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<p class=MsoNormal><span lang=EN-US>Hello,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>I’ve just started with Rcpp. When I
compile my file mattias.cpp, using: “R CMD SHLIB mattias.cpp”, I
get the error below. The source code of the file mattias.cpp is also written
below. What can the problem be?<o:p></o:p></span></p>
<p class=MsoNormal><b><span lang=EN-US><o:p> </o:p></span></b></p>
<p class=MsoNormal><b><span lang=EN-US>Source code of mattias.cpp:<o:p></o:p></span></b></p>
<p class=MsoNormal><span lang=EN-US>#include <Rcpp.h><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>SEXP firstfunction(SEXP nvec, SEXP ivec,
SEXP svec, SEXP nmat)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>{<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> SEXP
rl=R_NilValue;<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> RcppVector<double>
nv(nvec);<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> </span>RcppVector<int>
iv(ivec);<o:p></o:p></p>
<p class=MsoNormal> RcppStringVector sv(svec);<o:p></o:p></p>
<p class=MsoNormal> <span lang=EN-US>RcppMatrix<double>
nm(nmat);<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US> return rl;<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>}<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><b><span lang=EN-US>The compilation error:<o:p></o:p></span></b></p>
<p class=MsoNormal><span lang=EN-US>g++
-I"C:/PROGRA~1/R/R-210~1.0/include" -O2 -Wall -c mattias.cpp
-o mattias.o<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>mattias.cpp: In function 'SEXPREC* firstfunction(SEXPREC*,
SEXPREC*, SEXPREC*, SEXPREC*)':<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>mattias.cpp:9: warning: control reaches end
of non-void function<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>g++ -shared -s -o mattias.dll tmp.def
mattias.o -LC:/PROGRA~1/R/R-210~1.0/bin -lR<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>mattias.o:mattias.cpp:(.text+0xc0):
undefined reference to `RcppVector<double>::RcppVector(SEXPREC*)'<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>mattias.o:mattias.cpp:(.text+0xd2):
undefined reference to `RcppVector<int>::RcppVector(SEXPREC*)'<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>mattias.o:mattias.cpp:(.text+0xe4):
undefined reference to `RcppStringVector::RcppStringVector(SEXPREC*)'<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>mattias.o:mattias.cpp:(.text+0xfd):
undefined reference to `RcppMatrix<double>::RcppMatrix(SEXPREC*)'<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>mattias.o:mattias.cpp:(.text+0x10f):
undefined reference to `RcppStringVector::~RcppStringVector()'<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>mattias.o:mattias.cpp:(.text+0x142):
undefined reference to `RcppStringVector::~RcppStringVector()'<o:p></o:p></span></p>
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