http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53001
Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |manu at gcc dot gnu.org
--- Comment #1 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2012-04-16
11:41:24 UTC ---
(In reply to comment #0)
> This is a request to add a new warning that warns on the subset of
> -Wconversion
> warnings that involve floating point numbers. For example, with
> -Wfloat-conversion this would cause a warning:
Should it also warn for non-literals?
int foo(double x)
{
return x;
}
> I think this could mostly be done by modifying gcc/c-family/c-common.c
> unsafe_conversion_p to add the ability to only warn on conversions where
> REAL_TYPE or REAL_CST are involved.
Yes, I think it should be easy to implement. You will also need to add a new
option to gcc/c.opt and enable -Wfloat-conversion with -Wconversion (grep for
OPT_Wimplict and how it handles its suboptions).
Unfortunately, I don't have time to work on this, and probably nobody else has,
so you could try to submit a patch: http://gcc.gnu.org/contribute.html
