47 lines
934 B
C++
47 lines
934 B
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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namespace base {
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template <typename Enum>
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class enum_mask {
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using Type = std::uint32_t;
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public:
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static_assert(static_cast<int>(Enum::kCount) <= 32, "We have only 32 bit.");
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enum_mask() = default;
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enum_mask(Enum value) : _value(ToBit(value)) {
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}
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enum_mask added(enum_mask other) const {
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auto result = *this;
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result.set(other);
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return result;
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}
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void set(enum_mask other) {
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_value |= other._value;
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}
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bool test(Enum value) const {
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return _value & ToBit(value);
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}
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explicit operator bool() const {
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return _value != 0;
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}
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private:
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inline static Type ToBit(Enum value) {
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return 1 << static_cast<Type>(value);
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}
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Type _value = 0;
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};
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} // namespace base
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