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https://github.com/moses-smt/mosesdecoder.git
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97 lines
2.6 KiB
C++
97 lines
2.6 KiB
C++
// $Id$
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/***********************************************************************
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Moses - factored phrase-based language decoder
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Copyright (C) 2006 University of Edinburgh
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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***********************************************************************/
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#include <boost/functional/hash.hpp>
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#include "Bitmap.h"
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namespace Moses
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{
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TO_STRING_BODY(Bitmap);
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Bitmap::Bitmap(size_t size, const std::vector<bool>& initializer)
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:m_bitmap(initializer.begin(), initializer.end())
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{
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// The initializer may not be of the same length. Change to the desired
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// length. If we need to add any elements, initialize them to false.
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m_bitmap.resize(size, false);
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m_numWordsCovered = std::count(m_bitmap.begin(), m_bitmap.end(), true);
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// Find the first gap, and cache it.
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std::vector<char>::const_iterator first_gap = std::find(
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m_bitmap.begin(), m_bitmap.end(), false);
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m_firstGap = (
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(first_gap == m_bitmap.end()) ?
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NOT_FOUND : first_gap - m_bitmap.begin());
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}
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//! Create Bitmap of length size and initialise.
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Bitmap::Bitmap(size_t size)
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:m_bitmap(size, false)
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,m_firstGap(0)
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,m_numWordsCovered(0)
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{
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}
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//! Deep copy.
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Bitmap::Bitmap(const Bitmap ©)
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:m_bitmap(copy.m_bitmap)
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,m_firstGap(copy.m_firstGap)
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,m_numWordsCovered(copy.m_numWordsCovered)
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{
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}
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Bitmap::Bitmap(const Bitmap ©, const Range &range)
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:m_bitmap(copy.m_bitmap)
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,m_firstGap(copy.m_firstGap)
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,m_numWordsCovered(copy.m_numWordsCovered)
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{
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SetValueNonOverlap(range);
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}
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// for unordered_set in stack
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size_t Bitmap::hash() const
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{
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size_t ret = boost::hash_value(m_bitmap);
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return ret;
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}
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bool Bitmap::operator==(const Bitmap& other) const
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{
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return m_bitmap == other.m_bitmap;
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}
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// friend
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std::ostream& operator<<(std::ostream& out, const Bitmap& bitmap)
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{
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for (size_t i = 0 ; i < bitmap.m_bitmap.size() ; i++) {
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out << int(bitmap.GetValue(i));
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}
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return out;
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}
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} // namespace
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