1 files changed, 29 insertions, 1 deletions

diff --git a/src/hash.h b/src/hash.h
index 1ae68b8..c65b20d 100644
--- a/src/hash.h
+++ b/src/hash.h
@@ -141,6 +141,34 @@ public:
                 aValues = va.allocate( nCapacity );
         }
 
+        Hash( const Hash &src ) :
+                nCapacity( src.nCapacity ),
+                nFilled( 0 ),
+                nDeleted( 0 ),
+                bFilled( NULL ),
+                bDeleted( NULL ),
+                aKeys( NULL ),
+                aValues( NULL ),
+                aHashCodes( NULL )
+        {
+                nKeysSize = bitsToBytes( nCapacity );
+                bFilled = ca.allocate( nKeysSize );
+                bDeleted = ca.allocate( nKeysSize );
+                clearBits();
+
+                aHashCodes = ca.allocate( nCapacity );
+                aKeys = ka.allocate( nCapacity );
+                aValues = va.allocate( nCapacity );
+
+                for( uint32_t j = 0; j < nCapacity; j++ )
+                {
+                        if( src.isFilled( j ) )
+                        {
+                                insert( src.aKeys[j], src.aValues[j] );
+                        }
+                }
+        }
+
         virtual ~Hash()
         {
                 for( uint32_t j = 0; j < nCapacity; j++ )
@@ -502,7 +530,7 @@ protected:
                 ca.deallocate( aOldHashCodes, nOldCapacity );
         }
 
-        virtual bool isFilled( uint32_t loc )
+        virtual bool isFilled( uint32_t loc ) const
         {
                 return (bFilled[loc/32]&(1<<(loc%32)))!=0;
         }