On Tue, Jun 30, 2020 at 1:32 PM Martin Maechler
<maech...@stat.math.ethz.ch> wrote:
>
> >>>>> Kurt Hornik
> >>>>> on Tue, 30 Jun 2020 06:20:57 +0200 writes:
>
> >>>>> Jan Gorecki writes:
> >> Thank you both, You are absolutely correct that example
> >> should be minimal, so here it is.
>
> >> l = list(a=new.env(), b=new.env()) unique(l)
>
> >> Just for completeness, env_list during check that raises
> >> error
>
> >> env_list <- list(baseenv(),
> >> as.environment("package:graphics"),
> >> as.environment("package:stats"),
> >> as.environment("package:utils"),
> >> as.environment("package:methods") )
>
> >> unique(env_list)
>
> > Thanks ... but the above work fine for me. E.g.,
>
> R> l = list(a=new.env(), b=new.env())
> R> unique(l)
> > [[1]] <environment: 0x55695f2f6d20>
>
> > [[2]] <environment: 0x55695f2f6930>
>
> > Best -k
>
> Ditto here; also your (Jan) 2nd example works fine.
>
> So, you must have loaded some (untidy) packages / code which redefine
> standard base R behavior ?
Looking inside Jan's Dockerfile, it turns out that he is configuring R with
./configure --with-recommended-packages --enable-strict-barrier
--disable-long-double
and with that I can reproduce:
> unique(list(new.env()))
Error in unique.default(list(new.env())) :
LENGTH or similar applied to environment object
--enable-strict-barrier is enough to reproduce the error.
-Deepayan
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