Igor Schein on Sun, 9 Mar 2003 10:09:37 -0500


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Re: idealprimedec() bug


On Sun, Mar 09, 2003 at 01:01:25PM +0100, Karim BELABAS wrote:
> On Sat, 8 Mar 2003, Igor Schein wrote:
> > ? idealprimedec(nfinit(x^16+16),256)
> >   ***   bug in GP (Segmentation Fault), please report
> 
> Bad Input... I added a cheap check in CVS.
> 
> (12:51) gp >  idealprimedec(nfinit(x^16+16),256)
>   ***   primedec: 256 is not a prime.
> 
> [ if one of two obvious "assert" fails. No primality check is made ]

This one still goes undetected: 

? idealprimedec(nfinit(x^24 + 62*x^12 + 1),8)
  ***   bug in GP (Segmentation Fault), please report

Thanks

Igor