Rcpp Version 0.12.12
SugarBlock_1.h
Go to the documentation of this file.
1 // -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; indent-tabs-mode: nil; -*-
2 //
3 // SugarBlock.h: Rcpp R/C++ interface class library -- sugar functions
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_BLOCK_1_H
23 #define RCPP_SUGAR_BLOCK_1_H
24 
25 namespace Rcpp{
26 namespace sugar{
27 
28 template <bool NA, typename RESULT_TYPE, typename U1, typename T1>
29 class SugarBlock_1 : public Rcpp::VectorBase< Rcpp::traits::r_sexptype_traits<RESULT_TYPE>::rtype , NA, SugarBlock_1<NA,RESULT_TYPE,U1,T1> > {
30 public:
31  typedef RESULT_TYPE (*FunPtr)(U1) ;
32  SugarBlock_1( FunPtr ptr_, const T1 & vec_) : ptr(ptr_), vec(vec_){}
33 
34  inline RESULT_TYPE operator[]( R_xlen_t i) const {
35  return ptr( vec[i] ) ;
36  }
37  inline R_xlen_t size() const { return vec.size() ; }
38 
39 private:
41  const T1& vec ;
42 };
43 
44 } // sugar
45 } // Rcpp
46 
47 #define SB1_T VectorBase<REALSXP,NA,T>
48 
49 #define SUGAR_BLOCK_1(__NAME__,__SYMBOL__) \
50  namespace Rcpp{ \
51  template <bool NA, typename T> \
52  inline sugar::SugarBlock_1<NA,double,double,SB1_T > \
53  __NAME__( \
54  const SB1_T& t \
55  ){ \
56  return sugar::SugarBlock_1<NA,double,double,SB1_T >( \
57  __SYMBOL__ , t \
58  ) ; \
59  } \
60 }
61 
62 #endif
RESULT_TYPE operator[](R_xlen_t i) const
Definition: SugarBlock_1.h:34
RESULT_TYPE(* FunPtr)(U1)
Definition: SugarBlock_1.h:31
Rcpp API.
Definition: algo.h:28
R_xlen_t size() const
Definition: SugarBlock_1.h:37
SugarBlock_1(FunPtr ptr_, const T1 &vec_)
Definition: SugarBlock_1.h:32