On 5/9/07, William Stein <[EMAIL PROTECTED]> wrote: > > I know this isn't a bug in sage, but it is good to be aware of... If > > the contents of the file crash.py is: > > > > <file> > > def crash(): > > n = 5 > > k = 2 > > return [( 2**(n-2*i-2) - 2**(floor(n/2)-i-1) - 1 ) for i in > > range(k)] > > </file> > > > > Then you get bizarre behavior: > > > > sage: load crash.py > > sage: crash() > > > > ------------------------------------------------------------ > > Unhandled SIGSEGV: A segmentation fault occured in SAGE. > > <etc> > > ------------------------------------------------------------
The actual SIGSEGV part of the bug was caused by a mistake in the arithmetic architecture code, in which in one case it assumed that an element was of type Element, but it wasn't. This is fixed if you do hg_sage.pull() or apply the attached patch. William --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~----------~----~----~----~------~----~------~--~---
4386.patch
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