788e3b31e1
The "pure" and "const" attributes are not so well-defined, and a recent clang version implements an optimization which pushes the definition's boundary beyond what I believed it was. clang now assumes that functions declared "pure" cannot throw exceptions, even if they lack the "noexcept" specification. When compiled with this new clang version, MPD will crash randomly if an exception happens to get thrown by such as "pure" function (https://github.com/MusicPlayerDaemon/MPD/issues/41). This commit removes all such misplaced "pure" and "const" attributes, closing #41.
78 lines
1.8 KiB
C++
78 lines
1.8 KiB
C++
/*
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* Copyright 2003-2017 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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#ifndef MPD_CONFIG_PARAM_HXX
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#define MPD_CONFIG_PARAM_HXX
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#include "check.h"
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#include "Compiler.h"
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#include <string>
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class AllocatedPath;
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struct ConfigParam {
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/**
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* The next ConfigParam with the same name. The destructor
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* deletes the whole chain.
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*/
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ConfigParam *next;
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std::string value;
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int line;
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/**
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* This flag is false when nobody has queried the value of
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* this option yet.
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*/
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bool used;
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explicit ConfigParam(int _line=-1)
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:next(nullptr), line(_line), used(false) {}
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gcc_nonnull_all
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ConfigParam(const char *_value, int _line=-1);
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ConfigParam(const ConfigParam &) = delete;
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~ConfigParam();
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ConfigParam &operator=(const ConfigParam &) = delete;
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/**
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* Determine if this is a "null" instance, i.e. an empty
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* object that was synthesized and not loaded from a
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* configuration file.
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*/
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bool IsNull() const {
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return line < 0;
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}
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/**
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* Parse the value as a path. If there is a tilde prefix, it
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* is expanded.
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*
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* Throws #std::runtime_error on error.
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*/
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AllocatedPath GetPath() const;
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};
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#endif
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