object-introspection/oi/EnumBitset.h

53 lines
1.3 KiB
C++

/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <bitset>
template <typename T, size_t N>
class EnumBitset {
private:
using BitsetType = std::bitset<N>;
public:
EnumBitset() = default;
EnumBitset(std::initializer_list<T> values) {
for (auto v : values) {
(*this)[v] = true;
}
}
constexpr bool operator[](T v) const {
return bitset[static_cast<size_t>(v)];
}
typename BitsetType::reference operator[](T v) {
return bitset[static_cast<size_t>(v)];
}
bool all() const noexcept {
return bitset.all();
}
bool any() const noexcept {
return bitset.any();
}
bool none() const noexcept {
return bitset.none();
}
private:
BitsetType bitset;
};