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 valid). > 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" ? Thanks, Karim. -- 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 F-91405 Orsay (France) http://www.math.u-psud.fr/~belabas/ -- PARI/GP Home Page: http://www.parigp-home.de/