DataConsistencyKey.h

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// SPDX-FileCopyrightText: Deutsches Elektronen-Synchrotron DESY, MSK, ChimeraTK Project <chimeratk-support@desy.de>
// SPDX-License-Identifier: LGPL-3.0-or-later
#pragma once
 
#include <compare>
#include <cstdint>
 
namespace ChimeraTK::async {
 
  /********************************************************************************************************************/
 
  class DataConsistencyKey {
   public:
    using BaseType = uint64_t;
 
    DataConsistencyKey(const DataConsistencyKey& other) = default;
    DataConsistencyKey& operator=(const DataConsistencyKey& other) = default;
 
    explicit DataConsistencyKey(BaseType value) : _value(value) {}
 
    explicit operator BaseType() const { return _value; }
 
    std::strong_ordering operator<=>(const DataConsistencyKey&) const = default;
    std::strong_ordering operator<=>(BaseType other) const { return operator<=>(DataConsistencyKey(other)); }
 
    DataConsistencyKey& operator++() {
      ++_value;
      return *this;
    }
 
    DataConsistencyKey operator++(int) {
      DataConsistencyKey tmp = *this;
      ++_value;
      return tmp;
    }
 
    BaseType operator+(const DataConsistencyKey& other) const { return _value + other._value; }
    BaseType operator+(const BaseType& other) const { return _value + other; }
 
    BaseType operator-(const DataConsistencyKey& other) const { return _value - other._value; }
    BaseType operator-(const BaseType& other) const { return _value - other; }
 
   private:
    BaseType _value;
  };
 
  /********************************************************************************************************************/
 
} // namespace ChimeraTK::async