P3168R2 `std::optional` Range Support
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cxx26
ranges
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Description
WG21-P3168R2 std::optional Range Support
WG21-P3913R1 Optimize For std::optional In Range Adaptors
Feature-test macro:
#define __cpp_lib_optional_range_support 202406L
Note: We are not yet accepting PRs for C++26 features.
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 by reading the WG21-P3168R2 and WG21-P3913R1 proposals and the requirements implied by __cpp_lib_optional_range_support. The issue provides no implementation files or tests, and notes that PRs for C++26 features are not yet being accepted; completion would require implementing the specified optional range support and validating the feature-test macro.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- compilers
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 20/100