Maddie Slockbower
366774622b
- Updated License to GPL v3.0 - Added New Math Nodes - Prototype Rendering Code for Debugging Functions
60 lines
1.9 KiB
C++
60 lines
1.9 KiB
C++
// =====================================================================================================================
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// open-cpp-utils, an open-source cpp library with data structures that extend the STL.
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// Copyright (C) 2024 Medusa Slockbower
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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// =====================================================================================================================
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#ifndef OPEN_CPP_UTILS_UNIQUE_ID_H
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#define OPEN_CPP_UTILS_UNIQUE_ID_H
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#include <cstdint>
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namespace open_cpp_utils
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{
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// Internal function for incrementing an id associated with a type
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template<typename Base> uint64_t _increment_id()
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{
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static uint64_t current = 0;
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return current++;
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}
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/**
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* \brief Generate a unique id for a type given a base type
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* \tparam Base Base type for id categorization
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* \tparam Type Type for id generation
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* \return Generated ID for Type and Base combination
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*
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* Example:
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*
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* unique_id<void, int>() = 0
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* unique_id<void, unsigned int>() = 1
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*
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* unique_id<int, int>() = 0
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*/
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template<typename Base, typename Type> uint64_t unique_id()
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{
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static bool initialized = false;
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static uint64_t id = 0;
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if(initialized) return id;
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initialized = true;
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return id = _increment_id<Base>();
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}
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}
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#endif // OPEN_CPP_UTILS_UNIQUE_ID_H
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