But in the _copy_() method _mutability is set to a value. Even if I think this should be done in _new_c().
By the way, this bug also appears for x + y and x - y. greatz Johannes On 10.01.2013 23:34, Nils Bruin wrote: > On Jan 10, 12:55 pm, Johannes <dajo.m...@web.de> wrote: >> hey list, >> >> If you look at the code, there is a function called _new_c() which is >> used in the multiplication algorithm. > > See > > http://trac.sagemath.org/sage_trac/ticket/8294 > > Looks like a little more is broken than just __copy__. > > Normally, _mutability gets set in matrix0's Matrix.__init__. > > Matrix_integer_dense gets that by explicitly calling a superclass > __init__ in its __cinit__. I guess 2x2 tries to avoid that for > efficiency reasons, but it suggests that its __cinit__ (or at least > its _new_c) should then set the _mutability attribute. Is this class > intentionally producing maimed instances for efficiency reasons > perhaps? > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To post to this group, send email to sage-devel@googlegroups.com. To unsubscribe from this group, send email to sage-devel+unsubscr...@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel?hl=en.
