LWG4314: Missing move in `mdspan` layout `mapping::operator()`
Open
c++26
libc++
lwg-issue
- Dominant language
- LLVM
- Stars
- 40.5k
- Forks
- 18.7k
- PR merge metrics
- PR metrics pending
Description
**Link:** https://wg21.link/LWG4314
Contributor guide
Research direction
Start with the LWG4314 link and locate the mdspan layout mapping::operator() implementation in the LLVM source. Determine the required missing move behavior from the issue and standard-library guidance, then verify the change with the relevant mdspan tests; done means the required move is present and the tests pass.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100