[Rd] Unexpected behavior of identical() with language objects

[Joshua Ulrich]

On Wed, Oct 29, 2014 at 3:26 PM, Winston Chang <winstonchang1 at gmail.com> wrote:
> I ran into this and found the result very surprising:
>
> identical( quote({ a }),  quote({ a }) )
> # FALSE
>
> It seems related to curly braces. For example, parens work fine:
> identical( quote(( a )),  quote(( a )) )
> # TRUE
>
> Is this expected behavior? I can't seem to find anything in the help
> for identical that relates to this.
>
It's not in ?identical, but ?Paren gives you some pointers.
str(quote((a))) and str(quote({a})) are also informative.

> -Winston
>
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