Rcpp Version 0.12.12
col.h
Go to the documentation of this file.
1 // -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; tab-width: 8 -*-
2 //
3 // col.h: Rcpp R/C++ interface class library -- col
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__col_h
23 #define Rcpp__sugar__col_h
24 
25 namespace Rcpp{
26 namespace sugar{
27 
28 template <int RTYPE, bool LHS_NA, typename LHS_T>
29 class Col : public MatrixBase<
30  INTSXP ,
31  false ,
32  Col<RTYPE,LHS_NA,LHS_T>
33 > {
34 public:
36 
37  Col( const LHS_TYPE& lhs) : nr( lhs.ncol() ), nc( lhs.ncol() ) {}
38 
39  inline int operator()( int i, int j ) const {
40  return j + 1 ;
41  }
42 
43  inline R_xlen_t size() const { return static_cast<R_xlen_t>(nr) * nc ; }
44  inline int nrow() const { return nr; }
45  inline int ncol() const { return nc; }
46 
47 private:
48  int nr, nc ;
49 } ;
50 
51 } // sugar
52 
53 template <int RTYPE, bool LHS_NA, typename LHS_T>
56  return sugar::Col<RTYPE,LHS_NA,LHS_T>( lhs ) ;
57 }
58 
59 } // Rcpp
60 
61 #endif
Col(const LHS_TYPE &lhs)
Definition: col.h:37
Rcpp::MatrixBase< RTYPE, LHS_NA, LHS_T > LHS_TYPE
Definition: col.h:35
int operator()(int i, int j) const
Definition: col.h:39
int ncol() const
Definition: col.h:45
int nrow() const
Definition: col.h:44
sugar::Col< RTYPE, LHS_NA, LHS_T > col(const Rcpp::MatrixBase< RTYPE, LHS_NA, LHS_T > &lhs)
Definition: col.h:55
Rcpp API.
Definition: algo.h:28
R_xlen_t size() const
Definition: col.h:43