[Rcpp-devel] How to modifying the elements of a list in the global environment?
xian at unm.edu
Fri Oct 19 10:19:01 CEST 2012
> Anything you pass from R into your C++ routine should be considered
> read-only. It's typically a bad idea to do in-place updates of the R
> object you passed in as an argument.
Really? I was under the impression that the ability of in-place
modification was a conscious design decision.
Be aware that you've stepped outside of the functional programming
But read-only? From the C++ point of view, it's just memory.
That said, if you want safety (e.g. default R behaviour), use clone().
Then you can modify to your heart's content.
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