Why is the Visual Studio Community 2017 C++ standard C++98?

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Yesterday I upgraded to the latest VS Community 2017 (the previous one was installed last year) and wanted to check the C++ standard. So I run the following code that checks it, and as it turns out, I have C++98:

#include<iostream>
using namespace std;
int main()
{
cout << __cplusplus << endl;
system("pause");
}


Which outputs


199711


Why don't I have the latest C++ standard?



The value of __cplusplus is temporarily intentionally non-conformant by default for current versions of Visual Studio in order to avoid breaking existing code. It does not mean your compiler does not support any C++11 (or newer) features.

Quoting from MSVC now correctly reports __cplusplus:


/Zc:__cplusplus

You need to compile with the /Zc:__cplusplus switch to see the updated value of the __cplusplus macro. We tried updating the macro by default and discovered that a lot of code doesn’t compile correctly when we change the value of __cplusplus. We’ll continue to require use of the /Zc:__cplusplus switch for all minor versions of MSVC in the 19.xx family.

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