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+/* 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>
+
+namespace phat {
+ class vector_column_rep {
+
+ protected:
+
+ std::vector<index> indices;
+
+ thread_local_storage< column >* temp_column_buffer;
+
+ public:
+
+ typedef vector_column_rep Self;
+
+ void offer_thread_local_storage(thread_local_storage< column >* tls) {
+ temp_column_buffer=tls;
+ }
+
+ std::vector<index>::const_iterator begin() const {
+ return indices.begin();
+ }
+
+ std::vector<index>::const_iterator end() const {
+ return indices.end();
+ }
+
+ // replaces(!) content of 'col' with boundary of given index
+ void _get_col( column& col ) const {
+ col.clear();
+ col = indices;
+ }
+ void _set_col( const column& col ) {
+ indices = col;
+ }
+
+ // true iff boundary of given idx is empty
+ bool _is_empty() const {
+ return indices.empty();
+ }
+
+ // largest row index of given column idx (new name for lowestOne())
+ index _get_max_index() const {
+ return indices.empty() ? -1 : indices.back();
+ }
+
+ // removes the maximal index of a column
+ void _remove_max() {
+ indices.pop_back();
+ }
+
+ // clears given column
+ void _clear() {
+ indices.clear();
+ }
+
+ // syncronizes all data structures (essential for openmp stuff)
+ void _sync() {}
+
+ // adds column 'source' to column 'target'
+ void _add_to( const Self& source_col ) {
+ column& temp_col = (*temp_column_buffer)();
+
+ size_t new_size = source_col.indices.size() + this->indices.size();
+
+ if (new_size > temp_col.size()) temp_col.resize(new_size);
+
+ std::vector<index>::iterator col_end = std::set_symmetric_difference( this->indices.begin(), this->indices.end(),
+ source_col.indices.begin(), source_col.indices.end(),
+ temp_col.begin() );
+ temp_col.erase(col_end, temp_col.end());
+
+
+ this->indices.swap(temp_col);
+ }
+
+ // finalizes given column
+ void _finalize() {
+ column(indices.begin(), indices.end()).swap(indices);
+ }
+ };
+}