Added linux shared libraries and header files for int and ecos functions

1 files changed, 805 insertions, 0 deletions

diff --git a/thirdparty/linux/include/coin1/CoinLpIO.hpp b/thirdparty/linux/include/coin1/CoinLpIO.hpp
new file mode 100644
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+++ b/thirdparty/linux/include/coin1/CoinLpIO.hpp
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+/* $Id: CoinLpIO.hpp 1749 2014-10-24 20:00:14Z tkr $ */
+// Last edit: 11/5/08
+//
+// Name:     CoinLpIO.hpp; Support for Lp files
+// Author:   Francois Margot
+//           Tepper School of Business
+//           Carnegie Mellon University, Pittsburgh, PA 15213
+//           email: fmargot@andrew.cmu.edu
+// Date:     12/28/03
+//-----------------------------------------------------------------------------
+// Copyright (C) 2003, Francois Margot, International Business Machines
+// Corporation and others.  All Rights Reserved.
+// This code is licensed under the terms of the Eclipse Public License (EPL).
+
+#ifndef CoinLpIO_H
+#define CoinLpIO_H
+
+#include <cstdio>
+
+#include "CoinPackedMatrix.hpp"
+#include "CoinMessage.hpp"
+class CoinSet;
+
+const int MAX_OBJECTIVES = 2;
+
+typedef int COINColumnIndex;
+
+  /** Class to read and write Lp files 
+
+ Lp file format: 
+
+/ this is a comment <BR>
+\ this too <BR>
+ Min<BR>
+  obj: x0 + x1 + 3 x2 - 4.5 xyr + 1 <BR>
+ s.t. <BR>
+ cons1: x0 - x2 - 2.3 x4 <= 4.2   / this is another comment <BR>
+ c2: x1 + x2 >= 1 <BR>
+ cc: x1 + x2 + xyr = 2 <BR>
+ Bounds <BR>
+ 0 <= x1 <= 3 <BR>
+ 1 >= x2 <BR>
+ x3 = 1 <BR>
+ -2 <= x4 <= Inf <BR>
+ xyr free <BR>
+ Integers <BR>
+ x0 <BR>
+ Generals <BR>
+ x1 xyr <BR>
+ Binaries <BR>
+ x2 <BR>
+ End
+
+Notes: <UL>
+ <LI> Keywords are: Min, Max, Minimize, Maximize, s.t., Subject To, 
+      Bounds, Integers, Generals, Binaries, End, Free, Inf. 
+ <LI> Keywords are not case sensitive and may be in plural or singular form.
+      They should not be used as objective, row or column names.
+ <LI> Bounds, Integers, Generals, Binaries sections are optional.
+ <LI> Generals and Integers are synonymous.
+ <LI> Bounds section (if any) must come before Integers, Generals, and 
+      Binaries sections.
+ <LI> Row names must be followed by ':' without blank space.
+      Row names are optional. If row names are present, 
+      they must be distinct (if the k-th constraint has no given name, its name
+      is set automatically to "consk" for k=0,...,).
+      For valid row names, see the method is_invalid_name(). 
+ <LI> Column names must be followed by a blank space. They must be distinct. 
+      For valid column names, see the method is_invalid_name(). 
+ <LI> Multiple objectives may be specified, but when there are multiple
+      objectives, they must have names (to indicate where each one starts).
+ <LI> The objective function names must be followed by ':' without blank space.
+      If there is a single objective, the objective function name is optional.
+      If no name is given, the name is set to "obj" by default.
+      For valid objective function names, see the method is_invalid_name(). 
+ <LI> Ranged constraints are written as two constraints.
+      If a name is given for a ranged constraint, the upper bound constraint 
+      has that name and the lower bound constraint has that name with "_low" 
+      as suffix. This should be kept in mind when assigning names to ranged
+      constraint, as the resulting name must be distinct from all the other
+      names and be considered valid by the method is_invalid_name().
+ <LI> At most one term related to any single variable may appear in the
+      objective function; if more than one term are present, only the last
+      one is taken into account.
+      At most one constant term may appear in the objective function; 
+      if present, it must appear last. 
+ <LI> Default bounds are 0 for lower bound and +infinity for upper bound.
+ <LI> Free variables get default lower bound -infinity and 
+      default upper bound +infinity. Writing "x0 Free" in an
+      LP file means "set lower bound on x0 to -infinity".
+ <LI> If more than one upper (resp. lower) bound on a variable appears in 
+      the Bounds section, the last one is the one taken into 
+      account. The bounds for a binary variable are set to 0/1 only if this 
+      bound is stronger than the bound obtained from the Bounds section. 
+ <LI> Numbers larger than DBL_MAX (or larger than 1e+400) in the input file
+      might crash the code.
+ <LI> A comment must start with '\' or '/'. That symbol must either be
+      the first character of a line or be preceded by a blank space. The 
+      comment ends at the end of the 
+      line. Comments are skipped while reading an Lp file and they may be
+      inserted anywhere.
+</UL>
+*/
+class CoinLpIO {
+      friend void CoinLpIOUnitTest(const std::string & lpDir); 
+public:
+
+  /**@name Constructor and Destructor */
+  //@{
+  /// Default Constructor
+  CoinLpIO(); 
+  
+  /// Does the heavy lifting for destruct and assignment.
+  void gutsOfDestructor(); 
+ 
+  /// Does the heavy lifting for copy and assignment
+  void gutsOfCopy(const CoinLpIO &); 
+ 
+  /// assignment operator
+  CoinLpIO & operator = (const CoinLpIO& rhs) ; 
+ 
+  /// Copy constructor 
+  CoinLpIO (const CoinLpIO &); 
+
+  /// Destructor 
+  ~CoinLpIO();
+
+  /** Free the vector previous_names_[section] and set 
+      card_previous_names_[section] to 0.
+      section = 0 for row names, 
+      section = 1 for column names.  
+  */
+  void freePreviousNames(const int section);
+
+  /// Free all memory (except memory related to hash tables and objName_).
+  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;
+
+  /**@name Queries */
+  //@{
+
+  /// Get the problem name
+  const char * getProblemName() const;
+
+  /// Set problem name
+  void setProblemName(const char *name);
+
+  /// 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 row lower bounds
+  const double * getRowLower() const;
+  
+  /// Get pointer to array[getNumRows()] of row upper bounds
+  const double * getRowUpper() 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 ranged constraints have a nontrivial value for
+  rowrange.
+  */
+  const double * getRowRange() const;
+
+  /// Get pointer to array[getNumCols()] of objective function coefficients
+  const int getNumObjectives() const;
+  
+  /// Get pointer to array[getNumCols()] of objective function coefficients
+  const double * getObjCoefficients() const;
+  
+  /// Get pointer to array[getNumCols()] of objective function coefficients for objective j
+  const double * getObjCoefficients(int j) 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;
+
+  /// Get objective function name
+  const char * getObjName() const;
+  
+  /// Get objective function name for objective j
+  const char * getObjName(int j) const;
+  
+  /// Get pointer to array[*card_prev] of previous row names.
+  /// The value of *card_prev might be different than getNumRows()+1 if 
+  /// non distinct
+  /// row names were present or if no previous names were saved or if
+  /// the object was holding a different problem before.
+  void getPreviousRowNames(char const * const * prev, 
+			   int *card_prev) const;
+
+  /// Get pointer to array[*card_prev] of previous column names.
+  /// The value of *card_prev might be different than getNumCols() if non
+  /// distinct column names were present of if no previous names were saved, 
+  /// or if the object was holding a different problem before. 
+  void getPreviousColNames(char const * const * prev, 
+			   int *card_prev) const;
+
+  /// Get pointer to array[getNumRows()+1] of row names, including
+  /// objective function name as last entry.
+  char const * const * getRowNames() const;
+  
+  /// Get pointer to array[getNumCols()] of column names
+  char const * const *getColNames() const;
+  
+  /// Return the row name for the specified index.
+  /// Return the objective function name if index = getNumRows().
+  /// Return 0 if the index is out of range or if row names are not defined.
+  const char * rowName(int index) const;
+
+  /// Return the column name for the specified index.
+  /// Return 0 if the index is out of range or if column names are not 
+  /// defined.
+  const char * columnName(int index) const;
+
+  /// Return the index for the specified row name.
+  /// Return getNumRows() for the objective function name.
+  /// Return -1 if the name is not found.
+  int rowIndex(const char * name) const;
+
+  /// Return the index for the specified column name.
+  /// Return -1 if the name is not found.
+  int columnIndex(const char * name) const;
+
+  ///Returns the (constant) objective offset
+  double objectiveOffset() const;
+  
+  ///Returns the (constant) objective offset for objective j
+  double objectiveOffset(int j) const;
+  
+  /// Set objective offset
+  inline void setObjectiveOffset(double value)
+  { objectiveOffset_[0] = value;}
+  
+  /// Set objective offset
+   inline void setObjectiveOffset(double value, int j)
+  { objectiveOffset_[j] = value;}
+  
+  /// Return true if a column is an integer (binary or general 
+  /// integer) variable
+  bool isInteger(int columnNumber) const;
+  
+  /// Get characteristic vector of integer variables
+  const char * integerColumns() const;
+  //@}
+  
+  /**@name Parameters */
+  //@{
+  /// Get infinity
+  double getInfinity() const;
+
+  /// Set infinity. Any number larger is considered infinity.
+  /// Default: DBL_MAX
+  void setInfinity(const double);
+
+  /// Get epsilon
+  double getEpsilon() const;
+
+  /// Set epsilon.
+  /// Default: 1e-5.
+  void setEpsilon(const double);
+
+  /// Get numberAcross, the number of monomials to be printed per line
+  int getNumberAcross() const;
+
+  /// Set numberAcross.
+  /// Default: 10.
+  void setNumberAcross(const int);
+
+  /// Get decimals, the number of digits to write after the decimal point
+  int getDecimals() const;
+
+  /// Set decimals.
+  /// Default: 5
+  void setDecimals(const int);
+  //@}
+
+  /**@name Public methods */
+  //@{
+  /** Set the data of the object.
+      Set it from the coefficient matrix m, the lower bounds
+      collb,  the upper bounds colub, objective function obj_coeff, 
+      integrality vector integrality, lower/upper bounds on the constraints.
+      The sense of optimization of the objective function is assumed to be 
+      a minimization. 
+      Numbers larger than DBL_MAX (or larger than 1e+400) 
+      might crash the code. There are two version. The second one is for
+      setting multiple objectives.
+  */
+  void setLpDataWithoutRowAndColNames(
+			      const CoinPackedMatrix& m,
+			      const double* collb, const double* colub,
+			      const double* obj_coeff,
+			      const char* integrality,
+			      const double* rowlb, const double* rowub);
+
+  void setLpDataWithoutRowAndColNames(
+			      const CoinPackedMatrix& m,
+			      const double* collb, const double* colub,
+			      const double* obj_coeff[MAX_OBJECTIVES],
+			      int num_objectives,
+			      const char* integrality,
+			      const double* rowlb, const double* rowub);
+
+  /** Return 0 if buff is a valid name for a row, a column or objective
+      function, return a positive number otherwise.
+      If parameter ranged = true, the name is intended for a ranged 
+      constraint. <BR>
+      Return 1 if the name has more than 100 characters (96 characters
+      for a ranged constraint name, as "_low" will be added to the name).<BR>
+      Return 2 if the name starts with a number.<BR>
+      Return 3 if the name is not built with 
+      the letters a to z, A to Z, the numbers 0 to 9 or the characters
+      " ! # $ % & ( ) . ; ? @ _ ' ` { } ~ <BR>
+      Return 4 if the name is a keyword.<BR>
+      Return 5 if the name is empty or NULL. */
+  int is_invalid_name(const char *buff, const bool ranged) const;
+  
+  /** Return 0 if each of the card_vnames entries of vnames is a valid name, 
+      return a positive number otherwise. The return value, if not 0, is the 
+      return value of is_invalid_name() for the last invalid name
+      in vnames. If check_ranged = true, the names are row names and 
+      names for ranged constaints must be checked for additional restrictions
+      since "_low" will be added to the name if an Lp file is written.
+      When check_ranged = true, card_vnames must have getNumRows()+1 entries, 
+      with entry vnames[getNumRows()] being the
+      name of the objective function.
+      For a description of valid names and return values, see the method 
+      is_invalid_name(). 
+
+      This method must not be called with check_ranged = true before 
+      setLpDataWithoutRowAndColNames() has been called, since access
+      to the indices of all the ranged constraints is required.
+  */
+  int are_invalid_names(char const * const *vnames, 
+				  const int card_vnames,
+				  const bool check_ranged) const;
+  
+  /// Set objective function name to the default "obj" and row 
+  /// names to the default "cons0", "cons1", ...
+  void setDefaultRowNames();
+
+  /// Set column names to the default "x0", "x1", ...
+  void setDefaultColNames();
+
+  /** Set the row and column names.
+      The array rownames must either be NULL or have exactly getNumRows()+1 
+      distinct entries,
+      each of them being a valid name (see is_invalid_name()) and the
+      last entry being the intended name for the objective function.
+      If rownames is NULL, existing row names and objective function
+      name are not changed.
+      If rownames is deemed invalid, default row names and objective function
+      name are used (see setDefaultRowNames()). The memory location of 
+      array rownames (or its entries) should not be related
+      to the memory location of the array (or entries) obtained from 
+      getRowNames() or getPreviousRowNames(), as the call to 
+      setLpDataRowAndColNames() modifies the corresponding arrays. 
+      Unpredictable results
+      are obtained if this requirement is ignored.
+
+      Similar remarks apply to the array colnames, which must either be
+      NULL or have exactly getNumCols() entries.
+  */
+  void setLpDataRowAndColNames(char const * const * const rownames,
+			       char const * const * const colnames);
+
+  /** Write the data in Lp format in the file with name filename.
+      Coefficients with value less than epsilon away from an integer value
+      are written as integers.
+      Write at most numberAcross monomials on a line.
+      Write non integer numbers with decimals digits after the decimal point.
+      Write objective function name and row names if useRowNames = true.
+
+      Ranged constraints are written as two constraints.
+      If row names are used, the upper bound constraint has the
+      name of the original ranged constraint and the
+      lower bound constraint has for name the original name with 
+      "_low" as suffix. If doing so creates two identical row names,
+      default row names are used (see setDefaultRowNames()).
+  */
+  int writeLp(const char *filename, 
+	      const double epsilon, 
+	      const int numberAcross,
+	      const int decimals,
+	      const bool useRowNames = true);
+
+  /** Write the data in Lp format in the file pointed to by the paramater fp.
+      Coefficients with value less than epsilon away from an integer value
+      are written as integers.
+      Write at most numberAcross monomials on a line.
+      Write non integer numbers with decimals digits after the decimal point.
+      Write objective function name and row names if useRowNames = true.
+
+      Ranged constraints are written as two constraints.
+      If row names are used, the upper bound constraint has the
+      name of the original ranged constraint and the
+      lower bound constraint has for name the original name with 
+      "_low" as suffix. If doing so creates two identical row names,
+      default row names are used (see setDefaultRowNames()).
+  */
+  int writeLp(FILE *fp, 
+	      const double epsilon, 
+	      const int numberAcross,
+	      const int decimals,
+	      const bool useRowNames = true);
+
+  /// Write the data in Lp format in the file with name filename.
+  /// Write objective function name and row names if useRowNames = true.
+  int writeLp(const char *filename, const bool useRowNames = true);
+
+  /// Write the data in Lp format in the file pointed to by the parameter fp.
+  /// Write objective function name and row names if useRowNames = true.
+  int writeLp(FILE *fp, const bool useRowNames = true);
+
+  /// Read the data in Lp format from the file with name filename, using
+  /// the given value for epsilon. If the original problem is
+  /// a maximization problem, the objective function is immediadtly 
+  /// flipped to get a minimization problem.
+  void readLp(const char *filename, const double epsilon);
+
+  /// Read the data in Lp format from the file with name filename.
+  /// If the original problem is
+  /// a maximization problem, the objective function is immediadtly 
+  /// flipped to get a minimization problem.  
+  void readLp(const char *filename);
+
+  /// Read the data in Lp format from the file stream, using
+  /// the given value for epsilon.
+  /// If the original problem is
+  /// a maximization problem, the objective function is immediadtly 
+  /// flipped to get a minimization problem.  
+  void readLp(FILE *fp, const double epsilon);
+
+  /// Read the data in Lp format from the file stream.
+  /// If the original problem is
+  /// a maximization problem, the objective function is immediadtly 
+  /// flipped to get a minimization problem.  
+  void readLp(FILE *fp);
+
+  /// Dump the data. Low level method for debugging.
+  void print() const;
+  
+  /// Load in SOS stuff
+  void loadSOS(int numberSets,const CoinSet * sets);
+  
+  /// Load in SOS stuff
+  void loadSOS(int numberSets,const CoinSet ** sets);
+  
+  /// Number of SOS sets
+  inline int numberSets() const
+  { return numberSets_;}
+
+  /// Set information
+  inline CoinSet ** setInformation() const
+  { return set_;}
+  //@}
+/**@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_;}
+//@}
+
+protected:
+  /// Problem name
+  char * problemName_;
+
+  /// 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_;
+
+  /// Number of rows
+  int numberRows_;
+  
+  /// Number of columns
+  int numberColumns_;
+  
+  /// Number of elements
+  int numberElements_;
+  
+  /// Pointer to column-wise copy of problem matrix coefficients.
+  mutable CoinPackedMatrix *matrixByColumn_;  
+  
+  /// Pointer to row-wise copy of problem matrix coefficients.
+  CoinPackedMatrix *matrixByRow_;  
+  
+  /// 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 row rhs
+  mutable double * rhs_;
+  
+  /** Pointer to dense vector of slack variable upper bounds for ranged 
+      constraints (undefined for non-ranged constraints)
+  */
+  mutable double  *rowrange_;
+
+  /// Pointer to dense vector of row senses
+  mutable char * rowsense_;
+  
+  /// Pointer to dense vector of objective coefficients
+  double * objective_[MAX_OBJECTIVES];
+
+  /// Number of objectives
+  int num_objectives_;
+  
+  /// Constant offset for objective value
+  double objectiveOffset_[MAX_OBJECTIVES];
+  
+  /// Pointer to dense vector specifying if a variable is continuous
+  /// (0) or integer (1).
+  char * integerType_;
+  
+  /// Pointer to sets
+  CoinSet ** set_;
+
+  /// Number of sets
+  int numberSets_;
+  
+  /// Current file name
+  char * fileName_;
+  
+  /// Value to use for infinity
+  double infinity_;
+
+  /// Value to use for epsilon
+  double epsilon_;
+
+  /// Number of monomials printed in a row
+  int numberAcross_;
+
+  /// Number of decimals printed for coefficients
+  int decimals_;
+
+  /// Objective function name
+  char *objName_[MAX_OBJECTIVES];
+
+  /** Row names (including objective function name) 
+      and column names when stopHash() for the corresponding 
+      section was last called or for initial names (deemed invalid) 
+      read from a file.<BR>
+      section = 0 for row names, 
+      section = 1 for column names.  */
+  char **previous_names_[2];
+
+  /// card_previous_names_[section] holds the number of entries in the vector 
+  /// previous_names_[section].
+  /// section = 0 for row names, 
+  /// section = 1 for column names. 
+  int card_previous_names_[2];
+
+  /// Row names (including objective function name) 
+  /// and column names (linked to Hash tables).
+  /// section = 0 for row names, 
+  /// section = 1 for column names. 
+  char **names_[2];
+
+  typedef struct {
+    int index, next;
+  } CoinHashLink;
+
+  /// Maximum number of entries in a hash table section.
+  /// section = 0 for row names, 
+  /// section = 1 for column names. 
+  int maxHash_[2];
+
+  /// Number of entries in a hash table section.
+  /// section = 0 for row names, 
+  /// section = 1 for column names. 
+  int numberHash_[2];
+
+  /// Hash tables with two sections.
+  /// section = 0 for row names (including objective function name), 
+  /// section = 1 for column names. 
+  mutable CoinHashLink *hash_[2];
+
+  /// Build the hash table for the given names. The parameter number is
+  /// the cardinality of parameter names. Remove duplicate names. 
+  ///
+  /// section = 0 for row names, 
+  /// section = 1 for column names. 
+  void startHash(char const * const * const names, 
+		 const COINColumnIndex number, 
+		 int section);
+
+  /// Delete hash storage. If section = 0, it also frees objName_.
+  /// section = 0 for row names, 
+  /// section = 1 for column names. 
+  void stopHash(int section);
+
+  /// Return the index of the given name, return -1 if the name is not found.
+  /// Return getNumRows() for the objective function name.
+  /// section = 0 for row names (including objective function name), 
+  /// section = 1 for column names. 
+  COINColumnIndex findHash(const char *name, int section) const;
+
+  /// Insert thisName in the hash table if not present yet; does nothing
+  /// if the name is already in.
+  /// section = 0 for row names, 
+  /// section = 1 for column names. 
+  void insertHash(const char *thisName, int section);
+
+  /// Write a coefficient.
+  /// print_1 = 0 : do not print the value 1.
+  void out_coeff(FILE *fp, double v, int print_1) const;
+
+  /// Locate the objective function. 
+  /// Return 1 if found the keyword "Minimize" or one of its variants, 
+  /// -1 if found keyword "Maximize" or one of its variants.
+  int find_obj(FILE *fp) const;
+
+  /// Return an integer indicating if the keyword "subject to" or one
+  /// of its variants has been read.
+  /// Return 1 if buff is the keyword "s.t" or one of its variants.
+  /// Return 2 if buff is the keyword "subject" or one of its variants.
+  /// Return 0 otherwise.
+  int is_subject_to(const char *buff) const;
+
+  /// Return 1 if the first character of buff is a number.
+  /// Return 0 otherwise.
+  int first_is_number(const char *buff) const;
+
+  /// Return 1 if the first character of buff is '/' or '\'.
+  /// Return 0 otherwise.
+  int is_comment(const char *buff) const;
+
+  /// Read the file fp until buff contains an end of line
+  void skip_comment(char *buff, FILE *fp) const;
+
+  /// Put in buff the next string that is not part of a comment
+  void scan_next(char *buff, FILE *fp) const;
+
+  /// Return 1 if buff is the keyword "free" or one of its variants.
+  /// Return 0 otherwise.
+  int is_free(const char *buff) const;
+  
+  /// Return 1 if buff is the keyword "inf" or one of its variants.
+  /// Return 0 otherwise.
+  int is_inf(const char *buff) const;
+  
+  /// Return an integer indicating the inequality sense read.
+  /// Return 0 if buff is '<='.
+  /// Return 1 if buff is '='.
+  /// Return 2 if buff is '>='.
+  /// Return -1 otherwise.
+  int is_sense(const char *buff) const;
+
+  /// Return an integer indicating if one of the keywords "Bounds", "Integers",
+  /// "Generals", "Binaries", "Semi-continuous", "Sos", "End", or one
+  /// of their variants has been read. (note Semi-continuous not coded)
+  /// Return 1 if buff is the keyword "Bounds" or one of its variants.
+  /// Return 2 if buff is the keyword "Integers" or "Generals" or one of their 
+  /// variants.
+  /// Return 3 if buff is the keyword "Binaries" or one of its variants.
+  /// Return 4 if buff is the keyword "Semi-continuous" or one of its variants.
+  /// Return 5 if buff is the keyword "Sos" or one of its variants.
+  /// Return 6 if buff is the keyword "End" or one of its variants.
+  /// Return 0 otherwise.
+  int is_keyword(const char *buff) const;
+
+  /// Read a monomial of the objective function.
+  /// Return 1 if "subject to" or one of its variants has been read.
+  int read_monom_obj(FILE *fp, double *coeff, char **name, int *cnt, 
+		     char **obj_name, int *num_objectives, int *obj_starts);
+
+  /// Read a monomial of a constraint.
+  /// Return a positive number if the sense of the inequality has been 
+  /// read (see method is_sense() for the return code).
+  /// Return -1 otherwise.
+  int read_monom_row(FILE *fp, char *start_str, double *coeff, char **name, 
+		     int cnt_coeff) const;
+
+  /// Reallocate vectors related to number of coefficients.
+  void realloc_coeff(double **coeff, char ***colNames, int *maxcoeff) const;
+
+  /// Reallocate vectors related to rows.
+  void realloc_row(char ***rowNames, int **start, double **rhs, 
+		   double **rowlow, double **rowup, int *maxrow) const;
+    
+  /// Reallocate vectors related to columns.
+  void realloc_col(double **collow, double **colup, char **is_int,
+		   int *maxcol) const;
+
+  /// Read a constraint.
+  void read_row(FILE *fp, char *buff, double **pcoeff, char ***pcolNames, 
+		int *cnt_coeff, int *maxcoeff,
+		     double *rhs, double *rowlow, double *rowup, 
+		     int *cnt_row, double inf) const;
+
+  /** Check that current objective name and all row names are distinct
+      including row names obtained by adding "_low" for ranged constraints.
+      If there is a conflict in the names, they are replaced by default 
+      row names (see setDefaultRowNames()).
+
+      This method must not be called before 
+      setLpDataWithoutRowAndColNames() has been called, since access
+      to the indices of all the ranged constraints is required.
+
+      This method must not be called before 
+      setLpDataRowAndColNames() has been called, since access
+      to all the row names is required.
+  */
+  void checkRowNames();
+
+  /** Check that current column names are distinct.
+      If not, they are replaced by default 
+      column names (see setDefaultColNames()).
+
+      This method must not be called before 
+      setLpDataRowAndColNames() has been called, since access
+      to all the column names is required.
+  */
+  void checkColNames();
+
+};
+
+void
+CoinLpIOUnitTest(const std::string& lpDir);
+
+
+#endif