How to prevent clang-format to add space after comment char?

Question

I have some comments in my code:

//asdf

when I use clang-format on it, it adds a space just after the // characters:

// asdf

How can I prevent that from happening in the clang-format configuration ?

Thanks

Answer 1

Combining the answers to these two questions should solve the problem:

• clang-format breaks lint annotations
• What regex will match every character except comma ',' or semi-colon ';'?

So the following line in your .clang-format file should do the trick (I did not test it):

CommentPragmas:  '^[^ ]'

That tells clang-format not to mess with comments that start with something other than a space.

For completeness, clang-format documentation here.