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// Copyright (C) 2013 Romain Francois
//
// This file is part of Rcpp.
//
// Rcpp is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 2 of the License, or
// (at your option) any later version.
//
// Rcpp is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Rcpp. If not, see <http://www.gnu.org/licenses/>.
#ifndef RCPP_INTERNAL_GREEDYVECTOR_H
#define RCPP_INTERNAL_GREEDYVECTOR_H
namespace Rcpp {
template <typename T, typename CLASS>
class GreedyVector {
public:
typedef typename std::vector<T>::iterator iterator;
typedef typename std::vector<T>::const_iterator const_iterator;
GreedyVector(SEXP vec) : v(0){
if (!Rf_isNumeric(vec) || Rf_isMatrix(vec) || Rf_isLogical(vec))
throw std::range_error("invalid numeric vector in constructor");
int len = Rf_length(vec);
if (len == 0)
throw std::range_error("null vector in constructor");
v.resize(len);
for (int i = 0; i < len; i++)
v[i] = T( static_cast<double>(REAL(vec)[i]));
}
GreedyVector(int n) : v(n){}
inline const T& operator()(int i) const{
return at(i) ;
}
inline T& operator()(int i){
return at(i) ;
}
inline const T& operator[](int i) const{
return at(i) ;
}
inline T& operator[](int i){
return at(i) ;
}
inline int size() const {
return (int)v.size();
}
inline iterator begin(){ return v.begin(); }
inline iterator end(){ return v.end(); }
inline const_iterator begin() const { return v.begin(); }
inline const_iterator end() const { return v.end(); }
inline operator SEXP() const {
return wrap( v ) ;
}
protected:
std::vector<T> v;
private:
const T& at(int i) const{
if (i < 0 || i >= static_cast<int>(v.size())) {
std::ostringstream oss;
oss << "subscript out of range: " << i;
throw std::range_error(oss.str());
}
return v[i];
}
T& at(int i) {
if (i < 0 || i >= static_cast<int>(v.size())) {
std::ostringstream oss;
oss << "subscript out of range: " << i;
throw std::range_error(oss.str());
}
return v[i];
}
} ;
}
#endif
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