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NNTP-Posting-Date: Thu, 18 Nov 2010 06:07:59 -0600
From: "Les Neilson" <l.neil...@nospam.co.uk>
Newsgroups: comp.lang.fortran
References: <fc04fcb5-cd60-4850-9232-102f99fb0fa2@j33g2000vbb.googlegroups.com> <4CDFFFA7.6040509@net-b.de> <ibruc3$r6q$1@speranza.aioe.org> <c8ac9673-b253-4a04-9cb8-8c4a8aaee275@q14g2000yqe.googlegroups.com>
In-Reply-To: <c8ac9673-b253-4a04-9cb8-8c4a8aaee275@q14g2000yqe.googlegroups.com>
Subject: Re: gfortran or ifort?
Date: Thu, 18 Nov 2010 12:23:56 -0000
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"Daniel Carrera" <dcarr...@gmail.com> wrote in message 
news:c8ac9673-b253-4a04-9cb8-8c4a8aaee275@q14g2000yqe.googlegroups.com...
On Nov 15, 7:32 pm, Paul van Delst <paul.vande...@noaa.gov> wrote:
> The pro of gfortran is: it isn't ifort. The pro of ifort is: it isn't 
> gfortran.
>
> My response may sound flippant, but it isn't meant to be. We have machines 
> with a bunch of different
> compilers for testing, e.g. gfortran, g95, ifort, pgi.

>Is g95 different enough from gfortran that it is worth installing?
>Also, I thought g95 often had installation conflicts with gfortran.

>Btw, I've installed ifort on my computer and I've been using it to
>double check my work. It's been interesting. I've seen ifort reject
>some things that gfortran accepts, like a "rand(0)" call inside a pure
>function, which I now know is not part of the F95 standard. I'm
>slightly annoyed that ifort won't compile a program with the .f95
>extension. You have to use .f90, but my programs use F95 features.


The file extension does NOT indicate the Fortran standard number but 
distinguishes between fixed format and free format source.
On Windows it is possible to add the f95 file extension to the list of "free 
format" source files. I don't know about *nix

Les