Re: [R] dyn.load problem
Hi, Uwe.
Thank you for help.
Yesterday another R-user Mr. Ramasamy told me to do a simple program
such as (changing too the directories, now C:/minhadll/):
/*file conv.c*/
#include R.h
void printhello (){
Rprintf(%s, hello world\n);
}
When I use C:\R\rw2000\binRCMD SHLIB -o c:/minhadll/meuteste.dll
c:/minhadll/conv.c
to compile this one. Below is the output.
C:\R\rw2000\bin RCMD SHLIB -o c:/minhadll/meuteste.dll c:/minhadll/conv.c
making c:/minhadll/conv.d from c:/minhadll/conv.c
gcc -IC:/R/RW2000/include -Wall -O2 -c c:/minhadll/conv.c -o
c:/minhadll/conv.o
ar cr c:/minhadll/meuteste.a c:/minhadll/conv.o
ranlib c:/minhadll/meuteste.a
gcc --shared -s -o c:/minhadll/meuteste.dll c:/minhadll/meuteste.def
c:/minhadll/meuteste.a -LC:/R/RW2000/src/gnuwin32 -lg2c -lR
The result is meuteste.dll located in C:/minhadll/meuteste.dll. Now,
talking about paths:
I believe that I have make a correct way... but I'll list here to you:
SET PATH=C:\Rtools\;C:\Perl\bin\;C:\MinGW\bin;C:\R\rw2000\include\
Is it correct?
Thank you again for help me. I'm trying to do a dll for 3 weeks or more,
without a good result.
PS: The same error dyn.load appears
O. Neto
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[R] dyn.load problem
Hi R-Users
I wrote 1 week ago asking about a message that appears when I try run
dyn.load.
I'm trying to do an example in C code from Writing R Extension to
learn how to do it.
I have R 2.0.0, Rtools, Perl and MinGW as describe in
http://www.murdoch-sutherland.com/Rtools/ with path sets.
When I use C:\R\rw2000\binRCMD SHLIB -o C:/dev-cpp/teste.dll
C:/dev-cpp/conv.c
a teste.dll is created without error and located in that directory, but when
I use it in RGui with Change dir set to C:/dev-cpp :
dyn.load(teste.dll) results:
Error in dyn.load(x, as.logical(local), as.logical(now)) :
unable to load shared library C:/Dev-Cpp/teste:
LoadLibrary failure: Parâmetro incorreto. (Incorrect Parameter)
My C code is (extracted form Writing R Extension):
#include R.h
#include Rinternals.h
SEXP convolve2(SEXP a, SEXP b)
{
R_len_t i, j, na, nb, nab;
double *xa, *xb, *xab;
SEXP ab;
PROTECT(a = coerceVector(a, REALSXP));
PROTECT(b = coerceVector(b, REALSXP));
na = length(a); nb = length(b); nab = na + nb - 1;
PROTECT(ab = allocVector(REALSXP, nab));
xa = REAL(a); xb = REAL(b);
xab = REAL(ab);
for(i = 0; i nab; i++) xab[i] = 0.0;
for(i = 0; i na; i++)
for(j = 0; j nb; j++) xab[i + j] += xa[i] * xb[j];
UNPROTECT(3);
return(ab);
}
I´m using RCMD under Windows ME.
How can I fix this? Someone can help me ? Prof. Ripley told me to catch
more information debbuging this DLL. Is it hard to do this one under
Windows? It´s necessary modify files SHLIB or MkDLL?
Thanks
O. Neto
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[R] Problem with dyn.load()
Hi!
I am studying C language to run with R 2.0.0. My system (Windows ME /BR) is
configured to run RCMD ( I have installed ActivePerl, Rtools and MinGW as
indicated in http://www.murdoch-sutherland.com/Rtools/ an with correct path).
I would like run the coded write below named conv.c (Example from Write R
Extension) :
#include R.h
#include Rinternals.h
SEXP convolve2(SEXP a, SEXP b)
{
R_len_t i, j, na, nb, nab;
double *xa, *xb, *xab;
SEXP ab;
PROTECT(a = coerceVector(a, REALSXP));
PROTECT(b = coerceVector(b, REALSXP));
na = length(a); nb = length(b); nab = na + nb - 1;
PROTECT(ab = allocVector(REALSXP, nab));
xa = REAL(a); xb = REAL(b);
xab = REAL(ab);
for(i = 0; i nab; i++) xab[i] = 0.0;
for(i = 0; i na; i++)
for(j = 0; j nb; j++) xab[i + j] += xa[i] * xb[j];
UNPROTECT(3);
return(ab);
}
When I use C:\Arquiv~1\R\rw2000\binRCMD SHLIB -o C:/dev-cpp/teste.dll
c:/dev-cpp/conv.c
a teste.dll is created without error and located in that directory, but when I
use it in RGui with Change dir set to C:/dev-cpp :
dyn.load(teste) results:
Error in dyn.load(x, as.logical(local), as.logical(now)) :
unable to load shared library C:/Dev-Cpp/teste:
LoadLibrary failure: Parâmetro incorreto. (Incorrect Parameter)
I tried find help in R-help, but none answers my questions.
My doubts are: Why does it occur? How do I fix it? How I can include
directives in RCMD -SHLIB, for example, conv.def file to mangling names? It is
editing Makevars.win?
If anybody have time to answer my question, I apreciate.
Thanks,
O. Neto
PS: There is any discussion list of R in portuguese? I can't find one.
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Re: [R] Problem with dyn.load()
Prof. Ripley, I would, initially, thank you for help me. I did what you did say, I called that dll ( by teste.dll as wrote in ?dyn.load). It did not work. I make a new dll for testing and again, it didn´t work, the same message appears. I don´t know how I fix it. I have no idea. I´ll read all writing R extension again. I believe that my mistake is in config MKRules. Thank you again for spend your time with my doubts. I´m grateful. O. Neto __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
