LWG4376: ABI tag in return type of [simd.mask.unary] is overconstrained
Open
c++26
libc++
lwg-issue
simd
- Dominant language
- LLVM
- Stars
- 40.5k
- Forks
- 18.7k
- PR merge metrics
- PR metrics pending
Description
**Link:** https://wg21.link/LWG4376
Contributor guide
Research direction
Start by reading the linked LWG4376 specification issue, since the GitHub issue does not identify a source file or test. Trace the libc++ implementation and relevant conformance tests for [simd.mask.unary], then verify that the return-type ABI tag matches the clarified standard wording.
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
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100