015cbff93d
std::all_of becomes constexpr in C++20. I'm not sure it results in better performance. Found with useStlAlgorithm Signed-off-by: Rosen Penev <rosenp@gmail.com>
61 lines
1.5 KiB
C++
61 lines
1.5 KiB
C++
/*
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* Copyright 2003-2020 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "AndSongFilter.hxx"
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#include <algorithm>
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ISongFilterPtr
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AndSongFilter::Clone() const noexcept
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{
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auto result = std::make_unique<AndSongFilter>();
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for (const auto &i : items)
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result->items.emplace_back(i->Clone());
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return result;
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}
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std::string
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AndSongFilter::ToExpression() const noexcept
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{
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auto i = items.begin();
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const auto end = items.end();
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if (std::next(i) == end)
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return (*i)->ToExpression();
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std::string e("(");
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e += (*i)->ToExpression();
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for (++i; i != end; ++i) {
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e += " AND ";
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e += (*i)->ToExpression();
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}
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e.push_back(')');
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return e;
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}
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bool
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AndSongFilter::Match(const LightSong &song) const noexcept
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{
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return std::all_of(items.begin(), items.end(), [&song](const auto &i) { return i->Match(song); });
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}
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