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Re: [Fortran, (RFC) patch] PR49110/51055 Assignment to alloc. deferred-length character vars
On Mon, Dec 10, 2012 at 10:49:57AM -0500, David Edelsohn wrote:
> On Mon, Dec 10, 2012 at 5:05 AM, Jakub Jelinek <jakub@redhat.com> wrote:
> > On Mon, Dec 10, 2012 at 10:56:58AM +0100, Janus Weil wrote:
> >> > For C and C++, identifiers beginning with underscore and upper case
> >> > letter or with two underscores are reserve to the implementation.
> >>
> >> See the previous discussion in this thread ...
> >
> > That's true, but the implementation isn't just GCC, it is also C libraries
> > which aren't provided by GCC. Including a character (if possible) that
> > will make it unaccessible from C/C++ is desirable. And, not changing the
> > names of non-TREE_STATIC vars is also desirable, those I'm afraid show up
> > in the debug info from time to time, so making them unnecessarily larger
> > results in .debug_info size increases.
>
> An earlier suggestion was "_F." . Maybe gfortran.h should follow the
> same logic as gcc/defaults.h and gcc/cp/cp-tree.h:
>
> #ifndef NO_DOT_IN_LABEL
> "_F."
> #else
> #ifndef NO_DOLLAR_IN_LABEL
> "_F$"
> #else
> "_F_"
> #endif
> #endif
Sure, we my
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55636
comment.
Jakub