PyModule_AddIntConstant() wraps >=2^31 values when long is 4 bytes
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interpreter-core
type-bug
- Dominant language
- Python
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- Avg merge
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- Merged PRs (30d)
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Description
| BPO | 28215 |
|---|---|
| Nosy | @vstinner, @tiran, @altendky |
Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.
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GitHub fields:
assignee = None
closed_at = None
created_at = <Date 2016-09-20.15:28:39.724>
labels = ['type-bug']
title = 'PyModule_AddIntConstant() wraps >=2^31 values when long is 4 bytes'
updated_at = <Date 2016-09-20.18:31:24.540>
user = 'https://github.com/altendky'
bugs.python.org fields:
activity = <Date 2016-09-20.18:31:24.540>
actor = 'altendky'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = []
creation = <Date 2016-09-20.15:28:39.724>
creator = 'altendky'
dependencies = []
files = []
hgrepos = []
issue_num = 28215
keywords = []
message_count = 5.0
messages = ['277036', '277044', '277051', '277052', '277055']
nosy_count = 3.0
nosy_names = ['vstinner', 'christian.heimes', 'altendky']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue28215'
versions = ['Python 3.5']
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
Start at the PyModule_AddIntConstant() C API implementation and inspect the existing C API tests. Reproduce the wrapping behavior on a platform where long is 4 bytes, then add coverage for values at and above 2^31. Done means those values are preserved instead of wrapping.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c, python
- Domain
- api
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100