Dear People,
I'm trying to write an R wrapper for a C++ library, using .Call. I've never used .Call before. I'm currently having some difficulties converting a R character string to a C one.
Here is a little test program.
#include <R.h> #include <Rinternals.h> #include <stdio.h>
SEXP testfn(SEXP chstr)
{
char * charptr = CHAR(chstr);
printf("%s", charptr);
}This compiles without problems, but when I try to run this as
.Call("testfn", "foo")
I get a segmentation fault.
I am sure I am making an obvious mistake, but can someone help me to sort it out? Thanks in advance. Please cc me, I'm not subscribed.
Faheem.
______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
