Douglas Katzman <firstname.lastname@example.org> writes:For make-string it also says "returns a simple string", but nobody would
> interesting point. I think one could argue that the dumping/restoring of
> the second argument to EQL was permitted to find and return any symbol in
> the image that was similar-as-constant. So in fact the answer might have
> been T even if (string 'foo) was not compile-time folded.
> Your point holds even for the character-to-string-of-length-1 but all the
> same I think it's on firmer ground to fold (string #\a) => "a" because
> "returns a string" doesn't preclude that there might be a cache of
> single-character strings whose codes are in the range of base-char, and
> that the string could come from that cache. And that any one-character
> string appearing as a constant in code might also come from the cache.
> If nothing else, we should make (string "foo") an identity.
dare to fold that.
With best regards, Stas.