Dear Brian, Thank you for this.
John > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Prof Brian Ripley > Sent: Sunday, December 09, 2007 1:05 PM > To: John Fox > Cc: r-devel@r-project.org > Subject: Re: [Rd] Using Fortran 95 in an R package? > > On Sun, 9 Dec 2007, John Fox wrote: > > > Dear R-devel list members, > > > > What's the best current advice about writing Fortran code > for use in R > > packages? The Writing R Extensions manual still says that > the .Fortran > > interface is primarily intended for FORTRAN 77 code. In particular, > > are there portability issues if I use Fortran 95 in a package? For > > example, I see that Rtools for Windows now include the > gfortran compiler. > > Yes, there are still portability issues. We do still see > quite a few people using gcc3/g77 (especially on older Linux > and commercial Unices) and there are further issues if you > make use of subprogram names containing underlines. We don't > distribute a cross-building solution for Windows using > gfortran (although one can be built, it will not be mature > until gcc 4.3.x is out). > > However, I would not let that deter you: just use .f95 > extensions on the Fortran 95 files and avoid underlines. For > Windows users you are effectively requiring R >= 2.6.0. > > Brian > > -- > Brian D. Ripley, [EMAIL PROTECTED] > Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ > University of Oxford, Tel: +44 1865 272861 (self) > 1 South Parks Road, +44 1865 272866 (PA) > Oxford OX1 3TG, UK Fax: +44 1865 272595 > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
