#6777: segfault with univariate polynomial, realfield, complexfield
-----------------------------------+----------------------------------------
Reporter: ncalexan | Owner: malb
Type: defect | Status: new
Priority: major | Milestone: sage-4.8
Component: commutative algebra | Keywords: polynomial segfault
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
-----------------------------------+----------------------------------------
Changes (by SimonKing):
* upstream: => N/A
Comment:
I don't obtain a segmentation fault, but this is on Debian GNU/Linux.
On [http://groups.google.com/group/sage-
devel/browse_thread/thread/d4807256e57cd843 sage-devel], it is discussed
that one gets a rather strange phenomenon: Before the traceback starts,
some ERROR is printed.
{{{
sage: RealField(300)['x']( [ 1, ComplexField(300).gen(), 0 ])
ERROR: An unexpected error occurred while tokenizing input
The following traceback may be corrupted or invalid
The error message is: ('EOF in multi-line statement', (1375, 0))
ERROR: An unexpected error occurred while tokenizing input
The following traceback may be corrupted or invalid
The error message is: ('EOF in multi-line statement', (1375, 0))
---------------------------------------------------------------------------
TypeError Traceback (most recent call
last)
}}}
I get this with unpatched sage (hence, no segfault), and Michael Orlitzky
reports the same after fixing the segfault.
However, with some of my patches applied, one simply gets a straight
forward traceback:
{{{
sage: RealField(300)['x']([ ComplexField(300).gen() ])
---------------------------------------------------------------------------
TypeError Traceback (most recent call
last)
...
TypeError: Unable to convert x
(='1.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000*I')
to real number.
}}}
Could you test whether #9138 (or perhaps #11900) actually fixes the
problem already?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6777#comment:1>
Sage <http://www.sagemath.org>
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