Is it safe to delete the “ipch” folder - Precompiled headers? [duplicate]

Answer 1

There are a number of files that Visual C++ uses temporarily that can freely be deleted. Most of them will automatically be recreated the next time you load the project, while the others will be regenerated the next time you build your project.

I have found the need to prune these files out for zipping and sharing online, so I wrote this utility for pruning the temporary files.

In direct answer to the question, the answer is yes.

Answer 2

Managed to find a pretty informative answer from the MSDN support forums:

I'm not only a C# moderator but also a C++ user :} The ipch directory and the many, many new files generated by the compiler can be safely deleted. In fact they should be deleted (and probably are) for clean builds. I teach a C++ college class myself and here is what I require my students to do.

1.In the solution folder delete all bin, obj, ipch, debug and release directories.

2.Delete any .suo files

3.Delete any .user files

4.Delete any .ncb files

5.Delete any .sbr files

6.Delete any .*log files (for VS 2010)

I've had no issues following the given steps.

(Source and original post)

Update:

raphinesse has also linked to a question which states that the .SDF file can be removed safely as well.

Answer 3

I was bothered by my 'ipch' folder and deleted it. When you open the project again the 'ipch' folder is recreated. Runs just like before.

Answer 4

Yes, it is safe - all that is in this gitignore file is safe to remove: https://github.com/github/gitignore/blob/master/VisualStudio.gitignore