*Ping* patch, fortran] Warn about constant integer divisions

[Thomas Koenig]

*ping*

https://gcc.gnu.org/ml/gcc-patches/2015-06/msg00966.html


> Hello world,
> 
> the attached patch emits a warning for constant integer division.
> While correct according to the standard, I cannot really think
> of a legitimate reason why people would want to write 3/5 where
> they could have written 0 , so my preference would be to put
> this under -Wconversion (like in the attached patch).
> 
> However, I am open to discussion on that.  It is easy enough to
> change.
> 
> Regression-tested.  Opinions?  Comments?  Would somebody rather
> have -Wconversion-extra?  OK for trunk?