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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_protection_Armor_H
#define Rcpp_protection_Armor_H
namespace Rcpp {
template <typename T>
class Armor {
public:
Armor() : data(){
init(R_NilValue) ;
}
template <typename U> Armor( U x );
inline operator SEXP() const {
return data ;
}
template <typename U>
inline Armor& operator=( const U& x ) ;
~Armor(){
UNPROTECT(1) ;
}
private:
void init(SEXP x){
PROTECT_WITH_INDEX( data = x, &index ) ;
}
SEXP data ;
PROTECT_INDEX index ;
// not defined on purpose
Armor(const Armor&) ;
Armor& operator=(const Armor&) ;
} ;
}
#endif
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