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/*
* Copyright 2003-2021 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_TAG_MASK_HXX
#define MPD_TAG_MASK_HXX
#include "Type.h"
#include <cstdint>
class TagMask {
typedef uint_least32_t mask_t;
mask_t value;
explicit constexpr TagMask(uint_least32_t _value) noexcept
:value(_value) {}
public:
TagMask() = default;
constexpr TagMask(TagType tag) noexcept
:value(mask_t(1) << mask_t(tag)) {}
static constexpr TagMask None() noexcept {
return TagMask(mask_t(0));
}
static constexpr TagMask All() noexcept {
return ~None();
}
constexpr TagMask operator~() const noexcept {
return TagMask(~value);
}
constexpr TagMask operator&(TagMask other) const noexcept {
return TagMask(value & other.value);
}
constexpr TagMask operator|(TagMask other) const noexcept {
return TagMask(value | other.value);
}
constexpr TagMask operator^(TagMask other) const noexcept {
return TagMask(value ^ other.value);
}
TagMask &operator&=(TagMask other) noexcept {
value &= other.value;
return *this;
}
TagMask &operator|=(TagMask other) noexcept {
value |= other.value;
return *this;
}
TagMask &operator^=(TagMask other) noexcept {
value ^= other.value;
return *this;
}
constexpr bool TestAny() const noexcept {
return value != 0;
}
constexpr bool Test(TagType tag) const noexcept {
return (*this & tag).TestAny();
}
void Set(TagType tag) noexcept {
*this |= tag;
}
void Unset(TagType tag) noexcept {
*this &= ~TagMask(tag);
}
};
#endif
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