C11-可变参数模板-Variadic Templates可变参数模板

/**************************************************************************************
	*************************     1.Variadic Templates可变参数模板    *************************
	***************************************************************************************/
namespace BaseFeatures_NameSpace
{
	//此处一定要有一个无参的ShowInformation()定义或者声明在可变参数模板版的前面
	//该函数结束编译期递归，在解包参数为0时调用
	void ShowInformation()
	{
		cout << endl;
	}

	/*
	用法:
	hello();
	template<typename T,typename... args>
	hello(T InParam1,Types&... args)
	{
	hello(...args);//递归
	}
	*/
	template<typename T, typename... Types>
	void ShowInformation(const T& firstArg, const Types&... args)
	{
		cout << "编译期递归中" << endl;
		cout << firstArg << endl;
		ShowInformation(args...);
	}


	
	template<typename... Types>
	void ShowInformation(const Types&... args)
	{
		cout << "编译期递归中，我比较没存在感，所以有楼上就不调我" << endl;
		ShowInformation(args...);
	}

	template<typename T>
	void ShowInformation(const T& firstArg)
	{
		cout << "偶是非递归的额外测试，测试能不能拦截下来递归，但是失败了" << firstArg << endl;
	}

	/**************************************************************************************
	************************************     1.1实例    ************************************
	***************************************************************************************/
	//利用重载解决问题
	//数据解析成对象
	class VarTemplateExample_Data
	{
		int m_iID;
		int m_iData;
	};
	class VarTemplateExample
	{
		
	public:
	
		const char* m_strInstanceName;
		int m_InstanceID;
		//vector<float> m_dataContainer;
		vector<VarTemplateExample_Data> m_dataContainer;

		template< typename... Types>
		void ResolveInformation(const char* In_strInstanceName,int In_ID,  Types&... args)
		{
			
			cout << "ResolveInformation (const char* In_strInstanceName, T a, const Types&... args)" << endl;

			m_strInstanceName = In_strInstanceName;
			m_InstanceID = In_ID;

			ResolveInformation(args...);
		}
		

		template<typename... Types>
		void ResolveInformation(int In_ID, Types&... args)
		{
			const char* name = "DefaultName";
			cout << "ResolveInformation(int In_ID,const Types&... args)" << endl;
			ResolveInformation(name, In_ID, args...);
		}

		template<typename... Types>
		void ResolveInformation(VarTemplateExample_Data& Obj,  Types&... args)
		{
			
			cout << "ResolveInformationVarTemplateExample_Data Obj, const Types&... args" << endl;
			m_dataContainer.push_back(Obj);
			ResolveInformation( args...);
		}
		//只有通过特别指定的方式才能被调用
		template<typename T>
		void ResolveInformation(VarTemplateExample_Data& firstArg)
		{
			cout << "ResolveInformation(const T& firstArg)" << endl;
			cout << "偶是非递归的额外测试，测试能不能拦截下来递归，但是失败了"  << endl;
		}

		void ResolveInformation()
		{
			cout << endl;
		}
	private:

	};
}
{
			BaseFeatures_NameSpace::VarTemplateExample temp;
			BaseFeatures_NameSpace::VarTemplateExample temp1;
			BaseFeatures_NameSpace::VarTemplateExample temp2;
			BaseFeatures_NameSpace::VarTemplateExample temp3;
			BaseFeatures_NameSpace::VarTemplateExample_Data obj1;
			BaseFeatures_NameSpace::VarTemplateExample_Data obj2;
			BaseFeatures_NameSpace::VarTemplateExample_Data obj3;
			BaseFeatures_NameSpace::VarTemplateExample_Data obj4;
			int i = 0;
			const char* str = "Test1";
			SHOW_SMALL_FUNCTION_BLOCK_LIST_TIPS("不同参数个数的")
			temp.ResolveInformation(str,1,obj1,obj2);
			std::cout << endl; std::cout << endl;

			temp1.ResolveInformation( 1, obj1, obj2);
			std::cout << endl; std::cout << endl;

			temp2.ResolveInformation( obj1, obj2);
			std::cout << endl; std::cout << endl;

			//只有通过这种方式才会被调用
			temp3.ResolveInformation<BaseFeatures_NameSpace::VarTemplateExample_Data&>(obj1);
			std::cout << endl; std::cout << endl;

		}