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Re: Structure Return Testcase
- to: gcc at gcc dot gnu dot org
- Subject: Re: Structure Return Testcase
- from: toon at moene dot indiv dot nluug dot nl
- Date: 17 Mar 2001
Richard Henderson wrote:
> Also, I seem to recall that Craig Burley mentioned that there
> was some case for which Fortran needed safe handling of overlap.
> I don't know what's used in f771 at the moment -- perhaps these
> things are just mishandled currently.
What I recall from Craig's test cases is that they specifically
overwrote part of a complex argument in the assignment of the function
result, i.e. something like:
REAL R
COMPLEX C
EQUIVALENCE(R,C)
...
R = ABS(C)
...
The legality of this is doubtful. As I'm attending the 156th meeting of
the Fortran Standardization Committee next week, I'll dig up the
examples and ask around.
--
Toon Moene - mailto:toon@moene.indiv.nluug.nl - phoneto: +31 346 214290
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