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 // ct_lvtshr_uniqueid.h                                    -*-C++-*-
 
 /*
 // Copyright 2023 Codethink Ltd <codethink@codethink.co.uk>
 // SPDX-License-Identifier: Apache-2.0
 //
 // 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.
 */
 
 #ifndef INCLUDED_CT_LVTSHR_UNIQUEID
 #define INCLUDED_CT_LVTSHR_UNIQUEID
 
 #include <lvtshr_export.h>
 
 #include <ct_lvtshr_graphenums.h>
 
 #include <cstddef>
 #include <ostream>
 
 namespace Codethink::lvtshr {
 
 class LVTSHR_EXPORT UniqueId {
   public:
     using RecordNumberType = long long;
 
     struct LVTSHR_EXPORT Hash {
         std::size_t operator()(UniqueId const& id) const noexcept;
     };
 
     UniqueId(DiagramType type, RecordNumberType recordNumber);
     bool operator==(UniqueId const& other) const;
     [[nodiscard]] DiagramType diagramType() const;
     [[nodiscard]] RecordNumberType recordNumber() const;
 
     LVTSHR_EXPORT friend std::ostream& operator<<(std::ostream& stream, const UniqueId& uid);
 
   private:
     DiagramType m_diagramType;
     RecordNumberType m_recordNumber;
 };
 
 } // namespace Codethink::lvtshr
 
 #endif