Current column name
+  char columnName_[COIN_MAX_FIELD_LENGTH];
+  /// File input
+  CoinFileInput *input_;
+  /// Which section we think we are in
+  COINSectionType section_;
+  /// Card number
+  CoinBigIndex cardNumber_;
+  /// Whether free format.  Just for blank RHS etc
+  bool freeFormat_;
+  /// Whether IEEE - 0 no, 1 INTEL, 2 not INTEL
+  int ieeeFormat_;
+  /// If all names <= 8 characters then allow embedded blanks
+  bool eightChar_;
+  /// MpsIO
+  CoinMpsIO * reader_;
+  /// Message handler
+  CoinMessageHandler * handler_;
+  /// Messages
+  CoinMessages messages_;
+  /// Current element as characters (only if strings allowed) 
+  char valueString_[COIN_MAX_FIELD_LENGTH];
+  /// Whether strings allowed
+  bool stringsAllowed_;
+  //@}
+public:
+  /**@name methods */
+  //@{
+  /// type - 0 normal, 1 INTEL IEEE, 2 other IEEE
+  double osi_strtod(char * ptr, char ** output, int type);
+  /// remove blanks 
+  static void strcpyAndCompress ( char *to, const char *from );
+  ///
+  static char * nextBlankOr ( char *image );
+  /// For strings
+  double osi_strtod(char * ptr, char ** output);
+  //@}
+
+};
+
+//#############################################################################
+#ifdef USE_SBB
+class SbbObject;
+class SbbModel;
+#endif
+/// Very simple class for containing data on set
+class CoinSet {
+
+public:
+
+  /**@name Constructor and destructor */
+  //@{
+  /// Default constructor 
+  CoinSet ( );
+  /// Constructor 
+  CoinSet ( int numberEntries, const int * which);
+
+  /// Copy constructor 
+  CoinSet (const CoinSet &);
+  
+  /// Assignment operator 
+  CoinSet & operator=(const CoinSet& rhs);  
+  
+  /// Destructor
+  virtual ~CoinSet (  );
+  //@}
+
+
+  /**@name gets */
+  //@{
+  /// Returns number of entries
+  inline int numberEntries (  ) const 
+  { return numberEntries_;  }
+  /// Returns type of set - 1 =SOS1, 2 =SOS2
+  inline int setType (  ) const 
+  { return setType_;  }
+  /// Returns list of variables
+  inline const int * which (  ) const 
+  { return which_;  }
+  /// Returns weights
+  inline const double * weights (  ) const 
+  { return weights_;  }
+  //@}
+
+#ifdef USE_SBB
+  /**@name Use in sbb */
+  //@{
+  /// returns an object of type SbbObject
+  virtual SbbObject * sbbObject(SbbModel * model) const 
+  { return NULL;}
+  //@}
+#endif
+
+////////////////// data //////////////////
+protected:
+
+  /**@name data */
+  //@{
+  /// Number of entries
+  int numberEntries_;
+  /// type of set
+  int setType_;
+  /// Which variables are in set
+  int * which_;
+  /// Weights
+  double * weights_;
+  //@}
+};
+
+//#############################################################################
+/// Very simple class for containing SOS set
+class CoinSosSet : public CoinSet{
+
+public:
+
+  /**@name Constructor and destructor */
+  //@{
+  /// Constructor 
+  CoinSosSet ( int numberEntries, const int * which, const double * weights, int type);
+
+  /// Destructor
+  virtual ~CoinSosSet (  );
+  //@}
+
+
+#ifdef USE_SBB
+  /**@name Use in sbb */
+  //@{
+  /// returns an object of type SbbObject
+  virtual SbbObject * sbbObject(SbbModel * model) const ;
+  //@}
+#endif
+
+////////////////// data //////////////////
+protected:
+
+  /**@name data */
+  //@{
+  //@}
+};
+
+//#############################################################################
+
+/** MPS IO Interface
+
+    This class can be used to read in mps files without a solver.  After
+    reading the file, the CoinMpsIO object contains all relevant data, which
+    may be more than a particular OsiSolverInterface allows for.  Items may
+    be deleted to allow for flexibility of data storage.
+
+    The implementation makes the CoinMpsIO object look very like a dummy solver,
+    as the same conventions are used.
+*/
+
+class CoinMpsIO {
+   friend void CoinMpsIOUnitTest(const std::string & mpsDir);
+
+public:
+
+/** @name Methods to retrieve problem information
+
+   These methods return information about the problem held by the CoinMpsIO
+   object.
+   
+   Querying an object that has no data associated with it result in zeros for
+   the number of rows and columns, and NULL pointers from the methods that
+   return vectors.  Const pointers returned from any data-query method are
+   always valid
+*/
+//@{
+    /// Get number of columns
+    int getNumCols() const;
+
+    /// Get number of rows
+    int getNumRows() const;
+
+    /// Get number of nonzero elements
+    int getNumElements() const;
+
+    /// Get pointer to array[getNumCols()] of column lower bounds
+    const double * getColLower() const;
+
+    /// Get pointer to array[getNumCols()] of column upper bounds
+    const double * getColUpper() const;
+
+    /** Get pointer to array[getNumRows()] of constraint senses.
+	<ul>
+	<li>'L': <= constraint
+	<li>'E': =  constraint
+	<li>'G': >= constraint
+	<li>'R': ranged constraint
+	<li>'N': free constraint
+	</ul>
+    */
+    const char * getRowSense() const;
+
+    /** Get pointer to array[getNumRows()] of constraint right-hand sides.
+
+	Given constraints with upper (rowupper) and/or lower (rowlower) bounds,
+	the constraint right-hand side (rhs) is set as
+	<ul>
+	  <li> if rowsense()[i] == 'L' then rhs()[i] == rowupper()[i]
+	  <li> if rowsense()[i] == 'G' then rhs()[i] == rowlower()[i]
+	  <li> if rowsense()[i] == 'R' then rhs()[i] == rowupper()[i]
+	  <li> if rowsense()[i] == 'N' then rhs()[i] == 0.0
+	</ul>
+    */
+    const double * getRightHandSide() const;
+
+    /** Get pointer to array[getNumRows()] of row ranges.
+
+	Given constraints with upper (rowupper) and/or lower (rowlower) bounds, 
+	the constraint range (rowrange) is set as
+	<ul>
+          <li> if rowsense()[i] == 'R' then
+                  rowrange()[i] == rowupper()[i] - rowlower()[i]
+          <li> if rowsense()[i] != 'R' then
+                  rowrange()[i] is 0.0
+        </ul>
+	Put another way, only range constraints have a nontrivial value for
+	rowrange.
+    */
+    const double * getRowRange() const;
+
+    /// Get pointer to array[getNumRows()] of row lower bounds
+    const double * getRowLower() const;
+
+    /// Get pointer to array[getNumRows()] of row upper bounds
+    const double * getRowUpper() const;
+
+    /// Get pointer to array[getNumCols()] of objective function coefficients
+    const double * getObjCoefficients() const;
+
+    /// Get pointer to row-wise copy of the coefficient matrix
+    const CoinPackedMatrix * getMatrixByRow() const;
+
+    /// Get pointer to column-wise copy of the coefficient matrix
+    const CoinPackedMatrix * getMatrixByCol() const;
+
+    /// Return true if column is a continuous variable
+    bool isContinuous(int colNumber) const;
+
+    /** Return true if a column is an integer variable
+
+        Note: This function returns true if the the column
+        is a binary or general integer variable.
+    */
+    bool isInteger(int columnNumber) const;
+  
+    /** Returns array[getNumCols()] specifying if a variable is integer.
+
+	At present, simply coded as zero (continuous) and non-zero (integer)
+	May be extended at a later date.
+    */
+    const char * integerColumns() const;
+
+    /** Returns the row name for the specified index.
+
+	Returns 0 if the index is out of range.
+    */
+    const char * rowName(int index) const;
+
+    /** Returns the column name for the specified index.
+
+	Returns 0 if the index is out of range.
+    */
+    const char * columnName(int index) const;
+
+    /** Returns the index for the specified row name
+  
+	Returns -1 if the name is not found.
+        Returns numberRows for the objective row and > numberRows for
+	dropped free rows.
+    */
+    int rowIndex(const char * name) const;
+
+    /** Returns the index for the specified column name
+  
+	Returns -1 if the name is not found.
+    */
+    int columnIndex(const char * name) const;
+
+    /** Returns the (constant) objective offset
+    
+	This is the RHS entry for the objective row
+    */
+    double objectiveOffset() const;
+    /// Set objective offset
+    inline void setObjectiveOffset(double value)
+    { objectiveOffset_=value;}
+
+    /// Return the problem name
+    const char * getProblemName() const;
+
+    /// Return the objective name
+    const char * getObjectiveName() const;
+
+    /// Return the RHS vector name
+    const char * getRhsName() const;
+
+    /// Return the range vector name
+    const char * getRangeName() const;
+
+    /// Return the bound vector name
+    const char * getBoundName() const;
+    /// Number of string elements
+    inline int numberStringElements() const
+    { return numberStringElements_;}
+    /// String element
+    inline const char * stringElement(int i) const
+    { return stringElements_[i];}
+//@}
+
+
+/** @name Methods to set problem information
+
+    Methods to load a problem into the CoinMpsIO object.
+*/
+//@{
+  
+    /// Set the problem data
+    void setMpsData(const CoinPackedMatrix& m, const double infinity,
+		     const double* collb, const double* colub,
+		     const double* obj, const char* integrality,
+		     const double* rowlb, const double* rowub,
+		     char const * const * const colnames,
+		     char const * const * const rownames);
+    void setMpsData(const CoinPackedMatrix& m, const double infinity,
+		     const double* collb, const double* colub,
+		     const double* obj, const char* integrality,
+		     const double* rowlb, const double* rowub,
+		     const std::vector<std::string> & colnames,
+		     const std::vector<std::string> & rownames);
+    void setMpsData(const CoinPackedMatrix& m, const double infinity,
+		     const double* collb, const double* colub,
+		     const double* obj, const char* integrality,
+		     const char* rowsen, const double* rowrhs,
+		     const double* rowrng,
+		     char const * const * const colnames,
+		     char const * const * const rownames);
+    void setMpsData(const CoinPackedMatrix& m, const double infinity,
+		     const double* collb, const double* colub,
+		     const double* obj, const char* integrality,
+		     const char* rowsen, const double* rowrhs,
+		     const double* rowrng,
+		     const std::vector<std::string> & colnames,
+		     const std::vector<std::string> & rownames);
+
+    /** Pass in an array[getNumCols()] specifying if a variable is integer.
+
+	At present, simply coded as zero (continuous) and non-zero (integer)
+	May be extended at a later date.
+    */
+    void copyInIntegerInformation(const char * integerInformation);
+
+    /// Set problem name
+    void setProblemName(const char *name) ;
+
+    /// Set objective name
+    void setObjectiveName(const char *name) ;
+
+//@}
+
+/** @name Parameter set/get methods
+
+  Methods to set and retrieve MPS IO parameters.
+*/
+
+//@{
+    /// Set infinity
+    void setInfinity(double value);
+
+    /// Get infinity
+    double getInfinity() const;
+
+    /// Set default upper bound for integer variables
+    void setDefaultBound(int value);
+
+    /// Get default upper bound for integer variables
+    int getDefaultBound() const;
+    /// Whether to allow string elements
+    inline int allowStringElements() const
+    { return allowStringElements_;}
+    /// Whether to allow string elements (0 no, 1 yes, 2 yes and try flip)
+    inline void setAllowStringElements(int yesNo)
+    { allowStringElements_ = yesNo;}
+    /** Small element value - elements less than this set to zero on input
+        default is 1.0e-14 */
+    inline double getSmallElementValue() const
+    { return smallElement_;}
+    inline void setSmallElementValue(double value)
+    { smallElement_=value;} 
+//@}
+
+
+/** @name Methods for problem input and output
+
+  Methods to read and write MPS format problem files.
+   
+  The read and write methods return the number of errors that occurred during
+  the IO operation, or -1 if no file is opened.
+
+  \note
+  If the CoinMpsIO class was compiled with support for libz then
+  readMps will automatically try to append .gz to the file name and open it as
+  a compressed file if the specified file name cannot be opened.
+  (Automatic append of the .bz2 suffix when libbz is used is on the TODO list.)
+
+  \todo
+  Allow for file pointers and positioning
+*/
+
+//@{
+    /// Set the current file name for the CoinMpsIO object
+    void setFileName(const char * name);
+
+    /// Get the current file name for the CoinMpsIO object
+    const char * getFileName() const;
+
+    /** Read a problem in MPS format from the given filename.
+
+      Use "stdin" or "-" to read from stdin.
+    */
+    int readMps(const char *filename, const char *extension = "mps");
+
+    /** Read a problem in MPS format from the given filename.
+
+      Use "stdin" or "-" to read from stdin.
+      But do sets as well
+    */
+     int readMps(const char *filename, const char *extension ,
+        int & numberSets, CoinSet **& sets);
+
+    /** Read a problem in MPS format from a previously opened file
+
+      More precisely, read a problem using a CoinMpsCardReader object already
+      associated with this CoinMpsIO object.
+
+      \todo
+      Provide an interface that will allow a client to associate a
+      CoinMpsCardReader object with a CoinMpsIO object by setting the
+      cardReader_ field.
+    */
+    int readMps();
+    /// and
+    int readMps(int & numberSets, CoinSet **& sets);
+    /** Read a basis in MPS format from the given filename.
+	If VALUES on NAME card and solution not NULL fills in solution
+	status values as for CoinWarmStartBasis (but one per char)
+	-1 file error, 0 normal, 1 has solution values
+
+      Use "stdin" or "-" to read from stdin.
+
+      If sizes of names incorrect - read without names
+    */
+    int readBasis(const char *filename, const char *extension ,
+		  double * solution, unsigned char *rowStatus, unsigned char *columnStatus,
+		  const std::vector<std::string> & colnames,int numberColumns,
+		  const std::vector<std::string> & rownames, int numberRows);
+
+    /** Read a problem in GAMS format from the given filename.
+
+      Use "stdin" or "-" to read from stdin.
+      if convertObjective then massages objective column
+    */
+    int readGms(const char *filename, const char *extension = "gms",bool convertObjective=false);
+
+    /** Read a problem in GAMS format from the given filename.
+
+      Use "stdin" or "-" to read from stdin.
+      But do sets as well
+    */
+     int readGms(const char *filename, const char *extension ,
+        int & numberSets, CoinSet **& sets);
+
+    /** Read a problem in GAMS format from a previously opened file
+
+      More precisely, read a problem using a CoinMpsCardReader object already
+      associated with this CoinMpsIO object.
+
+    */
+    // Not for now int readGms();
+    /// and
+    int readGms(int & numberSets, CoinSet **& sets);
+    /** Read a problem in GMPL (subset of AMPL)  format from the given filenames.
+    */
+    int readGMPL(const char *modelName, const char * dataName=NULL, bool keepNames=false);
+
+    /** Write the problem in MPS format to a file with the given filename.
+
+	\param compression can be set to three values to indicate what kind
+	of file should be written
+	<ul>
+	  <li> 0: plain text (default)
+	  <li> 1: gzip compressed (.gz is appended to \c filename)
+	  <li> 2: bzip2 compressed (.bz2 is appended to \c filename) (TODO)
+	</ul>
+	If the library was not compiled with the requested compression then
+	writeMps falls back to writing a plain text file.
+
+	\param formatType specifies the precision to used for values in the
+	MPS file
+	<ul>
+	  <li> 0: normal precision (default)
+	  <li> 1: extra accuracy
+	  <li> 2: IEEE hex
+	</ul>
+
+	\param numberAcross specifies whether 1 or 2 (default) values should be
+	specified on every data line in the MPS file.
+
+	\param quadratic specifies quadratic objective to be output
+    */
+    int writeMps(const char *filename, int compression = 0,
+		 int formatType = 0, int numberAcross = 2,
+		 CoinPackedMatrix * quadratic = NULL,
+		 int numberSOS=0,const CoinSet * setInfo=NULL) const;
+
+    /// Return card reader object so can see what last card was e.g. QUADOBJ
+    inline const CoinMpsCardReader * reader() const
+    { return cardReader_;}
+  
+    /** Read in a quadratic objective from the given filename.
+
+      If filename is NULL (or the same as the currently open file) then
+      reading continues from the current file.
+      If not, the file is closed and the specified file is opened.
+      
+      Code should be added to
+      general MPS reader to read this if QSECTION
+      Data is assumed to be Q and objective is c + 1/2 xT Q x
+      No assumption is made for symmetry, positive definite, etc.
+      No check is made for duplicates or non-triangular if checkSymmetry==0.
+      If 1 checks lower triangular (so off diagonal should be 2*Q)
+      if 2 makes lower triangular and assumes full Q (but adds off diagonals)
+      
+      Arrays should be deleted by delete []
+
+      Returns number of errors:
+      <ul>
+	<li> -1: bad file
+	<li> -2: no Quadratic section
+	<li> -3: an empty section
+        <li> +n: then matching errors etc (symmetry forced)
+        <li> -4: no matching errors but fails triangular test
+		 (triangularity forced)
+      </ul>
+      columnStart is numberColumns+1 long, others numberNonZeros
+    */
+    int readQuadraticMps(const char * filename,
+			 int * &columnStart, int * &column, double * &elements,
+			 int checkSymmetry);
+
+    /** Read in a list of cones from the given filename.  
+
+      If filename is NULL (or the same as the currently open file) then
+      reading continues from the current file.
+      If not, the file is closed and the specified file is opened.
+
+      Code should be added to
+      general MPS reader to read this if CSECTION
+      No checking is done that in unique cone
+
+      Arrays should be deleted by delete []
+
+      Returns number of errors, -1 bad file, -2 no conic section,
+      -3 empty section
+
+      columnStart is numberCones+1 long, other number of columns in matrix
+
+	  coneType is 1 for QUAD, 2 for RQUAD (numberCones long)
+*/	
+	int readConicMps(const char * filename,
+			int * &columnStart, int * &column, int * &coneType, int & numberCones);
+    /// Set whether to move objective from matrix
+    inline void setConvertObjective(bool trueFalse)
+    { convertObjective_=trueFalse;}
+  /// copies in strings from a CoinModel - returns number
+  int copyStringElements(const CoinModel * model);
+  //@}
+
+/** @name Constructors and destructors */
+//@{
+    /// Default Constructor
+    CoinMpsIO(); 
+      
+    /// Copy constructor 
+    CoinMpsIO (const CoinMpsIO &);
+  
+    /// Assignment operator 
+    CoinMpsIO & operator=(const CoinMpsIO& rhs);
+  
+    /// Destructor 
+    ~CoinMpsIO ();
+//@}
+
+
+/**@name Message handling */
+//@{
+  /** Pass in Message handler
+  
+      Supply a custom message handler. It will not be destroyed when the
+      CoinMpsIO object is destroyed.
+  */
+  void passInMessageHandler(CoinMessageHandler * handler);
+
+  /// Set the language for messages.
+  void newLanguage(CoinMessages::Language language);
+
+  /// Set the language for messages.
+  inline void setLanguage(CoinMessages::Language language) {newLanguage(language);}
+
+  /// Return the message handler
+  inline CoinMessageHandler * messageHandler() const {return handler_;}
+
+  /// Return the messages
+  inline CoinMessages messages() {return messages_;}
+  /// Return the messages pointer
+  inline CoinMessages * messagesPointer() {return & messages_;}
+//@}
+
+
+/**@name Methods to release storage
+
+  These methods allow the client to reduce the storage used by the CoinMpsIO
+  object be selectively releasing unneeded problem information.
+*/
+//@{
+    /** Release all information which can be re-calculated.
+    
+	E.g., row sense, copies of rows, hash tables for names.
+    */
+    void releaseRedundantInformation();
+
+    /// Release all row information (lower, upper)
+    void releaseRowInformation();
+
+    /// Release all column information (lower, upper, objective)
+    void releaseColumnInformation();
+
+    /// Release integer information
+    void releaseIntegerInformation();
+
+    /// Release row names
+    void releaseRowNames();
+
+    /// Release column names
+    void releaseColumnNames();
+
+    /// Release matrix information
+    void releaseMatrixInformation();
+  //@}
+
+protected:
+  
+/**@name Miscellaneous helper functions */
+  //@{
+
+    /// Utility method used several times to implement public methods
+    void
+    setMpsDataWithoutRowAndColNames(
+		      const CoinPackedMatrix& m, const double infinity,
+		      const double* collb, const double* colub,
+		      const double* obj, const char* integrality,
+		      const double* rowlb, const double* rowub);
+    void
+    setMpsDataColAndRowNames(
+		      const std::vector<std::string> & colnames,
+		      const std::vector<std::string> & rownames);
+    void
+    setMpsDataColAndRowNames(
+		      char const * const * const colnames,
+		      char const * const * const rownames);
+
+  
+    /// Does the heavy lifting for destruct and assignment.
+    void gutsOfDestructor();
+
+    /// Does the heavy lifting for copy and assignment.
+    void gutsOfCopy(const CoinMpsIO &);
+  
+    /// Clears problem data from the CoinMpsIO object.
+    void freeAll();
+
+
+    /** A quick inlined function to convert from lb/ub style constraint
+	definition to sense/rhs/range style */
+    inline void
+    convertBoundToSense(const double lower, const double upper,
+			char& sense, double& right, double& range) const;
+    /** A quick inlined function to convert from sense/rhs/range stryle
+	constraint definition to lb/ub style */
+    inline void
+    convertSenseToBound(const char sense, const double right,
+			const double range,
+			double& lower, double& upper) const;
+
+  /** Deal with a filename
+  
+    As the name says.
+    Returns +1 if the file name is new, 0 if it's the same as before
+    (i.e., matches fileName_), and -1 if there's an error and the file
+    can't be opened.
+    Handles automatic append of .gz suffix when compiled with libz.
+
+    \todo
+    Add automatic append of .bz2 suffix when compiled with libbz.
+  */
+
+  int dealWithFileName(const char * filename,  const char * extension,
+		       CoinFileInput * &input); 
+  /** Add string to list
+      iRow==numberRows is objective, nr+1 is lo, nr+2 is up
+      iColumn==nc is rhs (can't cope with ranges at present)
+  */
+  void addString(int iRow,int iColumn, const char * value);
+  /// Decode string
+  void decodeString(int iString, int & iRow, int & iColumn, const char * & value) const;
+  //@}
+
+  
+  // for hashing
+  typedef struct {
+    int index, next;
+  } CoinHashLink;
+
+  /**@name Hash table methods */
+  //@{
+  /// Creates hash list for names (section = 0 for rows, 1 columns)
+  void startHash ( char **names, const int number , int section );
+  /// This one does it when names are already in
+  void startHash ( int section ) const;
+  /// Deletes hash storage
+  void stopHash ( int section );
+  /// Finds match using hash,  -1 not found
+  int findHash ( const char *name , int section ) const;
+  //@}
+
+    /**@name Cached problem information */
+    //@{
+      /// Problem name
+      char * problemName_;
+
+      /// Objective row name
+      char * objectiveName_;
+
+      /// Right-hand side vector name
+      char * rhsName_;
+
+      /// Range vector name
+      char * rangeName_;
+
+      /// Bounds vector name
+      char * boundName_;
+
+      /// Number of rows
+      int numberRows_;
+
+      /// Number of columns
+      int numberColumns_;
+
+      /// Number of coefficients
+      CoinBigIndex numberElements_;
+
+      /// Pointer to dense vector of row sense indicators
+      mutable char    *rowsense_;
+  
+      /// Pointer to dense vector of row right-hand side values
+      mutable double  *rhs_;
+  
+      /** Pointer to dense vector of slack variable upper bounds for range 
+          constraints (undefined for non-range rows)
+      */
+      mutable double  *rowrange_;
+   
+      /// Pointer to row-wise copy of problem matrix coefficients.
+      mutable CoinPackedMatrix *matrixByRow_;  
+
+      /// Pointer to column-wise copy of problem matrix coefficients.
+      CoinPackedMatrix *matrixByColumn_;  
+
+      /// Pointer to dense vector of row lower bounds
+      double * rowlower_;
+
+      /// Pointer to dense vector of row upper bounds
+      double * rowupper_;
+
+      /// Pointer to dense vector of column lower bounds
+      double * collower_;
+
+      /// Pointer to dense vector of column upper bounds
+      double * colupper_;
+
+      /// Pointer to dense vector of objective coefficients
+      double * objective_;
+
+      /// Constant offset for objective value (i.e., RHS value for OBJ row)
+      double objectiveOffset_;
+
+
+      /** Pointer to dense vector specifying if a variable is continuous
+	  (0) or integer (1).
+      */
+      char * integerType_;
+
+      /** Row and column names
+	  Linked to hash table sections (0 - row names, 1 column names)
+      */
+      char **names_[2];
+    //@}
+
+    /** @name Hash tables */
+    //@{
+      /// Current file name
+      char * fileName_;
+
+      /// Number of entries in a hash table section
+      int numberHash_[2];
+
+      /// Hash tables (two sections, 0 - row names, 1 - column names)
+      mutable CoinHashLink *hash_[2];
+    //@}
+
+    /** @name CoinMpsIO object parameters */
+    //@{
+      /// Upper bound when no bounds for integers
+      int defaultBound_; 
+
+      /// Value to use for infinity
+      double infinity_;
+      /// Small element value
+      double smallElement_;
+
+      /// Message handler
+      CoinMessageHandler * handler_;
+      /** Flag to say if the message handler is the default handler.
+
+          If true, the handler will be destroyed when the CoinMpsIO
+	  object is destroyed; if false, it will not be destroyed.
+      */
+      bool defaultHandler_;
+      /// Messages
+      CoinMessages messages_;
+      /// Card reader
+      CoinMpsCardReader * cardReader_;
+      /// If .gms file should it be massaged to move objective
+      bool convertObjective_;
+      /// Whether to allow string elements
+      int allowStringElements_;
+      /// Maximum number of string elements
+      int maximumStringElements_;
+      /// Number of string elements
+      int numberStringElements_;
+      /// String elements
+      char ** stringElements_;
+    //@}
+
+};
+
+//#############################################################################
+/** A function that tests the methods in the CoinMpsIO class. The
+    only reason for it not to be a member method is that this way it doesn't
+    have to be compiled into the library. And that's a gain, because the
+    library should be compiled with optimization on, but this method should be
+    compiled with debugging. Also, if this method is compiled with
+    optimization, the compilation takes 10-15 minutes and the machine pages
+    (has 256M core memory!)... */
+void
+CoinMpsIOUnitTest(const std::string & mpsDir);
+// Function to return number in most efficient way
+// section is 0 for columns, 1 for rhs,ranges and 2 for bounds
+/* formatType is
+   0 - normal and 8 character names
+   1 - extra accuracy
+   2 - IEEE hex - INTEL
+   3 - IEEE hex - not INTEL
+*/
+void
+CoinConvertDouble(int section, int formatType, double value, char outputValue[24]);
+
+#endif
+