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diff --git a/newstructure/thirdparty/linux/include/coin/CoinModelUseful.hpp b/newstructure/thirdparty/linux/include/coin/CoinModelUseful.hpp
new file mode 100644
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--- /dev/null
+++ b/newstructure/thirdparty/linux/include/coin/CoinModelUseful.hpp
@@ -0,0 +1,441 @@
+/* $Id: CoinModelUseful.hpp 1416 2011-04-17 09:57:29Z stefan $ */
+// Copyright (C) 2005, International Business Machines
+// Corporation and others.  All Rights Reserved.
+// This code is licensed under the terms of the Eclipse Public License (EPL).
+
+#ifndef CoinModelUseful_H
+#define CoinModelUseful_H
+
+
+#include <cstdlib>
+#include <cmath>
+#include <cassert>
+#include <cfloat>
+#include <cstring>
+#include <cstdio>
+#include <iostream>
+
+
+#include "CoinPragma.hpp"
+
+/**
+   This is for various structures/classes needed by CoinModel.
+
+   CoinModelLink
+   CoinModelLinkedList
+   CoinModelHash
+*/
+/// for going through row or column
+
+class CoinModelLink {
+  
+public:
+  /**@name Constructors, destructor */
+   //@{
+   /** Default constructor. */
+   CoinModelLink();
+   /** Destructor */
+   ~CoinModelLink();
+   //@}
+
+   /**@name Copy method */
+   //@{
+   /** The copy constructor. */
+   CoinModelLink(const CoinModelLink&);
+  /// =
+   CoinModelLink& operator=(const CoinModelLink&);
+   //@}
+
+   /**@name Sets and gets method */
+   //@{
+  /// Get row
+  inline int row() const
+  { return row_;}
+  /// Get column
+  inline int column() const
+  { return column_;}
+  /// Get value
+  inline double value() const
+  { return value_;}
+  /// Get value
+  inline double element() const
+  { return value_;}
+  /// Get position
+  inline int position() const
+  { return position_;}
+  /// Get onRow
+  inline bool onRow() const
+  { return onRow_;}
+  /// Set row
+  inline void setRow(int row)
+  { row_=row;}
+  /// Set column
+  inline void setColumn(int column)
+  { column_=column;}
+  /// Set value
+  inline void setValue(double value)
+  { value_=value;}
+  /// Set value
+  inline void setElement(double value)
+  { value_=value;}
+  /// Set position
+  inline void setPosition(int position)
+  { position_=position;}
+  /// Set onRow
+  inline void setOnRow(bool onRow)
+  { onRow_=onRow;}
+   //@}
+
+private:
+  /**@name Data members */
+  //@{
+  /// Row
+  int row_;
+  /// Column
+  int column_;
+  /// Value as double
+  double value_;
+  /// Position in data
+  int position_;
+  /// If on row chain
+  bool onRow_;
+  //@}
+};
+
+/// for linked lists
+// for specifying triple
+typedef struct {
+  // top bit is nonzero if string
+  // rest is row
+  unsigned int row;
+  //CoinModelRowIndex row;
+  int column;
+  double value; // If string then index into strings
+} CoinModelTriple;
+inline int rowInTriple(const CoinModelTriple & triple)
+{ return triple.row&0x7fffffff;}
+inline void setRowInTriple(CoinModelTriple & triple,int iRow)
+{ triple.row = iRow|(triple.row&0x80000000);}
+inline bool stringInTriple(const CoinModelTriple & triple)
+{ return (triple.row&0x80000000)!=0;}
+inline void setStringInTriple(CoinModelTriple & triple,bool string)
+{ triple.row = (string ? 0x80000000 : 0)|(triple.row&0x7fffffff);}
+inline void setRowAndStringInTriple(CoinModelTriple & triple,
+				    int iRow,bool string)
+{ triple.row = (string ? 0x80000000 : 0)|iRow;}
+/// for names and hashing
+// for hashing
+typedef struct {
+  int index, next;
+} CoinModelHashLink;
+
+/* Function type.  */
+typedef double (*func_t) (double);
+
+/// For string evaluation
+/* Data type for links in the chain of symbols.  */
+struct symrec
+{
+  char *name;  /* name of symbol */
+  int type;    /* type of symbol: either VAR or FNCT */
+  union
+  {
+    double var;      /* value of a VAR */
+    func_t fnctptr;  /* value of a FNCT */
+  } value;
+  struct symrec *next;  /* link field */
+};
+     
+typedef struct symrec symrec;
+
+class CoinYacc {
+private:
+  CoinYacc(const CoinYacc& rhs);
+  CoinYacc& operator=(const CoinYacc& rhs);
+
+public:
+  CoinYacc() : symtable(NULL), symbuf(NULL), length(0), unsetValue(0) {}
+  ~CoinYacc()
+  {
+    if (length) {
+      free(symbuf);
+      symbuf = NULL;
+    }
+    symrec* s = symtable;
+    while (s) {
+      free(s->name);
+      symtable = s;
+      s = s->next;
+      free(symtable);
+    }
+  }
+    
+public:
+  symrec * symtable;
+  char * symbuf;
+  int length;
+  double unsetValue;
+};
+
+class CoinModelHash {
+  
+public:
+  /**@name Constructors, destructor */
+  //@{
+  /** Default constructor. */
+  CoinModelHash();
+  /** Destructor */
+  ~CoinModelHash();
+  //@}
+  
+  /**@name Copy method */
+  //@{
+  /** The copy constructor. */
+  CoinModelHash(const CoinModelHash&);
+  /// =
+  CoinModelHash& operator=(const CoinModelHash&);
+  //@}
+
+  /**@name sizing (just increases) */
+  //@{
+  /// Resize hash (also re-hashs)
+  void resize(int maxItems,bool forceReHash=false);
+  /// Number of items i.e. rows if just row names
+  inline int numberItems() const
+  { return numberItems_;}
+  /// Set number of items
+  void setNumberItems(int number);
+  /// Maximum number of items
+  inline int maximumItems() const
+  { return maximumItems_;}
+  /// Names
+  inline const char *const * names() const
+  { return names_;}
+  //@}
+
+  /**@name hashing */
+  //@{
+  /// Returns index or -1
+  int hash(const char * name) const;
+  /// Adds to hash
+  void addHash(int index, const char * name);
+  /// Deletes from hash
+  void deleteHash(int index);
+  /// Returns name at position (or NULL)
+  const char * name(int which) const;
+  /// Returns non const name at position (or NULL)
+  char * getName(int which) const;
+  /// Sets name at position (does not create)
+  void setName(int which,char * name ) ;
+  /// Validates
+  void validateHash() const;
+private:
+  /// Returns a hash value
+  int hashValue(const char * name) const;
+public:
+  //@}
+private:
+  /**@name Data members */
+  //@{
+  /// Names
+  char ** names_;
+  /// hash
+  CoinModelHashLink * hash_;
+  /// Number of items 
+  int numberItems_;
+  /// Maximum number of items
+  int maximumItems_;
+  /// Last slot looked at
+  int lastSlot_;
+  //@}
+};
+/// For int,int hashing
+class CoinModelHash2 {
+  
+public:
+  /**@name Constructors, destructor */
+  //@{
+  /** Default constructor. */
+  CoinModelHash2();
+  /** Destructor */
+  ~CoinModelHash2();
+  //@}
+  
+  /**@name Copy method */
+  //@{
+  /** The copy constructor. */
+  CoinModelHash2(const CoinModelHash2&);
+  /// =
+  CoinModelHash2& operator=(const CoinModelHash2&);
+  //@}
+
+  /**@name sizing (just increases) */
+  //@{
+  /// Resize hash (also re-hashs)
+  void resize(int maxItems, const CoinModelTriple * triples,bool forceReHash=false);
+  /// Number of items
+  inline int numberItems() const
+  { return numberItems_;}
+  /// Set number of items
+  void setNumberItems(int number);
+  /// Maximum number of items
+  inline int maximumItems() const
+  { return maximumItems_;}
+  //@}
+
+  /**@name hashing */
+  //@{
+  /// Returns index or -1
+  int hash(int row, int column, const CoinModelTriple * triples) const;
+  /// Adds to hash
+  void addHash(int index, int row, int column, const CoinModelTriple * triples);
+  /// Deletes from hash
+  void deleteHash(int index, int row, int column);
+private:
+  /// Returns a hash value
+  int hashValue(int row, int column) const;
+public:
+  //@}
+private:
+  /**@name Data members */
+  //@{
+  /// hash
+  CoinModelHashLink * hash_;
+  /// Number of items 
+  int numberItems_;
+  /// Maximum number of items
+  int maximumItems_;
+  /// Last slot looked at
+  int lastSlot_;
+  //@}
+};
+class CoinModelLinkedList {
+  
+public:
+  /**@name Constructors, destructor */
+  //@{
+  /** Default constructor. */
+  CoinModelLinkedList();
+  /** Destructor */
+  ~CoinModelLinkedList();
+  //@}
+  
+  /**@name Copy method */
+  //@{
+  /** The copy constructor. */
+  CoinModelLinkedList(const CoinModelLinkedList&);
+  /// =
+  CoinModelLinkedList& operator=(const CoinModelLinkedList&);
+  //@}
+
+  /**@name sizing (just increases) */
+  //@{
+  /** Resize list - for row list maxMajor is maximum rows.
+  */
+  void resize(int maxMajor,int maxElements);
+  /** Create list - for row list maxMajor is maximum rows.
+      type 0 row list, 1 column list
+  */
+  void create(int maxMajor,int maxElements,
+              int numberMajor, int numberMinor,
+              int type,
+              int numberElements, const CoinModelTriple * triples);
+  /// Number of major items i.e. rows if just row links
+  inline int numberMajor() const
+  { return numberMajor_;}
+  /// Maximum number of major items i.e. rows if just row links
+  inline int maximumMajor() const
+  { return maximumMajor_;}
+  /// Number of elements
+  inline int numberElements() const
+  { return numberElements_;}
+  /// Maximum number of elements
+  inline int maximumElements() const
+  { return maximumElements_;}
+  /// First on free chain
+  inline int firstFree() const
+  { return first_[maximumMajor_];}
+  /// Last on free chain
+  inline int lastFree() const
+  { return last_[maximumMajor_];}
+  /// First on  chain
+  inline int first(int which) const
+  { return first_[which];}
+  /// Last on  chain
+  inline int last(int which) const
+  { return last_[which];}
+  /// Next array
+  inline const int * next() const
+  { return next_;}
+  /// Previous array
+  inline const int * previous() const
+  { return previous_;}
+  //@}
+
+  /**@name does work */
+  //@{
+  /** Adds to list - easy case i.e. add row to row list
+      Returns where chain starts
+  */
+  int addEasy(int majorIndex, int numberOfElements, const int * indices,
+              const double * elements, CoinModelTriple * triples,
+              CoinModelHash2 & hash);
+  /** Adds to list - hard case i.e. add row to column list
+  */
+  void addHard(int minorIndex, int numberOfElements, const int * indices,
+               const double * elements, CoinModelTriple * triples,
+               CoinModelHash2 & hash);
+  /** Adds to list - hard case i.e. add row to column list
+      This is when elements have been added to other copy
+  */
+  void addHard(int first, const CoinModelTriple * triples,
+               int firstFree, int lastFree,const int * nextOther);
+  /** Deletes from list - same case i.e. delete row from row list
+  */
+  void deleteSame(int which, CoinModelTriple * triples,
+                 CoinModelHash2 & hash, bool zapTriples);
+  /** Deletes from list - other case i.e. delete row from column list
+      This is when elements have been deleted from other copy
+  */
+  void updateDeleted(int which, CoinModelTriple * triples,
+                     CoinModelLinkedList & otherList);
+  /** Deletes one element from Row list
+  */
+  void deleteRowOne(int position, CoinModelTriple * triples,
+                 CoinModelHash2 & hash);
+  /** Update column list for one element when
+      one element deleted from row copy
+  */
+  void updateDeletedOne(int position, const CoinModelTriple * triples);
+  /// Fills first,last with -1
+  void fill(int first,int last);
+  /** Puts in free list from other list */
+  void synchronize(CoinModelLinkedList & other);
+  /// Checks that links are consistent
+  void validateLinks(const CoinModelTriple * triples) const;
+  //@}
+private:
+  /**@name Data members */
+  //@{
+  /// Previous - maximumElements long
+  int * previous_;
+  /// Next - maximumElements long
+  int * next_;
+  /// First - maximumMajor+1 long (last free element chain)
+  int * first_;
+  /// Last - maximumMajor+1 long (last free element chain)
+  int * last_;
+  /// Number of major items i.e. rows if just row links
+  int numberMajor_;
+  /// Maximum number of major items i.e. rows if just row links
+  int maximumMajor_;
+  /// Number of elements
+  int numberElements_;
+  /// Maximum number of elements
+  int maximumElements_;
+  /// 0 row list, 1 column list
+  int type_;
+  //@}
+};
+
+#endif