Karim BELABAS on Sat, 7 Sep 2002 23:46:25 +0200 (MEST)

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Re: gp: (-2/x)/(-1/x) + O(%) = seg fault

On Mon, 26 Aug 2002, Michael Somos wrote:
> I think the initial bug is that (-2/x)/(-1/x) was not reduced to integer 2.
> This is of minor consequence

Not really, it produces an invalid object!

> however, it can trigger a seg fault in 'O()'
> which does not have enough protective code. It may be argued that fixing
> the initial bug would obviate need for more protective code.

I have added protective code (check that the variable number we obtain is

> Perhaps. Note that I have found other examples of incomplete reduction
> that could have been fixed. This is just one simple example.

Can you update from CVS, re-check, and send the remaining "other examples" ?


Karim Belabas                    Tel: (+33) (0)1 69 15 57 48
Dép. de Mathematiques, Bat. 425  Fax: (+33) (0)1 69 15 60 19
Université Paris-Sud             Email: Karim.Belabas@math.u-psud.fr
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