LWG3777: Common `cartesian_product_view` produces an invalid range if the first range is input and one of the ranges is empty
Open
c++26
libc++
lwg-issue
ranges
- Dominant language
- LLVM
- Stars
- 40.5k
- Forks
- 18.7k
- PR merge metrics
- PR metrics pending
Description
**Link:** https://wg21.link/LWG3777
Contributor guide
Research direction
Start by reading the linked LWG3777 specification issue, then locate the libc++ implementation and tests for cartesian_product_view. Determine the expected behavior when the first range is input and another range is empty; done means the resulting range is valid and regression coverage demonstrates that case.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Active
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100