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-rw-r--r--hmap.h175
1 files changed, 85 insertions, 90 deletions
diff --git a/hmap.h b/hmap.h
index 84fc9ab..2392133 100644
--- a/hmap.h
+++ b/hmap.h
@@ -1,4 +1,4 @@
-#pragma warning(disable:4786)
+#pragma warning(disable:4786)
#ifndef hmap_h
#define hmap_h
@@ -17,105 +17,100 @@ template <class obj_type, class key_type>
class hmap
{
private:
- enum entry_type
- {
- ACTIVE, EMPTY, DELETED
- };
-
- struct hash_entry
- {
- obj_type element;
- key_type key;
- entry_type info;
-
- hash_entry( const obj_type &e = obj_type( ), const key_type &k = key_type( ), entry_type i = EMPTY ) : element( e ), key( k ), info( i )
- { }
- }
- ;
-
- int occupied;
-
- virtual bool isActive( int currentPos ) const;
- virtual void rehash( );
- virtual bool isPrime ( int n ) const;
- virtual int nextPrime( int n ) const;
- double maxOccupiedPercentage;
+ enum entry_type
+ {
+ ACTIVE, EMPTY, DELETED
+ };
+
+ struct hash_entry
+ {
+ obj_type element;
+ key_type key;
+ entry_type info;
+
+ hash_entry( const obj_type &e = obj_type( ), const key_type &k = key_type( ), entry_type i = EMPTY ) : element( e ), key( k ), info( i ) { }
+ };
+
+ int occupied;
+
+ virtual bool isActive( int currentPos ) const;
+ virtual void rehash( );
+ virtual bool isPrime ( int n ) const;
+ virtual int nextPrime( int n ) const;
+ double maxOccupiedPercentage;
protected:
- int lookups;
- unsigned int hash( const string &key ) const;
- vector<hash_entry> array;
+ int lookups;
+ unsigned int hash( const string &key ) const;
+ vector<hash_entry> array;
public:
- hmap( double moc );
-
- virtual int findPos ( const key_type &k );
- virtual void make_empty( );
- virtual void add_elem ( const obj_type &x, const key_type &k );
- virtual void del_elem ( const key_type &k );
- virtual obj_type get_elem ( const key_type &k );
-
- virtual void run_func( void (*func)(obj_type) );
- virtual void run_func( void (*func)(obj_type, void*), void* v_arg );
-
- // inline:
- void getSize()
- {
- int size = 0;
- for( int j = 0; j < array.size( ); j++ )
- if (array[ j ].info == ACTIVE)
- size++;
- return size;
- };
-
- int getLookups()
- {
- return lookups;
- };
-
- int getCapacity()
- {
- return array.size();
- };
-
- double getLambda()
- {
- return static_cast<double>(getSize())/static_cast<double>(getCapacity());
- }
-
- obj_type& operator[]( key_type &k )
- {
- return get_elem( k );
- }
+ hmap( double moc );
+
+ virtual int findPos ( const key_type &k );
+ virtual void make_empty( );
+ virtual void add_elem ( const obj_type &x, const key_type &k );
+ virtual void del_elem ( const key_type &k );
+ virtual obj_type get_elem ( const key_type &k );
+
+ virtual void run_func( void (*func)(obj_type) );
+ virtual void run_func( void (*func)(obj_type, void*), void* v_arg );
+
+ // inline:
+ void getSize()
+ {
+ int size = 0;
+ for( int j = 0; j < array.size( ); j++ )
+ if (array[ j ].info == ACTIVE)
+ size++;
+ return size;
+ };
+
+ int getLookups()
+ {
+ return lookups;
+ };
+
+ int getCapacity()
+ {
+ return array.size();
+ };
+
+ double getLambda()
+ {
+ return static_cast<double>(getSize())/static_cast<double>(getCapacity());
+ }
+
+ obj_type& operator[]( key_type &k )
+ {
+ return get_elem( k );
+ }
};
template <class obj_type, class key_type>
-class linearhmap : public hmap<obj_type, key_type>
-{
+class linearhmap : public hmap<obj_type, key_type> {
public:
- linearhmap(double moc) : hmap<obj_type, key_type>(moc)
- {}
- ;
-
- virtual int findPos( const key_type &k )
- {
- int collisionNum = 0;
- int currentPos = hash( k ) % hmap<obj_type, key_type>::array.size( );
- hmap<obj_type, key_type>::lookups++;
-
- while( hmap<obj_type, key_type>::array[ currentPos ].info != hmap<obj_type, key_type>::EMPTY &&
- hmap<obj_type, key_type>::array[ currentPos ].key != k )
- {
- hmap<obj_type, key_type>::lookups ++;
- currentPos++;
-
- if( currentPos >= hmap<obj_type, key_type>::array.size( ) )
- currentPos -= hmap<obj_type, key_type>::array.size( );
- }
-
- return currentPos;
+ linearhmap(double moc) : hmap<obj_type, key_type>(moc) {};
+
+ virtual int findPos( const key_type &k )
+ {
+ int collisionNum = 0;
+ int currentPos = hash( k ) % array.size( );
+ lookups++;
+
+ while( array[ currentPos ].info != EMPTY &&
+ array[ currentPos ].key != k )
+ {
+ lookups ++;
+ currentPos++;
+
+ if( currentPos >= array.size( ) )
+ currentPos -= array.size( );
}
+
+ return currentPos;
+ }
};
#include "hmap.cpp"