Re: Detect unused header files?

[Christopher Li <sparse@chrisli.org>]

On Tue, Jul 28, 2009 at 1:36 PM, Robert P. J. Day<rpjday@crashcourse.ca> wrote:
> sure you can.  no one should be counting on the inclusion of header
> files by other header files (except possibly in unusual situations,
> which i can't even think of at the moment).  if your program needs the
> contents of a header file, it's your responsibility to include it.

The case I have in mind is that, some API level header file include some
internal header file for constant defines. For example:

drivers/ieee1394/host.h include drivers/ieee1394/csr.h.

The "csr.h" is just the register define. It is not used in this header file
itself. I did not check very closely, for augments sake pretend those
inline function are not there. It just have register defines.

Should the C program changed to include "csr.h" directly? I don't think so.

Chris
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