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How to enable C++17 in UE4 and Visual Studio 2017
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| Tested with UE 4.21 | |
| 1. Open your UE4 engine folder [Program files or something else you like]\Epic Games\UE_4.21\Engine\Source\Programs\UnrealBuildTool | |
| 2. Open file Epic Games\UE_4.21\Engine\Source\Programs\UnrealBuildTool\Platform\Windows\VCToolChain.cs | |
| 3. Find method void AppendCLArguments_CPP(CppCompileEnvironment CompileEnvironment, List<string> Arguments) | |
| 4. Add Arguments.Add("/std:c++17"); to begin of method | |
| 5. Open Epic Games\UE_4.21\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj in MSVS 2017 | |
| 6. Rebuild UnrealBuildTool | |
| 7. Open your project and rebuild it | |
| 8. Enjoy c++17 features |
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