Rcpp Version 1.0.9
row.h
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1 // -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; tab-width: 8 -*-
2 //
3 // row.h: Rcpp R/C++ interface class library -- row
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 //
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20 // along with Rcpp. If not, see <http://www.gnu.org/licenses/>.
21 
22 #ifndef Rcpp__sugar__row_h
23 #define Rcpp__sugar__row_h
24 
25 namespace Rcpp{
26 namespace sugar{
27 
28 template <int RTYPE, bool LHS_NA, typename LHS_T>
29 class Row : public MatrixBase<
30  INTSXP ,
31  false ,
32  Row<RTYPE,LHS_NA,LHS_T>
33 > {
34 public:
36 
37  Row( const LHS_TYPE& lhs) : nr( lhs.nrow() ), nc( lhs.ncol() ) {}
38 
39  inline int operator()( int i, int j ) const {
40  return i + 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::Row<RTYPE,LHS_NA,LHS_T>( lhs ) ;
57 }
58 
59 } // Rcpp
60 
61 #endif
R_xlen_t size() const
Definition: row.h:43
int operator()(int i, int j) const
Definition: row.h:39
Rcpp::MatrixBase< RTYPE, LHS_NA, LHS_T > LHS_TYPE
Definition: row.h:35
Row(const LHS_TYPE &lhs)
Definition: row.h:37
int nrow() const
Definition: row.h:44
int ncol() const
Definition: row.h:45
Rcpp API.
Definition: algo.h:28
sugar::Row< RTYPE, LHS_NA, LHS_T > row(const Rcpp::MatrixBase< RTYPE, LHS_NA, LHS_T > &lhs)
Definition: row.h:55