does gfortran do double double ??
Reg Clemens
reg at dwf.com
Mon Jan 8 23:11:09 UTC 2007
> On Mon, Jan 08, 2007 at 02:44:38PM -0700, Reg Clemens wrote:
> > Most Fortran Compliers I have seen on 32 bit machines have a command
> > line option that converts double precision from 64 -> 128 bits.
> >
> > I see some options in gfortran to control variable lenght, but none that
> > do the above.
>
> Check out:
>
> -fdefault-double-8
> Set the "DOUBLE PRECISION" type to an 8 byte wide.
>
I saw that, and find it rather strange.
Single precision in normal 32bit, hence 4bytes.
That makes double 8bytes by default, so why does this statement exist?
I would want something that said -fdefault-double-16
--
Reg.Clemens
reg at dwf.com
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