Rcpp Version 0.12.14
rep.h
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1 // -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; tab-width: 8 -*-
2 //
3 // rep.h: Rcpp R/C++ interface class library -- rep
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
12 // (at your option) any later version.
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 //
19 // You should have received a copy of the GNU General Public License
20 // along with Rcpp. If not, see <http://www.gnu.org/licenses/>.
21 
22 #ifndef Rcpp__sugar__rep_h
23 #define Rcpp__sugar__rep_h
24 
25 namespace Rcpp{
26 namespace sugar{
27 
28 template <int RTYPE, bool NA, typename T>
29 class Rep : public Rcpp::VectorBase< RTYPE ,NA, Rep<RTYPE,NA,T> > {
30 public:
33 
34  Rep( const VEC_TYPE& object_, R_xlen_t times_ ) :
35  object(object_), times(times_), 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 times * n ; }
41 
42 private:
43  const VEC_TYPE& object ;
44  R_xlen_t times, n ;
45 } ;
46 
47 template <typename T>
49  Rcpp::traits::r_sexptype_traits<T>::rtype,
50  true,
51  Rep_Single<T>
52 > {
53 public:
54  Rep_Single( const T& x_, R_xlen_t n_) : x(x_), n(n_){}
55 
56  inline T operator[]( R_xlen_t ) const {
57  return x;
58  }
59  inline R_xlen_t size() const { return n ; }
60 
61 private:
62  const T& x ;
63  R_xlen_t n;
64 } ;
65 
66 } // sugar
67 
68 template <int RTYPE, bool NA, typename T>
69 inline sugar::Rep<RTYPE,NA,T> rep( const VectorBase<RTYPE,NA,T>& t, R_xlen_t n ){
70  return sugar::Rep<RTYPE,NA,T>( t, n ) ;
71 }
72 
73 inline sugar::Rep_Single<double> rep( const double& x, R_xlen_t n ){
74  return sugar::Rep_Single<double>( x, n ) ;
75 }
76 inline sugar::Rep_Single<int> rep( const int& x, R_xlen_t n ){
77  return sugar::Rep_Single<int>( x, n ) ;
78 }
79 inline sugar::Rep_Single<Rbyte> rep( const Rbyte& x, R_xlen_t n ){
80  return sugar::Rep_Single<Rbyte>( x, n ) ;
81 }
82 inline sugar::Rep_Single<Rcomplex> rep( const Rcomplex& x, R_xlen_t n ){
83  return sugar::Rep_Single<Rcomplex>( x, n ) ;
84 }
85 inline sugar::Rep_Single<bool> rep( const bool& x, R_xlen_t n ){
86  return sugar::Rep_Single<bool>( x, n ) ;
87 }
88 
89 } // Rcpp
90 #endif
91 
Rep(const VEC_TYPE &object_, R_xlen_t times_)
Definition: rep.h:34
R_xlen_t times
Definition: rep.h:44
Rcpp::traits::storage_type< RTYPE >::type STORAGE
Definition: rep.h:32
Rcpp::VectorBase< RTYPE, NA, T > VEC_TYPE
Definition: rep.h:31
Rep_Single(const T &x_, R_xlen_t n_)
Definition: rep.h:54
const T & x
Definition: rep.h:62
const VEC_TYPE & object
Definition: rep.h:43
R_xlen_t size() const
Definition: rep.h:40
sugar::Rep< RTYPE, NA, T > rep(const VectorBase< RTYPE, NA, T > &t, R_xlen_t n)
Definition: rep.h:69
T operator[](R_xlen_t) const
Definition: rep.h:56
STORAGE operator[](R_xlen_t i) const
Definition: rep.h:37
Rcpp API.
Definition: algo.h:28
R_xlen_t size() const
Definition: rep.h:59
R_xlen_t n
Definition: rep.h:44