cppcheck can't find include files

Question

cppcheck can't find even standard headers such as iostream. Any ideas?

I am using Ubuntu 11.04 and cppcheck from the repository.

Acoustics

Check if they are installed... – Mersey

@tyz: I think the idea is that cppcheck knows about ANSI/C++ w/o any headers. So I think it won't even understand gcc specific system headers etc.. – Suellen

Answer 1

cppcheck is really bad at finding standard include headers, on Mac and Linux. Fortunately, you can suppress this check, and only scan your custom header files:

cppcheck --enable=all --suppress=missingIncludeSystem .

Shurlock

This supress-flag gives me the following error: Unmatched suppression: missingIncludeSystem... Or does this simply mean that the check didn't suppress any arror? Can I suppress the non-suppressed suppress-error then? O:) – Pergolesi

Yes, you can suppress the 'unmatched suppression' error, with --suppress=unmatchedSuppression. :) – Vanish

Judging by the man page,I think this is named missingInclude now. – Ascendant

Answer 2

It isn’t recommended to provide the paths to the standard C/C++ headers - Cppcheck has internal knowledge about ANSI C/C++ and it isn’t recommended that this known functionality is redefined. But feel free to try it.

-I [dir]

Give include path. Give several -I parameters to give several paths. First given path is checked first. If paths are relative to source files, this is not needed.

Suellen

The -I option can make cppcheck run very slowly if you bring in a lot of headers. – Ordinarily

And don't get it mixed up with the '-i' (ignore) option. – Mydriasis

I think this is a better answer, at least for me, my headers are not in to project root directory. So if suppressing the warning no headers will be checked. – Toga