[Rcpp-devel] today's commits overview

[Romain François]

On 01/07/2010 08:53 PM, Dirk Eddelbuettel wrote:
>
> On 7 January 2010 at 14:43, Whit Armstrong wrote:
> | you're on fire!
> |
> | are you working on this full time?

Don't tell anyone.

> Shhhh, don't wake him up!  He is in a trance, and if he wakes up, he may
> realize he needs to put food on the table and stop coding....

Yes. I've sacrificed a good chunk of my time for this, and I probably 
should not have.

The obsession will stop at some point. we'll see.

It's good learning about R internals anyway. Time for documentation, 
anyone wants to step in ?

Romain

> Dirk
>
> | -Whit
> |
> |
> | 2010/1/7 Romain François<francoisromain at free.fr>:
> |>  Today has been a Rcpp commit day :-)
> |>
> |>  We now have classes for most of the SEXP types:
> |>
> |>  SYMSXP          Symbol
> |>  LISTSXP         Pairlist
> |>  CLOSXP          Function
> |>  ENVSXP          Environment
> |>  PROMSXP         Promise
> |>  LANGSXP         Language
> |>  SPECIALSXP      Function
> |>  BUILTINSXP      Function
> |>  LGLSXP          LogicalVector
> |>  INTSXP          IntegerVector
> |>  REALSXP         NumericVector
> |>  CPLXSXP         ComplexVector
> |>  STRSXP          CharacterVector
> |>  VECSXP          GenericVector a.k.a List
> |>  EXPRSXP         ExpressionVector
> |>  EXTPTRSXP       XPtr
> |>  WEAKREFSXP      WeakReference
> |>  RAWSXP          RawVector
> |>
> |>  I have also added methods to deal with S4 objects (in the RObject class
> |>  since an S4 object can be of any SEXP type): hasSlot, isS4 and slot.
> |>
> |>
> |>  For GenericVector and CharacterVector, I have implemented the proxy
> |>  pattern as described in item 30 of More Effective C++, so that we can do :
> |>
> |>  CharacterVector x(10) ; /* create a character vector of 10 strings */
> |>  x[0] ; /* gets the first element */
> |>  x[1] = "foo" ; /* sets the second element */
> |>
> |>  List y(3) ;
> |>  y[0] = 1 ; /* 1 gets wrap()'ed into a IntegerVector */
> |>  y[1] = "foo" ; /* foo gets wrap()'ed into a CharacterVector */
> |>  y[2] = false ; /* false gets wrap()'ed into a LogicalVector */
> |>
> |>  As usual, many examples have been added in the unit tests.
> |>
> |>  Romain


-- 
Romain Francois
Professional R Enthusiast
+33(0) 6 28 91 30 30
http://romainfrancois.blog.free.fr
|- http://tr.im/JFqa : R Journal, Volume 1/2, December 2009
|- http://tr.im/IW9B : C++ exceptions at the R level
`- http://tr.im/IlMh : CPP package: exposing C++ objects