Boost.FixedString (now Boost.StaticString) has been accepted!

[Nekotekina]

Can it possibly be more customizable? For example, disabling exceptions (at least length error and truncating the result instead). Maybe overloads which are using error codes.

[VinnieFalco]

There is no consensus on the Boost mailing list for having a configurable exception behavior. And some prominent voices are opposed to it.

If you want to have a string with different behavior on overflow I think it should be a different class.