5 files changed, 23 insertions, 0 deletions
diff --git a/include/phat/representations/abstract_pivot_column.h b/include/phat/representations/abstract_pivot_column.h
index fbee368..e16d7a5 100644
--- a/include/phat/representations/abstract_pivot_column.h
+++ b/include/phat/representations/abstract_pivot_column.h
@@ -94,6 +94,8 @@ namespace phat {
         void _set_col( index idx, const column& col  ) { is_pivot_col( idx ) ? get_pivot_col().set_col( col ) : Base::_set_col( idx, col ); }
 
         void _remove_max( index idx ) {	is_pivot_col( idx ) ? get_pivot_col().remove_max() : Base::_remove_max( idx ); }
+        
+        void finalize( index idx ) { Base::_finalize( idx ); }
     };
 }
 
diff --git a/include/phat/representations/vector_heap.h b/include/phat/representations/vector_heap.h
index 78501f0..db0420f 100644
--- a/include/phat/representations/vector_heap.h
+++ b/include/phat/representations/vector_heap.h
@@ -160,5 +160,11 @@ namespace phat {
             if( 2 * inserts_since_last_prune[ target ] > ( index )matrix[ target ].size() )
                 _prune( target );
         }
+        
+        // finalizes given column
+        void _finalize( index idx ) {
+            _prune( idx );
+        }
+
     };
 }
diff --git a/include/phat/representations/vector_list.h b/include/phat/representations/vector_list.h
index fdd5818..ca0b5b8 100644
--- a/include/phat/representations/vector_list.h
+++ b/include/phat/representations/vector_list.h
@@ -93,5 +93,9 @@ namespace phat {
                                            source_col.begin(), source_col.end(),
                                            std::back_inserter( target_col ) );
         }
+        
+        // finalizes given column
+        void _finalize( index idx ) {
+        }
     };
 }
diff --git a/include/phat/representations/vector_set.h b/include/phat/representations/vector_set.h
index ea6df09..6878a27 100644
--- a/include/phat/representations/vector_set.h
+++ b/include/phat/representations/vector_set.h
@@ -90,5 +90,10 @@ namespace phat {
 					col.erase( result.first );
 			}
         }
+        
+        // finalizes given column
+        void _finalize( index idx ) {
+        }
+
     };
 }
diff --git a/include/phat/representations/vector_vector.h b/include/phat/representations/vector_vector.h
index 15dbfb1..f111d6b 100644
--- a/include/phat/representations/vector_vector.h
+++ b/include/phat/representations/vector_vector.h
@@ -97,5 +97,11 @@ namespace phat {
             
             target_col.swap(temp_col);
         }
+        
+        // finalizes given column
+        void _finalize( index idx ) {
+            column& col = matrix[ idx ];
+            column(col.begin(), col.end()).swap(col);
+        }
     };
 }