summaryrefslogtreecommitdiff
path: root/matching/include/phat/representations/heap_pivot_column.h
diff options
context:
space:
mode:
Diffstat (limited to 'matching/include/phat/representations/heap_pivot_column.h')
-rw-r--r--matching/include/phat/representations/heap_pivot_column.h126
1 files changed, 0 insertions, 126 deletions
diff --git a/matching/include/phat/representations/heap_pivot_column.h b/matching/include/phat/representations/heap_pivot_column.h
deleted file mode 100644
index 33cd07b..0000000
--- a/matching/include/phat/representations/heap_pivot_column.h
+++ /dev/null
@@ -1,126 +0,0 @@
-/* Copyright 2013 IST Austria
- Contributed by: Ulrich Bauer, Michael Kerber, Jan Reininghaus
-
- This file is part of PHAT.
-
- PHAT is free software: you can redistribute it and/or modify
- it under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- PHAT is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with PHAT. If not, see <http://www.gnu.org/licenses/>. */
-
-#pragma once
-
-#include <phat/helpers/misc.h>
-#include <phat/representations/abstract_pivot_column.h>
-
-namespace phat {
- class heap_column {
-
- protected:
- std::priority_queue< index > data;
-
- column temp_col;
- index inserts_since_last_prune;
-
- void prune()
- {
- temp_col.clear( );
- index max_index = pop_max_index( );
- while( max_index != -1 ) {
- temp_col.push_back( max_index );
- max_index = pop_max_index( );
- }
-
- for( index idx = 0; idx < (index)temp_col.size( ); idx++ )
- data.push( temp_col[ idx ] );
-
- inserts_since_last_prune = 0;
- }
-
- index pop_max_index()
- {
- if( data.empty( ) )
- return -1;
- else {
- index max_element = data.top( );
- data.pop();
- while( !data.empty( ) && data.top( ) == max_element ) {
- data.pop( );
- if( data.empty( ) )
- return -1;
- else {
- max_element = data.top( );
- data.pop( );
- }
- }
- return max_element;
- }
- }
-
- public:
- void init( const index total_size ) {
- inserts_since_last_prune = 0;
- clear();
- }
-
- void add_col( const column& col ) {
- for( index idx = 0; idx < (index) col.size(); idx++ )
- data.push( col[ idx ] );
- inserts_since_last_prune += col.size( );
- if( 2 * inserts_since_last_prune >( index ) data.size( ) )
- prune();
- }
-
- index get_max_index() {
- index max_element = pop_max_index( );
- if( max_element == -1 )
- return -1;
- else {
- data.push( max_element );
- return max_element;
- }
- }
-
- void get_col_and_clear( column& col ) {
- col.clear();
- index max_index = pop_max_index( );
- while( max_index != -1 ) {
- col.push_back( max_index );
- max_index = pop_max_index( );
- }
- std::reverse( col.begin(), col.end() );
- }
-
- bool is_empty() {
- return get_max_index() == -1;
- }
-
- void clear() {
- data = std::priority_queue< index >();
- }
-
- void remove_max() {
- pop_max_index();
- }
-
- void set_col( const column& col ) {
- clear();
- add_col( col );
- }
-
- void get_col( column& col ) {
- get_col_and_clear( col );
- add_col( col );
- }
- };
-
- typedef abstract_pivot_column< heap_column > heap_pivot_column;
-}