Re: Anyone working on 64-bit octave

[Tatsuro MATSUOKA]

Hello

For current state, please see
http://www.gnu.org/software/octave/doc/interpreter/Compiling-Octave-with-64_002dbit-Indexing.html#Compiling-Octave-with-64_002dbit-Indexing

Regards

Tatsuro

--- On Fri, 2012/2/17, Thomas D. Dean  wrote:

> Is anyone working on making octave use the full precision of 64-bit machines?
> 
> Currently, compiling octave on a x86_64 produces a 64-bit executable. But, 
> because of the definition of double, this gives no precision gain for 
> floating point over 32-bit machines.
> 
> With gfortran, I can use -fdefault-real-8 and -fdefault-integer-8 and create 
> an application which uses more of the machine's precision.
> 
> I read gcc docs but cannot find a similar command line option for gcc46.  
> Maybe the third time my eyes crossed, I missed something?
> 
> The only way is to change 'int' to 'long int' and 'double' to 'long double' 
> in the source code, a lot of work.
> 
> Has anyone started on this?
> 
> Tom Dean
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