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Date: Sun, 09 Aug 2009 21:13:10 +0200
From: Georg Bauhaus <rm.tsoh.plus-bug.bauhaus@maps.futureapps.de>
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Subject: Re: GNAT's stack checking in Ubuntu 9.04  (and Shootout regex-dna)
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Date: 2009-08-09T21:13:09+02:00
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Brian Drummond wrote:

>> The GNAT that comes with Ubuntu 9.04 (GCC 4.3.3)
>> produces storage errors where GNAT on Debian Lenny
>> (GCC 4.3.2) and GNAT 2007 on Windows (4.3.1) don't.
>> This happens with larger data structures.
>>
>> The workaround is to introduce an indirection ... (.-)
> 
> Default stack sizes may change between GCC versions and I've had trouble getting
> the stack size flags to work on some versions. 


Two new versions of regex-dna are available. One of them
performs both pattern matching and match-replace concurrently.

Both are fixed WRT stack limits, using the heap now.

I would be grateful if somebody who has access to a quad
core or single core machine could run these.  If you would
like to change the number of tasks look for the constant
Max_CPUs which is set to 4.

Multitasking version:
http://home.arcor.de/bauhaus/Ada/regexdna-multi.ada

Just the fixed original:
http://home.arcor.de/bauhaus/Ada/regexdna.ada