[PATCH] D48896: [libcxx][c++17] P0083R5: Splicing Maps and Sets Part 2: merge

[Louis Dionne via Phabricator]

ldionne added a comment.

In https://reviews.llvm.org/D48896#1281777, @erik.pilkington wrote:

> I think the insertion hint idea is really slick. I tried it out, and it does provide some pretty significant improvements, particularly when merging multi-containers that have a lot of duplicate keys. I would probably prefer doing it in a follow-up though, rather than complicating this "just get it working naively" patch.


Works for me.


https://reviews.llvm.org/D48896