#17056: Bugs in WordDatatype_char
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Reporter: vdelecroix | Owner:
Type: defect | Status: new
Priority: critical | Milestone: sage-6.4
Component: combinatorics | Keywords:
Merged in: | Authors: Vincent Delecroix
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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There are two bugs with WordDatatype_char (new datastructure for words
introduced in #17013):
- in `__dealloc__` we access a Python attribute... it is very bad since
Cython is such that they are deallocated before the call to `__dealloc__`.
In different situations sage terminates because of a memory corruption
- in `__getitem__` we had
{{{
sage: W = Words([0,1,2])
sage: w = W([0,1,0])
sage: w[:0]
word: ... <RANDOM STUFF> ...
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/17056>
Sage <http://www.sagemath.org>
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