[Rd] rhs of == does not work with a list of items. should it ? (PR#1172)

[Paul.White@dsto.defence.gov.au]

> Hello bug people,
> 
> Version:
>  platform = i686-pc-linux-gnu
>  arch = i686
>  os = linux-gnu
>  system = i686, linux-gnu
>  status =
>  major = 1
>  minor = 3.1
>  year = 2001
>  month = 08
>  day = 31
>  language = R
> 
> is this a bug ?
> 
> x <- 1:10
> x==4:5
>  [1] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
> 
> Nothing said it should but nothing said it shouldn't . My expectation was
> that it would successively try
> each of the values in the list and or the result for each item in the x
> vector. ie it would pick out all the matches
of 4 or 5.

> [1] FALSE FALSE FALSE  TRUE TRUE FALSE FALSE FALSE FALSE FALSE
> 
> Paul

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