LWG4510: Ambiguity of `std::ranges::advance` and `std::ranges::next` when the difference type is also a sentinel type
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/LWG4510
Contributor guide
Research direction
Start with the linked LWG4510 issue, then locate the implementations and tests for std::ranges::advance and std::ranges::next. Determine the specified resolution for the ambiguity when the difference type is also a sentinel type; done means the behavior matches that resolution and the relevant tests pass.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100