[Rd] Misinformative error message for vector()

[Prof Brian Ripley]

Easy to fix, and less serious than

> vector("list", length=NaN)
list()

On Sun, 20 Jan 2008, Henrik Bengtsson wrote:

> Nothing serious, but I just noticed that if you pass a function as the
> 'length' argument of vector(), you get the following misinformative
> error message:
>
>> vector("list", length=function() {})
> Error in vector("list", length = function() { :
>  negative length vectors are not allowed
>
> whereas if you for instance do:
>
>> vector("list", length="foo")
> Error in vector("list", length = "foo") :
>  unimplemented type 'character' in 'asVecSize'
>
> which is more informative.
>
> /Henrik
>
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-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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