------- Comment #4 from manu at gcc dot gnu dot org 2010-05-20 17:04 -------
The manual documents what is enabled by -Wall and -Wextra and all other groups
options. We will accept patches fixing any missing/mistaken entries. You could
also propose some warnings to be moved to Wextra. Getting into Wall is more
difficult because they have to be pretty clear and serious warnings without few
false positives.
See also the option -fdiagnostics-show-option.
It would be extremely useful to go through the manual and:
* Document which warnings are exactly enabled by -pedantic -Wall and -Wextra.
Wall and Wextra should be ok but could be good to double check them.
* Document which warnings are not enabled by default or by one of the above.
Provide a complete list of those warnings.
* With this list at hand, one could suggest to move some warnings to Wextra
or...
* perhaps provide a "Wparanoid" setting that includes all those warnings.
Although some may be too specific to make sense at all except for very specific
situations. That is why the list might be interesting.
* A list of warnings enabled by default would also be interesting. (They are
mentioned in the manual for each warning, but there is no complete list.)
Instead of -show-warnings, I would propose to extend the current
--help=warnings --verbose. However, that would mean documenting within GCC the
relations between the warnings options. That by itself (even without the
output) would be EXTREMELY useful if done properly, that is, by adding the
information to the *.opt files that define the flags. I can provide pointers on
how this could be implemented. A follow-up patch could even fill the details of
the manual from that information automatically!
So, I think yes, we are interested in any of the above, so if you are
interested in providing patches, choose something small to start with (some
small documentation patch to the manual), and ask whatever you want. You may
ask here or write to me directly.
--
manu at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |manu at gcc dot gnu dot org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2010-05-20 17:04:01
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44210
