I figured the actual length value may be useful without needing pointer arithmetic, but this is a nice solution to the argument taking the size, and the return

I figured the actual length value may be useful without needing pointer arithmetic, but this is a nice solution to the argument taking the size, and the return being the length (size-1, eg p[return]=NUL location.) I'll consider this idea and write some comparisons to see how it works, thanks.