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Re: Optimisation prevents overflow?


Daniel Franke ha scritto:
I'd guess, that's the (in)famous extended precision, 80 vs. 64 bits (iirc).

I'm going from memory here and I might be wrong, but wasn't this something that concerned (affected?!) only x86 processors? I'm asking because my OP stemmed from an incosistent behaviour of g77 on a Sun/SPARC machine and a Linux/x86 machine, which I suspect might be related to the minimal example I posted here.


Is there any way to turn off this extended precision in g77 (or gfortran)?

Davide


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