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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_api_meat_DottedPairImpl_h
#define Rcpp_api_meat_DottedPairImpl_h
namespace Rcpp{
template <typename CLASS>
template <typename T>
void DottedPairImpl<CLASS>::push_front( const T& object){
CLASS& ref = static_cast<CLASS&>(*this) ;
ref.set__( grow(object, ref.get__() ) ) ;
}
template <typename CLASS>
template <typename T>
void DottedPairImpl<CLASS>::push_back( const T& object){
CLASS& ref = static_cast<CLASS&>(*this) ;
if( ref.isNULL() ){
ref.set__( grow( object, ref.get__() ) ) ;
} else {
SEXP x = ref.get__() ;
/* traverse the pairlist */
while( !Rf_isNull(CDR(x)) ){
x = CDR(x) ;
}
Shield<SEXP> tail( grow( object, R_NilValue ) );
SETCDR( x, tail ) ;
}
}
template <typename CLASS>
template <typename T>
void DottedPairImpl<CLASS>::insert( const size_t& index, const T& object) {
CLASS& ref = static_cast<CLASS&>(*this) ;
if( index == 0 ) {
push_front( object ) ;
} else {
if( ref.isNULL( ) ) {
throw index_out_of_bounds("Object being inserted into Dotted Pair is null.");
}
if( static_cast<R_xlen_t>(index) > ::Rf_xlength(ref.get__()) ) {
const char* fmt = "Dotted Pair index is out of bounds: "
"[index=%i; extent=%i].";
throw index_out_of_bounds(fmt,
static_cast<R_xlen_t>(index),
::Rf_xlength(ref.get__()) ) ;
}
size_t i=1;
SEXP x = ref.get__() ;
while( i < index ){
x = CDR(x) ;
i++;
}
Shield<SEXP> tail( grow( object, CDR(x) ) );
SETCDR( x, tail ) ;
}
}
template <typename CLASS>
template <typename T>
void DottedPairImpl<CLASS>::replace( const int& index, const T& object ) {
CLASS& ref = static_cast<CLASS&>(*this) ;
if( static_cast<R_xlen_t>(index) >= ::Rf_xlength(ref.get__()) ) {
const char* fmt = "Dotted Pair index is out of bounds: "
"[index=%i; extent=%i].";
throw index_out_of_bounds(fmt,
static_cast<R_xlen_t>(index),
::Rf_xlength(ref.get__()) ) ;
}
Shield<SEXP> x( pairlist( object ) );
SEXP y = ref.get__() ;
int i=0;
while( i<index ){ y = CDR(y) ; i++; }
SETCAR( y, CAR(x) );
SET_TAG( y, TAG(x) );
}
template <typename CLASS>
void DottedPairImpl<CLASS>::remove( const size_t& index ) {
CLASS& ref = static_cast<CLASS&>(*this) ;
if( static_cast<R_xlen_t>(index) >= Rf_xlength(ref.get__()) ) {
const char* fmt = "Dotted Pair index is out of bounds: "
"[index=%i; extent=%i].";
throw index_out_of_bounds(fmt,
static_cast<R_xlen_t>(index),
::Rf_xlength(ref.get__()) ) ;
}
if( index == 0 ){
ref.set__( CDR( ref.get__() ) ) ;
} else{
SEXP x = ref.get__() ;
size_t i=1;
while( i<index ){ x = CDR(x) ; i++; }
SETCDR( x, CDDR(x) ) ;
}
}
} // namespace Rcpp
#endif
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