On Mon, 15 Jun 2020 at 06:19, Andrzej Krzemienski via Boost-users <boost-users@lists.boost.org> wrote:

At least some of the bullets above indicate that you need a string type tailored to the performance characteristics of your library (which is fine).

Is fine, internally. The use of a custom string in 'the app' is not gonna improve speed as much as a better algorithm.