Opened 5 years ago
Last modified 4 years ago
#21391 closed enhancement
Disallow mixing of pos.char.ring elements and symbolic variables — at Version 4
Reported by: | rws | Owned by: | |
---|---|---|---|
Priority: | critical | Milestone: | sage-duplicate/invalid/wontfix |
Component: | symbolics | Keywords: | segfault |
Cc: | jdemeyer, vdelecroix, slelievre | Merged in: | |
Authors: | Ralf Stephan | Reviewers: | |
Report Upstream: | N/A | Work issues: | |
Branch: | u/rws/disallow_mixing_of_pos_char_ring_elements_and_symbolic_variables (Commits, GitHub, GitLab) | Commit: | 7147699e66955b2a130a871b97886ec5af3a665d |
Dependencies: | Stopgaps: |
Description (last modified by )
This is to have a place for code examples and discussion of impact of the proposal in https://groups.google.com/forum/?hl=en#!topic/sage-devel/auLwQWtpnz0
The following produces a segmentation fault (Sage 7.4, Ubuntu 14.04 or OS X 10.10.5), see Ask Sage.
sage: F = GF(3) sage: num, den = F(2)*x + F(1), x sage: num/den ... segmentation fault ...
Change History (4)
comment:1 Changed 5 years ago by
- Branch set to u/rws/disallow_mixing_of_pos_char_ring_elements_and_symbolic_variables
comment:2 Changed 5 years ago by
- Cc jdemeyer vdelecroix added
- Commit set to 7147699e66955b2a130a871b97886ec5af3a665d
comment:3 Changed 5 years ago by
Alternatively this could be made a stopgap. Which is better?
comment:4 Changed 5 years ago by
- Cc slelievre added
- Description modified (diff)
- Keywords segfault added
Adding an example leading to a segmentation fault to the ticket description.
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In a first scan these doctests would have to be changed:
New commits:
21391: Disallow mixing of pos.char.ring elements and symbolic variables