Funny, Microsoft seems to disagree with you: https://devblogs.microsoft.com/cppblog/c11-and-c17-standard-support-arriving-in-msvc/ https://devblogs.microsoft.co

Funny, Microsoft seems to disagree with you: https://devblogs.microsoft.com/cppblog/c11-and-c17-standard-support-arriving-in-msvc/ https://devblogs.microsoft.com/cppblog/c11-and-c17-standard-... > For many years Visual Studio has only supported C to the extent of it being required for C++. Things are about to change now that a conformant token-based preprocessor has been added to the compiler. With the advent of two new compiler switches, /std:c11 and /std:c17, we are officially supporting the latest ISO C language standards. > All the required features of C11 and C17 are supported.