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Re: [OctDev] arpack: eigs crash with octave 3.0.5 compiled with --enabl


From: Alexander Barth
Subject: Re: [OctDev] arpack: eigs crash with octave 3.0.5 compiled with --enable-64
Date: Mon, 8 Jun 2009 16:32:41 +0200

On Sun, Jun 7, 2009 at 3:51 PM, David Bateman<address@hidden> wrote:
> Jaroslav Hajek wrote:
>>
>> Do we? In fact, I think the Fortran standard requires the default
>> REAL, INTEGER and LOGICAL to be of equal size (numeric storage unit).
>> So, only some combinations of these flags are conforming in general. I
>> do not think Octave needs to be bulletproof in this regard, at least
>> not until a real need arises from practice. When you're altering the
>> sizes of default types, you're often breaking standard-conformance,
>> and you're therefore supposed to know what you're doing. Anyway, a
>> common practical advice is to avoid LOGICALs in external interfaces at
>> all and just use INTEGERs.
>>
>> cheers
>>
>>
>
> Then the pgf90 compiler with the -i8 flag is not standards compliant. Given
> that, then yes just using octave_idx_type is the right thing
>
> D.


Sorry, forgot the attachement.

Alex

Attachment: eigs-enable64.patch
Description: Text Data


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