Rcpp Version 0.12.12
rep_each.h
Go to the documentation of this file.
1 // -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; tab-width: 8 -*-
2 //
3 // rep_each.h: Rcpp R/C++ interface class library -- rep_each
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_each_h
23 #define Rcpp__sugar__rep_each_h
24 
25 namespace Rcpp{
26 namespace sugar{
27 
28 template <int RTYPE, bool NA, typename T>
29 class Rep_each : public Rcpp::VectorBase< RTYPE ,NA, Rep_each<RTYPE,NA,T> > {
30 public:
33 
34  Rep_each( 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 / times ] ;
39  }
40  inline R_xlen_t size() const { return n * times ; }
41 
42 private:
43  const VEC_TYPE& object ;
44  R_xlen_t times, n ;
45 } ;
46 
47 } // sugar
48 
49 template <int RTYPE, bool NA, typename T>
51  return sugar::Rep_each<RTYPE,NA,T>( t, times ) ;
52 }
53 
54 
55 } // Rcpp
56 #endif
57 
Rep_each(const VEC_TYPE &object_, R_xlen_t times_)
Definition: rep_each.h:34
const VEC_TYPE & object
Definition: rep_each.h:43
Rcpp::VectorBase< RTYPE, NA, T > VEC_TYPE
Definition: rep_each.h:31
Rcpp::traits::storage_type< RTYPE >::type STORAGE
Definition: rep_each.h:32
Rcpp API.
Definition: algo.h:28
STORAGE operator[](R_xlen_t i) const
Definition: rep_each.h:37
R_xlen_t size() const
Definition: rep_each.h:40
sugar::Rep_each< RTYPE, NA, T > rep_each(const VectorBase< RTYPE, NA, T > &t, R_xlen_t times)
Definition: rep_each.h:50