Rcpp Version 0.12.12
rep_len.h
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1 // -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; tab-width: 8 -*-
2 //
3 // rep_len.h: Rcpp R/C++ interface class library -- rep_len
4 //
5 // Copyright (C) 2010 - 2011 Dirk Eddelbuettel and Romain Francois
6 //
7 // This file is part of Rcpp.
8 //
9 // Rcpp is free software: you can redistribute it and/or modify it
10 // under the terms of the GNU General Public License as published by
11 // the Free Software Foundation, either version 2 of the License, or
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13 //
14 // Rcpp is distributed in the hope that it will be useful, but
15 // WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 // GNU General Public License for more details.
18 //
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20 // along with Rcpp. If not, see <http://www.gnu.org/licenses/>.
21 
22 #ifndef Rcpp__sugar__rep_len_h
23 #define Rcpp__sugar__rep_len_h
24 
25 namespace Rcpp{
26 namespace sugar{
27 
28 template <int RTYPE, bool NA, typename T>
29 class Rep_len : public Rcpp::VectorBase< RTYPE ,NA, Rep_len<RTYPE,NA,T> > {
30 public:
33 
34  Rep_len( const VEC_TYPE& object_, R_xlen_t len_ ) :
35  object(object_), len(len_), n(object_.size()){}
36 
37  inline STORAGE operator[]( R_xlen_t i ) const {
38  return object[ i % n ] ;
39  }
40  inline R_xlen_t size() const { return len ; }
41 
42 private:
43  const VEC_TYPE& object ;
44  R_xlen_t len, n ;
45 } ;
46 
47 } // sugar
48 
49 template <int RTYPE, bool NA, typename T>
51  return sugar::Rep_len<RTYPE,NA,T>( t, len ) ;
52 }
53 
54 
55 } // Rcpp
56 #endif
57 
Rcpp::traits::storage_type< RTYPE >::type STORAGE
Definition: rep_len.h:32
const VEC_TYPE & object
Definition: rep_len.h:43
Rep_len(const VEC_TYPE &object_, R_xlen_t len_)
Definition: rep_len.h:34
sugar::Rep_len< RTYPE, NA, T > rep_len(const VectorBase< RTYPE, NA, T > &t, R_xlen_t len)
Definition: rep_len.h:50
R_xlen_t size() const
Definition: rep_len.h:40
Rcpp::VectorBase< RTYPE, NA, T > VEC_TYPE
Definition: rep_len.h:31
Rcpp API.
Definition: algo.h:28
STORAGE operator[](R_xlen_t i) const
Definition: rep_len.h:37