namespace std has no member std::invoke_result_t

Question

I recently switched to VS Code from MSVS due to personal reasons, and my compiler is the latest Clang now.

I had some troubles (for example, I can't write typename O = ..., now I have to write typename O = typename ...), but all of them are small and easy to fix. Except one.

I don't know the reason, but compiler can't find std::invoke_result_t and std::invoke_result<>::type. It's disgusting a lot, especially because IntelliSense finds it easy.

Here's error log:

{"Workspace" directory}/Untitled-1.cpp:5:54: error: no template named 'invoke_result_t' in namespace 'std'; did you mean '_Invoke_result_t'?
template<typename I, typename FTy, typename O = std::invoke_result_t<std::function<FTy>, I>>
                                                ~~~~~^~~~~~~~~~~~~~~
                                                     _Invoke_result_t
{MSVS Installation directory}\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.12.25827\include\type_traits:1832:2: note: '_Invoke_result_t' declared here
        using _Invoke_result_t = typename _Invoke_traits<void, _Callable, _Args...>::type;
        ^
1 error generated.

If I use offered std::_Invoke_result_t instead of normal one, everything compiles and works as it should.

Also, every time I compile my code, that contains std::cout, compiler write that some locally defined symbols (_CxxThrowException and _std_terminate, to be honest) were imported to functions from .

Is there any way to fix all these troubles? Which of them are bugs and which are features? I heard, VS C++ libraries don't accomplish to ISO standard, does it may be reason of my troubles?

Answer 1

std::invoke_result is part of C++17, please ensure that the compiler has the -std=c++17 option.

Also,

#include <type_traits>

If you are using clang or a older version of c++ consider using std::result_of