Comment by benj111
8 days ago
Define library. Surely a library is a collection of functions, not a collection of files, so you could have a single file library. I don't know at what size a collection of functions becomes a library, but I don't think anyone does.
Ultimately this file is supposed to be the one stop shop for all string related needs, so in what sense isn't that a library.
I think they mean it's part of the standard library, instead of being a separate library.