segfault: `QuadPrecision(1).byteswap()`
Open
Nobody has claimed this yet.
- Dominant language
- Python
- Stars
- 24
- Forks
- 6
- Avg merge
- 5d 41m
- Merged PRs (30d)
- 3
Description
It seems to happen every time:
❯ python -m IPython
Python 3.13.9 (main, Oct 14 2025, 21:29:44) [Clang 20.1.4 ]
Type 'copyright', 'credits' or 'license' for more information
IPython 9.6.0 -- An enhanced Interactive Python. Type '?' for help.
Tip: You can use LaTeX or Unicode completion, `\alpha<tab>` will insert the α symbol.
Ctrl click to launch VS Code Native REPL
In [1]: import numpy_quaddtype as npq
In [2]: npq.QuadPrecision(1).byteswap()
[1] 1076585 segmentation fault (core dumped) python -m IPython
For the numpy floating types this byteswap() is a no-op, I believe.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the crash with Python 3.13.9 using QuadPrecision(1).byteswap() and compare it with NumPy floating types' byteswap behavior. Trace the QuadPrecision.byteswap() entry point and add a regression test showing that the call no longer segfaults and has the intended no-op behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- numpy, python
- Domain
- data
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100