P3091R6 Better Lookups For `map`, `unordered_map`, And `flat_map`
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cxx29
flat_meow
- Dominant language
- C++
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Description
WG21-P3091R6 Better Lookups For map, unordered_map, And flat_map
Feature-test macro:
#define __cpp_lib_map_lookup 202606L
Note: We are not yet accepting PRs for C++29 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 with the WG21-P3091R6 proposal named in the issue and compare its requirements with the existing map, unordered_map, and flat_map lookup APIs. Confirm the __cpp_lib_map_lookup value and wait for the project to accept C++29 contributions before treating implementation and tests as actionable.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- developer-experience
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 15/100