[Rd] How to call R from C
Prof Brian Ripley
ripley at stats.ox.ac.uk
Tue Nov 23 13:23:44 CET 2010
On Tue, 23 Nov 2010, Wonjae Lee wrote:
> Thank you!
> I tried to build a C code below, and I got a error message.
How?: you have not shown us the commands you used.
At a guess you are
on Windows and didn't tell us (see the posting quide)
using MSVC (not supported but may work -- just don't ask us for help)
not linking against R.dll.
There are examples in the tests/Embedding directory of the R sources
-- and they do work on Windows.
> Thank you for your help in advance.
> <C code>
> #include "embeddedRCall.h"
> int main(int argc, char *argv)
> eval_R_command("print", argc, argv);
> <error message>
> --------------------Configuration: Rtest - Win32 Debug--------------------
> Rtest.obj : error LNK2001: unresolved external symbol _eval_R_command
> Debug/Rtest.exe : fatal error LNK1120: 1 unresolved externals
> Error executing link.exe.
> Rtest.exe - 2 error(s), 0 warning(s)
> View this message in context: http://r.789695.n4.nabble.com/How-to-call-R-from-C-tp3053943p3054977.html
> Sent from the R devel mailing list archive at Nabble.com.
> R-devel at r-project.org mailing list
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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