[Bug fortran/20460] Nasty extensions that should always warn

[Tobias dot Schlueter at physik dot uni-muenchen dot de]

------- Comment #7 from Tobias dot Schlueter at physik dot uni-muenchen dot de  2006-05-07 16:46 -------
Subject: Re:  Nasty extensions that should always warn

fxcoudert at gcc dot gnu dot org <gcc-bugzilla@gcc.gnu.org> wrote on  
Sun, 07 May 2006:
> Anyhow, we know have -std=legacy for such features, including REAL DO loop
> indices. The remaining question is: do we want to mark REAL array indices as
> legacy (there's currently no warning about them in -std=gnu mode)?

(we didn't have STD_LEGACY when this PR was opened)

I think this would be a good idea.  IMO bad Fortran 77 habits can  
qualify as legacy nowadays.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20460