rust-lang / rust-lang/rfcs

BTreeSet should support in-place boolean operations

Open
#3,019 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
Markdown
Stars
6.6k
Forks
1.7k
Avg merge
16h 14m
Merged PRs (30d)
1

Description

At the moment, the boolean operations return an iterator that must be collected into a set each time. This prevents following boolean operations for benefitting from the knowledge that the items are already sorted.

I should be able to do in-place operations that are much more efficient, and potentially operations on multiple sets at once. (For example, N-way intersection).

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

The issue names no files or tests. Start by reviewing Rust's existing BTreeSet boolean-operation APIs and the RFC process, then define the scope for in-place and multi-set operations. Done should be a concrete, agreed design suitable for an RFC rather than an implementation patch.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
tooling
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.