[Rcpp-commits] r1127 - pkg/Rcpp/inst/announce

[noreply at r-forge.r-project.org]

Author: romain
Date: 2010-04-28 10:59:46 +0200 (Wed, 28 Apr 2010)
New Revision: 1127

Added:
   pkg/Rcpp/inst/announce/ANNOUNCE-0.6.0.txt
Log:
also announce 0.6.0

Added: pkg/Rcpp/inst/announce/ANNOUNCE-0.6.0.txt
===================================================================
--- pkg/Rcpp/inst/announce/ANNOUNCE-0.6.0.txt	                        (rev 0)
+++ pkg/Rcpp/inst/announce/ANNOUNCE-0.6.0.txt	2010-04-28 08:59:46 UTC (rev 1127)
@@ -0,0 +1,54 @@
+New Rcpp versions 0.6.0 and 0.6.1
+---------------------------------
+		
+The Rcpp package provides C++ classes that greatly facilitate interfacing C
+or C++ code in R packages using the .Call() interface provided by R.
+
+Rcpp provides matching C++ classes for a large number of basic R data
+types. Hence, a package author can keep his data in normal R data structure
+without having to worry about translation or transfer to C++. At the same
+time, the data structures can be accessed as easily at the C++ level, and
+used in the normal manner.
+
+The mapping of data types works in both directions. It is as straightforward
+to pass data from R to C++, as it is it return data from C++ to R.  The
+following two sections list supported data types.
+
+Transfer from R to C++:
+Standard R datatypes that are understood in C++ are
+ o named lists containing numeric (i.e. floating point), integer,
+   character, logical (i.e. boolean) or Date and Datetime (i.e. POSIXct at
+   the microsecond granularity) arguments;
+ o data frames containing numeric, integer, logical, character,
+   Date, Datetime or Factor columns;
+ o named vectors containing numeric or integer values,
+ o vectors and matrices of different values
+ o character strings
+
+Transfer from C++ to R:
+Standard C++ datatypes can be returned to R in a named list, the most
+general data type in R.  Permissible components of the returns list
+are the following C++ types:
+ o double (scalar as well as vectors and vectors of vectors),
+ o int (scalar as well as vectors and vectors of vectors), string,
+ o STL vector types and vector<vector> types of int and double
+ o STL vector of strings
+ o internal Rcpp types RcppDate, RcppDateVector, RcppDatetime,
+   RcppDatetimeVector, RcppStringVector, RcppVector of int or double,
+   RcppMatrix of int or double, RcppFrame
+
+Rcpp was initially written by Dominick Samperi as part of his contributions
+to RQuantLib, and later released as a standalone package (under both the Rcpp
+and RcppTemplate names).   Its development had ceased in late 2006.
+
+As of November 2008, I have made new release with substantially expanded
+documentation, simpler yet more comprehensive build structure leading to
+easier use of Rcpp from other packages, and support for Windows, Linux and
+Mac OS X (with special thanks to Simon for some extended cluebat waving).
+
+More information for Rcpp can be found at
+ o the package homepage at http://dirk.eddelbuettel.com/code/rcpp.html
+ o the R-forge repository at https://r-forge.r-project.org/projects/rcpp/
+ o the CRAN page at http://cran.r-project.org/web/packages/Rcpp/index.html
+
+Regards,  Dirk