How can I use precompiled headers from a header file?

Asked Dec 14 '22 at 14:54

Active Dec 14 '22 at 14:54

Viewed 33 times

distilled.cpp

#include "distilled.hpp"

int main() {
    
}

distilled.hpp

#include "stdafx.h"

batch

cl distilled.cpp /Yustdafx.h /Fpstdafx.pch /I include /std:c++20 /EHsc -DDEBUGMODE=true /c

This is the ideal setup but generates compiler errors.

#include "stdafx.h"
#include "distilled.hpp"

int main() {

}

This works fine. When the stdafx is included in the cpp file, it compiles blazing fast, which is very cool, but ideally, I would want to put that inclusion in another file. This approach also creates include errors in nested files(only in VSCode, not an actual compilation), where the compiler only works if I have #include "stdafx.h" exactly, but IntelliSense wants #include "../stdafx.h". Am I doing something wrong to get this result?

asked Dec 14 '22 at 14:54

Logos King

Yes, but the solution to the include issue is to use `/Yu /Fpstdafx.pch` and then put `#pragma hdrstop("actualpath")` at the top of afflicted files – Logos King Dec 14 '22 at 15:08
No, the solution is to not use precompiled headers in header files, as this is not the intended use. – Simon Kraemer Dec 15 '22 at 08:28
@SimonKraemer I meant in reference to the include errors in every file inside a folder – Logos King Dec 15 '22 at 17:43

How can I use precompiled headers from a header file?

0 Answers0