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test variadic template
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‎c++/Variadic_Template/ConsoleApplication1.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.0.32014.148
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ConsoleApplication1", "ConsoleApplication1\ConsoleApplication1.vcxproj", "{1017F537-BB53-447F-B7A2-5D59D2C28AE6}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|x64 = Debug|x64
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Debug|x86 = Debug|x86
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Release|x64 = Release|x64
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Release|x86 = Release|x86
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{1017F537-BB53-447F-B7A2-5D59D2C28AE6}.Debug|x64.ActiveCfg = Debug|x64
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{1017F537-BB53-447F-B7A2-5D59D2C28AE6}.Debug|x64.Build.0 = Debug|x64
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{1017F537-BB53-447F-B7A2-5D59D2C28AE6}.Debug|x86.ActiveCfg = Debug|Win32
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{1017F537-BB53-447F-B7A2-5D59D2C28AE6}.Debug|x86.Build.0 = Debug|Win32
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{1017F537-BB53-447F-B7A2-5D59D2C28AE6}.Release|x64.ActiveCfg = Release|x64
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{1017F537-BB53-447F-B7A2-5D59D2C28AE6}.Release|x64.Build.0 = Release|x64
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{1017F537-BB53-447F-B7A2-5D59D2C28AE6}.Release|x86.ActiveCfg = Release|Win32
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{1017F537-BB53-447F-B7A2-5D59D2C28AE6}.Release|x86.Build.0 = Release|Win32
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {2976741D-4C08-4452-B939-746CC153BC36}
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EndGlobalSection
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EndGlobal

‎c++/Variadic_Template/ConsoleApplication1/ConsoleApplication1.cpp‎

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// ConsoleApplication1.cpp : This file contains the 'main' function. Program execution begins and ends there.
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//
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#include <iostream>
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class A {
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public:
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A(A* ptr) {
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std::cout << "called 1" << std::endl;
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}
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template<typename... TArgs>
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A(void *p, TArgs&&... args) {
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std::cout << "called 2" << std::endl;
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}
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template< typename... TArgs, typename = std::enable_if_t<not std::is_same_v<A*, TArgs...>>>
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A(TArgs&&... args) {
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std::cout << "called 3" << std::endl;
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}
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};
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int main()
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{
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int p1 = 5;
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int p2 = 6;
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auto a = new A(&p1);
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new A(a);
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new A(p1);
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new A(p2);
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new A(nullptr,p1, p2);
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}
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// Run program: Ctrl + F5 or Debug > Start Without Debugging menu
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// Debug program: F5 or Debug > Start Debugging menu
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// Tips for Getting Started:
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// 1. Use the Solution Explorer window to add/manage files
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// 2. Use the Team Explorer window to connect to source control
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// 3. Use the Output window to see build output and other messages
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// 4. Use the Error List window to view errors
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// 5. Go to Project > Add New Item to create new code files, or Project > Add Existing Item to add existing code files to the project
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// 6. In the future, to open this project again, go to File > Open > Project and select the .sln file

‎c++/Variadic_Template/ConsoleApplication1/ConsoleApplication1.vcxproj‎

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<VCProjectVersion>16.0</VCProjectVersion>
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<Keyword>Win32Proj</Keyword>
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<ProjectGuid>{1017f537-bb53-447f-b7a2-5d59d2c28ae6}</ProjectGuid>
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<RootNamespace>ConsoleApplication1</RootNamespace>
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