On Wed, Apr 29, 2009 at 7:16 AM, Rainer Keller <email@example.com>
sure like to try to explain the matters.
The script check_unnecessary_headers.sh is not smart at all.
It checks whether a header, if known, is required due to some content.
It does not know about hierarchies of include files, or convenience headers
such as bindings.h and would delete the very headers mention below from
Now, only if we switch to a more sophisticated method (ctags?, munching gcc's
preprocessed output?), this could be handled.
My personal opinion however is, that every header and every source file should
be self contained:
It should include all the headers with symbols it needs, no less, and
certainly not more ;-)
That's an unusual coding style - we could debate the relative pros and cons of it for quite some time. Typically, if a body of code is going to all require the same headers, coding efficiency would put those dependencies in a common .h file, not explicitly copy/paste them into every individual file.
Is this a convention we adopted somewhere along the line? I don't recall doing so. Not sure if it is a good one or not...certainly would appear to merit some discussion before enforcing it.
FWIW: I understood you were simply going to remove unnecessary dependencies, not enforce new coding standards. :-)
Hope, this is a satisfactory answer?
On Wednesday 29 April 2009 06:31:13 am Jeff Squyres wrote:
> Rainer --
> Can you explain this a little more:
> In ompi/mpi/c/ header files are moved up into the actual c-file,
> where necessary (these are the only additional #include),
> otherwise it is only deletions of #include (apart from the above
> additions required due to notifier...)
> It looks like the addition of
> +#include "ompi/runtime/params.h"
> +#include "ompi/communicator/communicator.h"
> +#include "ompi/errhandler/errhandler.h"
> to lots of ompi/mpi/c/*.c files. I don't quite grok from your commit
> comment why that was a good thing...?
Rainer Keller, PhD Tel: +1 (865) 241-6293
Oak Ridge National Lab Fax: +1 (865) 241-4811
PO Box 2008 MS 6164 Email: firstname.lastname@example.org
Oak Ridge, TN 37831-2008 AIM/Skype: rusraink
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