Setting Visual C++ Studio/Express to strict ANSI mode

Question

I generally program & compile under Linux with gcc and -ansi flag; but I\'ve been forced with doing a job in Visual C++ and whenever I compile my C code I get all the Mi

Answer 1

One way to suppress specific warnings is to add something like the following to the source.

#if defined( _WIN32 )
#pragma warning(disable:4996)
#endif

Answer 2

These warnings can be suppressed by defining _CRT_SECURE_NO_WARNING

Go to Procect Settings -> Preprocessor and add _CRT_SECURE_NO_WARNING

This isn't forcing compiler to comply with ANSI. Just suppresses use ..._s warnings

Answer 3

As mentioned in another answer, #define'ing _CRT_SECURE_NO_WARNING will address the specific warnings you mentioned in your question.

If you're really looking for an ANSI-only mode, the closest thing is the /Za compiler switch. Inside the Visual Studio IDE, you can find it in the project's Properties dialog (under Configuration Properties | C/C++ | Language | Disable Language Extensions).

Note that virtually all Windows apps build with Microsoft's compiler extensions enabled; e.g., I don't think you'd even be able to consume Windows SDK headers with /Za set. If your code truly is strict ANSI, you should be OK. If you have a few Windows-specific pieces in a project that is mostly strict ANSI, you could probably isolate those sources and only build those indivudal source files with /Za unset.