On 03/03/2012 13:42, Terry Therneau wrote:> Does .C duplicate unnecessary arguments? For instance
> fit<- .C("xxx", as.integer(n), x, y, z=double(15))
>
> The first and fourth arguments would have NAMED = 0. Is my guess that .C
> won't make yet one more (unnecessary) copy correct?
.C's internals (do_dotcode) does not know about NAMED. It duplicates
(unless DUP=FALSE).
Use .Call if you want to control duplication.
> (Just trying to understand).
>
> Terry T
>
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Brian D. Ripley, ripley at stats.ox.ac.uk
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