[Rcpp-devel] Request for help with compiling Rcpp example
Jian Kang
allenhahaha at gmail.com
Fri Oct 14 16:00:19 CEST 2011
Hi, Dirk,
Sorry for delay.
I tried to install the R and Rtools again, and run the program again, then
it works.
But here is some warnings, I am not sure whether this is OK in the future.
Compilation argument:
C:/R/Rsoft/bin/i386/R CMD SHLIB file7e446574.cpp 2>
file7e446574.cpp.err.txt
g++ -I"C:/R/Rsoft/include" -I"C:/R/Rsoft/library/Rcpp/include" -O2
-Wall -c file7e446574.cpp -o file7e446574.o
g++ -shared -s -static-libgcc -o file7e446574.dll tmp.def file7e446574.o
C:/R/Rsoft/library/Rcpp/lib/i386/libRcpp.a -LC:/R/Rsoft/bin/i386 -lR
cygwin warning:
MS-DOS style path detected: C:/R/Rsoft/etc/i386/Makeconf
Preferred POSIX equivalent is: /cygdrive/c/R/Rsoft/etc/i386/Makeconf
CYGWIN environment variable option "nodosfilewarning" turns off this
warning.
Consult the user's guide for more details about POSIX paths:
http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
Thank you very much.
Best,
Kent
On Thu, Oct 13, 2011 at 6:46 PM, Dirk Eddelbuettel <edd at debian.org> wrote:
>
> On 13 October 2011 at 18:15, Jian Kang wrote:
> | Thanks for your reply.
> |
> | Here is the response of 'Hello World' program:
> |
> | > src='#include <iostream>
> | + using namespace std;
> | + void main()
> | + {
> | + cout << "Hello World!" << endl;
> | + cout << "Welcome to C++ Programming" << endl;
> | + }'
> | >
> | > fx <- cxxfunction(src,plugin = "Rcpp",verbose=T)
>
> PBKAC -- wrong call of cxxfunction(). You can see below how the generated
> code does *not* include your actual function.
>
> The correct idiom is
>
> fx <- cxxfunction(signature(), body=src,plugin = "Rcpp",verbose=TRUE)
>
> Dirk
>
>
> | >> setting environment variables:
> | PKG_LIBS = C:/R/Rsoft/library/Rcpp/lib/i386/libRcpp.a
> |
> | >> LinkingTo : Rcpp
> | CLINK_CPPFLAGS = -I"C:/R/Rsoft/library/Rcpp/include"
> |
> | >> Program source :
> |
> | 1 :
> | 2 : // includes from the plugin
> | 3 :
> | 4 : #include <Rcpp.h>
> | 5 :
> | 6 :
> | 7 : #ifndef BEGIN_RCPP
> | 8 : #define BEGIN_RCPP
> | 9 : #endif
> | 10 :
> | 11 : #ifndef END_RCPP
> | 12 : #define END_RCPP
> | 13 : #endif
> | 14 :
> | 15 : using namespace Rcpp;
> | 16 :
> | 17 :
> | 18 : // user includes
> | 19 :
> | 20 :
> | 21 : // declarations
> | 22 : extern "C" {
> | 23 : SEXP file3a1c304e( ) ;
> | 24 : }
> | 25 :
> | 26 : // definition
> | 27 :
> | 28 : SEXP file3a1c304e( ){
> | 29 : BEGIN_RCPP
> | 30 :
> | 31 : END_RCPP
> | 32 : }
> | 33 :
> | 34 :
> | Compilation argument:
> | C:/R/Rsoft/bin/i386/R CMD SHLIB file3a1c304e.cpp 2>
> | file3a1c304e.cpp.err.txt
> | g++ -I"C:/R/Rsoft/include" -I"C:/R/Rsoft/library/Rcpp/include"
> -O2
> | -Wall -c file3a1c304e.cpp -o file3a1c304e.o
> | g++ -shared -s -static-libgcc -o file3a1c304e.dll tmp.def file3a1c304e.o
> C:/R/
> | Rsoft/library/Rcpp/lib/i386/libRcpp.a -LC:/R/Rsoft/bin/i386 -lR
> | cygwin warning:
> | MS-DOS style path detected: C:/R/Rsoft/etc/i386/Makeconf
> | Preferred POSIX equivalent is: /cygdrive/c/R/Rsoft/etc/i386/Makeconf
> | CYGWIN environment variable option "nodosfilewarning" turns off this
> | warning.
> | Consult the user's guide for more details about POSIX paths:
> | http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
> | Error in as.function.default(c(value, if (is.null(bd) || is.list(bd))
> list(bd)
> | else bd), :
> | invalid formal argument list for "function"
> |
> | Here, I also tried the test by Hadley,
> |
> | _devel()
> | cygwin warning:
> | MS-DOS style path detected: C:/R/Rsoft/etc/i386/Makeconf
> | Preferred POSIX equivalent is: /cygdrive/c/R/Rsoft/etc/i386/Makeconf
> | CYGWIN environment variable option "nodosfilewarning" turns off this
> | warning.
> | Consult the user's guide for more details about POSIX paths:
> | http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
> | gcc -I"C:/R/Rsoft/include" -I"C:/R/Rsoft/library/Rcpp/include"
> -O3
> | -Wall -std=gnu99 -c foo.c -o foo.o
> | gcc -shared -s -static-libgcc -o foo.dll tmp.def foo.o
> C:/R/Rsoft/library/Rcpp/
> | lib/i386/libRcpp.a -LC:/R/Rsoft/bin/i386 -lR
> | [1] TRUE
> |
> | Sorry that I don't really get it how to rebuild R packages from source.
> |
> | Thanks,
> |
> | Kent
> |
> | On Thu, Oct 13, 2011 at 5:11 PM, Hadley Wickham <hadley at rice.edu> wrote:
> |
> | > My best guess is that you have not installed the Rtools correctly.
> Can
> | you
> | > compile a simple 'hello, world' example in C or C++? Can you
> rebuild R
> | > packages from source?
> |
> | I wrote an function to check that you have a valid R development
> | environment (with help from Simon Urbanek) for devtools. See code
> | below - and check with has_devel()
> |
> | Hadley
> |
> |
> | has_devel <- function() {
> | foo_path <- file.path(tempdir(), "foo.c")
> |
> | cat("void foo(int *bar) { *bar=1; }\n", file = foo_path)
> | on.exit(unlink(foo_path))
> |
> | R("CMD SHLIB foo.c", tempdir())
> | dylib <- file.path(tempdir(), paste("foo", .Platform$dynlib.ext,
> sep=''))
> | on.exit(unlink(dylib), add = TRUE)
> |
> | dyn.load(dylib)
> | on.exit(dyn.unload(dylib), add = TRUE)
> |
> | stopifnot(do.call(".C", list("foo",0L))[[1]] == 1L)
> | TRUE
> | }
> |
> | R <- function(options, path = tempdir()) {
> | r_path <- shQuote(file.path(R.home("bin"), "R"))
> | in_dir(path, system_check(paste(r_path, options)))
> | }
> |
> | system_check <- function(cmd) {
> | res <- system(cmd)
> | if (res != 0) {
> | stop("Command failed (", res, ")", call. = FALSE)
> | }
> | invisible(TRUE)
> | }
> |
> | in_dir <- function(dir, code) {
> | cur <- getwd()
> | setwd(dir)
> | on.exit(setwd(cur))
> |
> | force(code)
> | }
> |
> | --
> | Assistant Professor / Dobelman Family Junior Chair
> | Department of Statistics / Rice University
> | http://had.co.nz/
> | _______________________________________________
> | Rcpp-devel mailing list
> | Rcpp-devel at lists.r-forge.r-project.org
> |
> https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
> |
> |
>
> --
> "Outside of a dog, a book is a man's best friend. Inside of a dog, it is
> too
> dark to read." -- Groucho Marx
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.r-forge.r-project.org/pipermail/rcpp-devel/attachments/20111014/7090d1cf/attachment.htm>
More information about the Rcpp-devel
mailing list