[Numpy-discussion] f2py-users list not working
robince at gmail.com
Tue Nov 3 16:42:58 EST 2009
I just tried to send the message below to f2py-users -
f2py-users at cens.ioc.ee, but delivery failed.
Not sure where else to report this so hopefully here is ok.
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Date: Tue, Nov 3, 2009 at 9:40 PM
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To: robince at gmail.com
Delivery to the following recipient failed permanently:
f2py-users at cens.ioc.ee
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----- Original message -----
Subject: writing module for 32/64 bit
From: Robin <robince at gmail.com>
To: f2py-users at cens.ioc.ee
Content-Type: text/plain; charset=ISO-8859-1
I would like to write some subroutines in fortran involving integers
and distribute them in a small package. Users might be on 32 bit or
Is there an easy or recommended way to approach this? Ideally I would
like to work with the native integer type - but if I use 'integer' in
fortran it is always 32 bit and f2py converts input aways when numpy
is 64 bit. If I use integer*8 in the code then its fine for 64 bit,
but on 32 bit platforms, both f2py has to convert and its not the
native integer size.
What I (think) I'd like to do is be able to use the native platform
integer type, like numpy does, and then not worry about. I found there
are options like -fdefault-int-8 for gfortran, but when I add that
stuff breaks (bus error) since I guess f2py doesn't know about it and
is converting and passing 32 bits anyway.
Is there any way around this, or do I need to maintain 2 different
versions with different fortran code for 32bit/64bit? Or is it
possible to acheive something like this with preprossor #ifdefs? (not
sure how this works with fortran, or if f2py would be aware of it).
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