Matthias Krüger 039d6dc289
Rollup merge of #92706 - umanwizard:btree, r=dtolnay
Clarify explicitly that BTree{Map,Set} are ordered.

One of the main reasons one would want to use a BTree{Map,Set} rather than a Hash{Map,Set} is because they maintain their keys in sorted order; but this was never explicitly stated in the top-level docs (it was only indirectly alluded to there, and stated explicitly in the docs for `iter`, `values`, etc.)

This PR states the ordering guarantee more prominently.
2022-01-16 16:58:16 +01:00
..
2021-12-04 16:20:35 +01:00