86 lines
2.2 KiB
C++
86 lines
2.2 KiB
C++
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// -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; indent-tabs-mode: nil; -*-
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//
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// rcpp_module.cpp: Rcpp R/C++ interface class library -- Rcpp Module examples
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//
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// Copyright (C) 2010 - 2012 Dirk Eddelbuettel and Romain Francois
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//
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// This file is part of Rcpp.
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//
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// Rcpp is free software: you can redistribute it and/or modify it
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// under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 2 of the License, or
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// (at your option) any later version.
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//
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// Rcpp is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Rcpp. If not, see <http://www.gnu.org/licenses/>.
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#include <Rcpp.h>
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std::string hello() {
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throw std::range_error( "boom" ) ;
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}
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int bar(int x) {
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return x*2;
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}
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double foo(int x, double y) {
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return x * y;
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}
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void bla() {
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Rprintf("hello\\n");
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}
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void bla1(int x) {
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Rprintf("hello (x = %d)\\n", x);
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}
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void bla2( int x, double y) {
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Rprintf("hello (x = %d, y = %5.2f)\\n", x, y);
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}
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class World {
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public:
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World() : msg("hello") {}
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void set(std::string msg) { this->msg = msg; }
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std::string greet() { return msg; }
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private:
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std::string msg;
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};
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RCPP_MODULE(yada){
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using namespace Rcpp ;
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function("hello" , &hello , "documentation for hello ");
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function("bla" , &bla , "documentation for bla ");
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function("bla1" , &bla1 , "documentation for bla1 ");
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function("bla2" , &bla2 , "documentation for bla2 ");
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// with formal arguments specification
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function("bar" , &bar ,
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List::create( _["x"] = 0.0),
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"documentation for bar ");
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function("foo" , &foo ,
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List::create( _["x"] = 1, _["y"] = 1.0),
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"documentation for foo ");
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class_<World>("World")
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// expose the default constructor
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.constructor()
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.method("greet", &World::greet , "get the message")
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.method("set", &World::set , "set the message")
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;
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}
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