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

  • A+
Category:Languages

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?

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

 


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.

Comment

:?: :razz: :sad: :evil: :!: :smile: :oops: :grin: :eek: :shock: :???: :cool: :lol: :mad: :twisted: :roll: :wink: :idea: :arrow: :neutral: :cry: :mrgreen: