`BTreeMap::merge` optimized#152418

Merged

rust-bors[bot] merged 3 commits intorust-lang:mainfrom

asder8215:btreemap_merge_optimized

Feb 25, 2026

Commits on Feb 24, 2026

feat: BTreeMap::merge implemented with into iterators only (similar to BTreeMap::append)
asder8215
committed
Optimized BTreeMap::merge using CursorMut
asder8215
committed
Swapped key comparisons to match lower_bound_mut, added FIXME comments on bulk inserting other_keys into self map, and inlined with_next() insertion on conflicts from Cursor*
asder8215
committed