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			41 lines
		
	
	
	
		
			1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			41 lines
		
	
	
	
		
			1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| #ifndef OPENMW_COMPONENTS_SERIALIZATION_SIZEACCUMULATOR_H
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| #define OPENMW_COMPONENTS_SERIALIZATION_SIZEACCUMULATOR_H
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| 
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| #include <cstddef>
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| #include <type_traits>
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| 
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| namespace Serialization
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| {
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|     class SizeAccumulator
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|     {
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|     public:
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|         SizeAccumulator() = default;
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| 
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|         SizeAccumulator(const SizeAccumulator&) = delete;
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| 
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|         std::size_t value() const { return mValue; }
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| 
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|         template <class Format, class T>
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|         void operator()(Format&& format, const T& value)
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|         {
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|             if constexpr (std::is_arithmetic_v<T> || std::is_enum_v<T>)
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|                 mValue += sizeof(T);
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|             else
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|                 format(*this, value);
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|         }
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| 
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|         template <class Format, class T>
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|         auto operator()(Format&& format, const T* data, std::size_t count)
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|         {
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|             if constexpr (std::is_arithmetic_v<T> || std::is_enum_v<T>)
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|                 mValue += count * sizeof(T);
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|             else
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|                 format(*this, data, count);
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|         }
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| 
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|     private:
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|         std::size_t mValue = 0;
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|     };
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| }
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| 
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| #endif
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