Message-ID: <5.0.2.1.0.20010610225204.00a598e0@eno.princeton.edu>
Date: 2001-06-11T03:52:42Z
From: Richard Condit
Subject: load C code into R
I am trying to load C routines into R on windows, going through the the
book S programming and the R manual, but I know I am missing some steps.
I created a win32 DLL project in Visual C++ (ver. 6.0). It consists of one
simple routine named test which accepts one *integer argument and one
*double argument and performs a trivial computation. The dll is named
test.dll.
In R1022 for Windows, I run
>dyn.load("d:/programs/library/test/test.dll")
>testr_function(a,x)
.C"d:/programs/library/test/test",as.integer(a),as.double(x))
These are both accepted, and I can use dyn.unload as well with test.dll. I
notice that while loaded, Visual C++ cannot recompile test.dll.
But when I try
>testr(10,x)
I get the message ?Error in .C("test", as.integer(a),as.double(x)) :
C/Fortran function name not in load table?.
I know I need a link step, or an install step, but I am missing something
in the instructions. Perhaps just a quick piece of advice could get me to
the next stage
Richard Condit
Smithsonian Tropical Research Institute
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