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Re: arbitrary precision gfortran



On 12/14/05, Yigal Weinstein <yigal.weinstein@gmail.com> wrote:

> Is there a simple way of implementing arbitary precision in gnu fortran
> compilation?  I got rather confused about what could be easily done and what
> cannot be easily done researching it myself.  So any feedback would be
> great.

You mean like having pi to any desired number of digits?  As far as I
know, there is no intrinsic support for this in any FORTRAN (or C, for
that matter) compiler.

>  The code I am working on is primarily f77 and it would be better to keep it
> fortran than translate it to C etc..

There are arbitrary precision libraries like libmpfr that seem like
they do want you want.  I have no idea if any have FORTRAN bindings,
but you could write wrapper code in C for the needed functions using,
for instance, cfortran.

regards,

--
Kevin B. McCarty <kmccarty@princeton.edu>   Physics Department
WWW: http://www.princeton.edu/~kmccarty/    Princeton University
GPG: public key ID 4F83C751                 Princeton, NJ 08544



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