diff options
| author | ulrich.bauer@gmail.com <ulrich.bauer@gmail.com@8e3bb3c2-eed4-f18f-5264-0b6c94e6926d> | 2013-02-28 19:31:04 +0000 |
|---|---|---|
| committer | ulrich.bauer@gmail.com <ulrich.bauer@gmail.com@8e3bb3c2-eed4-f18f-5264-0b6c94e6926d> | 2013-02-28 19:31:04 +0000 |
| commit | c817c81d9d79fe77b0729216b7db5a7eab56a23c (patch) | |
| tree | 44fb7b6b7e41bdf3f555e843338797de86cc3589 /include/phat/representations/sparse_pivot_column.h | |
| parent | f32c606eee06544900ebe684daca14b8ac26231e (diff) | |
initial checkin
git-svn-id: https://phat.googlecode.com/svn/trunk@2 8e3bb3c2-eed4-f18f-5264-0b6c94e6926d
Diffstat (limited to 'include/phat/representations/sparse_pivot_column.h')
| -rw-r--r-- | include/phat/representations/sparse_pivot_column.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/include/phat/representations/sparse_pivot_column.h b/include/phat/representations/sparse_pivot_column.h new file mode 100644 index 0000000..c851a2b --- /dev/null +++ b/include/phat/representations/sparse_pivot_column.h @@ -0,0 +1,62 @@ +/* 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 sparse_column {
+
+ protected:
+ std::set< index > m_data;
+
+ public:
+ void init( const index total_size ) {
+ m_data.clear();
+ }
+
+ void add_column( const column& col ) {
+ for( index idx = 0; idx < (index) col.size(); idx++ )
+ add_index( col[ idx ] );
+ }
+
+ void add_index( const index idx ) {
+ std::pair< std::set< index >::iterator, bool > result = m_data.insert( idx );
+ if( result.second == false )
+ m_data.erase( result.first );
+ }
+
+ index max_index() {
+ return m_data.empty() ? -1 : *m_data.rbegin();
+ }
+
+ void get_column_and_clear( column& col ) {
+ col.clear();
+ col.assign( m_data.begin(), m_data.end() );
+ m_data.clear();
+ }
+
+ bool empty() {
+ return m_data.empty();
+ }
+ };
+
+ typedef abstract_pivot_column< sparse_column > sparse_pivot_column;
+}
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