On Wed, Aug 16, 2023 at 9:24 PM Nathan Bossart <
nathandbossart@gmail.com> wrote:
>
> On Wed, Aug 16, 2023 at 10:35:27AM +0700, John Naylor wrote:
> > Now I'm struggling to understand why each and every instance has its own
> > nominal buffer, passed down to the implementation. All we care about is the
> > result -- is there some reason not to confine the buffer declaration to the
> > general implementation?
>
> We can do that if we use a static variable, which is what I've done in v6.
That makes it a lexically-scoped global variable, which we don't need either. Can we have the internal function allocate on the stack, then call cstring_to_text() on that, returning the text result? That does its own palloc.
Or maybe better, save the starting pointer, compute the length at the end, and call cstring_to_text_with_len()? (It seems we wouldn't need the nul-terminator then, either.)