Question

Guys I was trying in VS to do something like:

#ifdef _MSC_VER
#include "stdafx.h"
#endif  

but I’m getting an error telling me:

C1020: unexpected #endif

What is the correct way to do it?

Edit
/This is content of stdafx.h/

// stdafx.h : include file for standard system include files,
// or project specific include files that are used frequently, but
// are changed infrequently
//

#pragma once

#include "targetver.h"

//#include <stdio.h>
//#include <tchar.h>
#include <iostream>
using std::cout;
using std::cerr;

// TODO: reference additional headers your program requires here

Answer 1

You cannot put conditionals around stdafx.h because of the way MSVC precompiled headers work. It basically replaces everything once stdafx.h has been found (and usually requires #include "stdafx.h" to be the first line in the file) with the precompiled header contents, so it is as if you never wrote #if _MSC_VER and have an extra #endif.

Two solutions:

1) Do not use precompiled headers in your project. You can still use stdafx.h to include all the headers you require but compilation will be slow.

2) Put the conditional compile within the stdafx.h file.

(Taken from here)