[R] Rcpp segmentation faults on the simplest code

[Dirk Eddelbuettel]

On 14 April 2011 at 03:56, didu wrote:
| Hi all,
| 
| I'm new to R and Rcpp, and I'm trying to learn Rcpp with the simplest code
| possible. My goal is to be able to call R functions from C++.

Just to set the record straight here for purpose of the mailing list archive:
the original poster had a severe misunderstanding of Rcpp (which is used to
extend R with C++ code) and RInside (which is used to embed R in standalone
C++ code).

The four-liner below is nonsensical as posted, yet its authors is now on his
merry way thanks to a discussion on the rcpp-devel list where this should
been posted in the first place.

Dirk

| The code I'm trying to run is:
| 
| 
| #include 
| #include 
| #include 
| #include 
| 
| int main(int argc, char* argv[])
| {
| 	Rcpp::NumericVector v(1);
| 	return 0;
| }
| 
| 
| It compiles and links fine. However, as soon as I run it, it segfaults. The
| following is the gdb trace:
| 
| <co(gdb) run
| Starting program: /home/jingy/tmp/stl 
| [Thread debugging using libthread_db enabled]
| 
| Program received signal SIGSEGV, Segmentation fault.
| 0x00002aaaabb86d70 in ?? () from /usr/lib/libR.so
| (gdb) up
| #1  0x00002aaaabb8849b in Rf_allocVector () from /usr/lib/libR.so
| (gdb) 
| #2  0x0000000000401618 in Vector (this=0x7fffffffd880, size=@0x7fffffffd89c)
| at /usr/local/lib/R/site-library/Rcpp/include/Rcpp/vector/Vector.h:130
| 130	    	RObject::setSEXP( Rf_allocVector( RTYPE, size) ) ;
| (gdb) 
| #3  0x0000000000401438 in main (argc=1, argv=0x7fffffffd998) at stl.cpp:8
| 8		Rcpp::NumericVector v(1);
| (gdb) 
| Initial frame selected; you cannot go up.de>
| 
| 
| I installed the following R packages using "dpkg -i" on my Ubuntu 9.04 amd
| 64 OS:
| 
| r-base-core_2.12.1-1karmic0_amd64.deb
| r-base-core-dbg_2.12.1-1karmic0_amd64.deb
| r-base-dev_2.12.1-1karmic0_all.deb
| 
| i installed Rcpp_0.9.4.tar.gz using the command:
| 
| R CMD INSTALL Rcpp_0.9.4.tar.gz
| 
| Any help would be greatly appreciated.
| 
| Thanks a lot.
| 
| -D
| 
| --
| View this message in context: http://r.789695.n4.nabble.com/Rcpp-segmentation-faults-on-the-simplest-code-tp3449290p3449290.html
| Sent from the R help mailing list archive at Nabble.com.
| 
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| and provide commented, minimal, self-contained, reproducible code.

-- 
Dirk Eddelbuettel | edd at debian.org | http://dirk.eddelbuettel.com