EvtStringHash< T > Class Template Reference

#include <EvtStringHash.hh>

Public Member Functions
	EvtStringHash (int size)
void	add (const std::string &str, T *data)
T *	get (const std::string &str)
	~EvtStringHash ()

Detailed Description

template<class T>
class EvtStringHash< T >

Definition at line 11 of file EvtStringHash.hh.

Constructor & Destructor Documentation

EvtStringHash()

template<class T>

EvtStringHash< T >::EvtStringHash ( int size )

inline

Definition at line 28 of file EvtStringHash.hh.

                                                             {
 
  _size = size;
 
  typedef std::string** EvtStringPtrPtr;
  typedef T**           TPtrPtr;
 
  _strings = new EvtStringPtrPtr[_size];
  _data    = new TPtrPtr[_size];
  _entries = new int[_size];
 
  int i;
 
  for ( i = 0; i < _size; i++ ) { _entries[i] = 0; }
}

~EvtStringHash()

template<class T>

EvtStringHash< T >::~EvtStringHash ( )

inline

Definition at line 44 of file EvtStringHash.hh.

                                                    {
 
  int i;
  for ( i = 0; i < _size; i++ )
  {
    int j;
    for ( j = 0; j < _entries[i]; j++ ) { delete _strings[i][j]; }
    if ( _entries[i] > 0 )
    {
      delete[] _strings[i];
      delete[] _data[i];
    }
  }
 
  delete[] _strings;
  delete[] _data;
  delete[] _entries;
}

Member Function Documentation

add()

template<class T>

void EvtStringHash< T >::add ( const std::string & str, T * data )

inline

Definition at line 63 of file EvtStringHash.hh.

                                                                             {
 
  int ihash = hash( str );
 
  typedef std::string* EvtStringPtr;
  typedef T*           TPtr;
 
  std::string** newstrings = new EvtStringPtr[_entries[ihash] + 1];
  T**           newdata    = new TPtr[_entries[ihash] + 1];
 
  int i;
 
  for ( i = 0; i < _entries[ihash]; i++ )
  {
    newstrings[i] = _strings[ihash][i];
    newdata[i]    = _data[ihash][i];
  }
 
  newstrings[_entries[ihash]]      = new std::string;
  *( newstrings[_entries[ihash]] ) = str;
  newdata[_entries[ihash]]         = data;
 
  if ( _entries[ihash] != 0 )
  {
    delete[] _strings[ihash];
    delete[] _data[ihash];
  }
 
  _entries[ihash]++;
 
  _strings[ihash] = newstrings;
  _data[ihash]    = newdata;
}

get()

template<class T>

T * EvtStringHash< T >::get ( const std::string & str )

inline

Definition at line 97 of file EvtStringHash.hh.

                                                                  {
 
  int ihash = hash( str );
 
  int i;
 
  for ( i = 0; i < _entries[ihash]; i++ )
  {
    if ( *( _strings[ihash][i] ) == str ) return _data[ihash][i];
  }
 
  return 0;
}

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The documentation for this class was generated from the following file:

• EvtStringHash.hh