[Patch] Fortran: Reject DT as fmt in I/O statments [PR99111]

[Paul Richard Thomas]

Hi Tobias,

The fix and the message are just fine for me. I am trying to imagine how
few people will ever encounter this!

OK for 10- and 11-branches

Thanks

Paul


On Tue, 16 Feb 2021 at 11:28, Tobias Burnus <tobias@codesourcery.com> wrote:

> GCC started to accept as legacy extension array-valued
> non-characters, which works for integer (+ real/logical).
>
> Some other – mostly unrelated patch regarding resolving
> array constructors (r10-5607-gde89b5748d68b76b, PR92996)
> turned this into an ICE.
>
> While it might be in theory fixable for derived types,
> just rejecting DT + CLASS + c_(fun)ptr makes more sense.
>
> I am not quite sure about the error-message wording.
> Better suggestions? In the 'rank > 0' branch, Hollerith
> should not occur and (as legacy extension) integer etc.
> are permitted. — Thoughts?
>
> Otherwise: OK for GCC 11 and GCC 10?
> (ICE is new in GCC 10.)
>
> Tobias
>
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