I think I did.
But if I don't, (1) my OS is Linux (Debian) kernel 2.6.8, R version 2.1.1.
(2) I generate the shared lib with a cutom makefile:
FC = g77
CC = gcc
RC = R CMD SHLIB
CFLAGS = -Df2cFortran -I/usr/local/lib/R/include -I/usr/local/include -g3
-shared -fPIC
FFLAGS = -g3 -shared -fPIC
al
Ricardo Luiz Andrade Abrantes <[EMAIL PROTECTED]> writes:
> Hello there!
> I almost don't deal with SEXPs. The function's name is main() it returns a
> SEXP wich is R_NilValue, thats all I use of SEXPs. This function call an
> optimization packge and the output goes all to a text file.
> Well, I
Fortran routine
> requires.
>
> I don't understand how you can call the "same" function from C. How do you
> deal with SEXPs?
>
> Reid Huntsinger
>
> Reid Huntsinger
> -Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
>
ction from C. How do you
deal with SEXPs?
Reid Huntsinger
Reid Huntsinger
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Ricardo Luiz Andrade Abrantes
Sent: Tuesday, August 30, 2005 4:33 PM
To: r-devel@r-project.org
Subject: Re: [Rd] .Call and Segmentat
On Tue, 31 Aug 2005, Peter Dalgaard wrote:
> Well, did you try running under a debugger?
>
> R -d gdb
>
> then "bt" after the segfault. (Make sure that things are compiled with
> -g option)
It would also be worth renaming the the function -- while I don't see
exactly how it could be causing the
Ricardo Luiz Andrade Abrantes <[EMAIL PROTECTED]> writes:
> Hello to everybody!
> After reading all the C code, checking for problems, and find nothing, I
> decided something a little bit different...
> If my ".so" library works in a wrog way in R it should do the same in C. So
> I created a C p
Hello to everybody!
After reading all the C code, checking for problems, and find nothing, I
decided something a little bit different...
If my ".so" library works in a wrog way in R it should do the same in C. So
I created a C program that loads my library file and the executes the same
function
I forgot to put the folowing includes in my last post:
#include
#include
Thanks,
Ricardo
-- Forwarded message --
From: Ricardo Luiz Andrade Abrantes <[EMAIL PROTECTED]>
Date: Aug 30, 2005 1:37 PM
Subject: Re: [Rd] .Call and Segmentation Fault
To: Simon Urbanek &
Hi Simon!
You are right!
Ok, here it is (a little resumed):
#include
#include
#include
#include
#include "interface.h"
SEXP main() {
int gtype, inform, m, n, maxoutit, maxtotit, maxtotfc, outiter,
totcgcnt, totfcnt, totgcnt, totiter, iprint, ncomp, i;
double f,nalpsupn,epsfeas,epsopt,snorm;
> It cannot be .Call: your .Call passed no parameters so there was nothing
> to be uninitialized. I did ask you why you were doing that.
This .Call without parameters is just for a test. I am constructing an
interface to this C/Fortran optimization package, and because this
segmentation fault pr
On Sat, 27 Aug 2005, Ricardo Luiz Andrade Abrantes wrote:
> Hi!
> Yes, I am returning a SEXP from the functions called from R, and the
> problem occurs before (thousands of iterations before) the return
> point.
> In fact I runned valgrind into R and when I call ".Call(...) " I got
> many errors l
Hi!
Yes, I am returning a SEXP from the functions called from R, and the
problem occurs before (thousands of iterations before) the return
point.
In fact I runned valgrind into R and when I call ".Call(...) " I got
many errors like:
==4324== Use of uninitialised value of size 8
==4324==at 0x1CB
Hello to everyone!
I use .Call to call a C function without arguments wich calls a
fortran optimization package. My C function uses others C and Fortran
functions and it works fine when I call it from a main() in a C
program. But when I call it from R with
.Call("name_of_the_c_function"), R gives m
Are you returning a SEXP? .Call (unlike .C) expects a SEXP return
value. It sounds like you're returning garbage and R is choking on
that when it tries to use the address as a SEXP.
On Aug 26, 2005, at 3:19 PM, Ricardo Luiz Andrade Abrantes wrote:
> Hello to everyone!
> I use .Call to call a
Hello to everyone!
I use .Call to call a C function without arguments wich calls a
fortran optimization package. My C function uses others C and Fortran
functions and it works fine when I call it from a main() in a C
program. But when I call it from R with
.Call("name_of_the_c_function"), R gives m
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