CXXR (C++ R)
IntVector.h
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1 /*CXXR $Id: IntVector.h 1351 2013-03-08 15:12:28Z arr $
2  *CXXR
3  *CXXR This file is part of CXXR, a project to refactor the R interpreter
4  *CXXR into C++. It may consist in whole or in part of program code and
5  *CXXR documentation taken from the R project itself, incorporated into
6  *CXXR CXXR (and possibly MODIFIED) under the terms of the GNU General Public
7  *CXXR Licence.
8  *CXXR
9  *CXXR CXXR is Copyright (C) 2008-13 Andrew R. Runnalls, subject to such other
10  *CXXR copyrights and copyright restrictions as may be stated below.
11  *CXXR
12  *CXXR CXXR is not part of the R project, and bugs and other issues should
13  *CXXR not be reported via r-bugs or other R project channels; instead refer
14  *CXXR to the CXXR website.
15  *CXXR */
16 
17 /*
18  * R : A Computer Language for Statistical Data Analysis
19  * Copyright (C) 1995, 1996 Robert Gentleman and Ross Ihaka
20  * Copyright (C) 1999-2006 The R Development Core Team.
21  * Andrew Runnalls (C) 2008
22  *
23  * This program is free software; you can redistribute it and/or modify
24  * it under the terms of the GNU General Public License as published by
25  * the Free Software Foundation; either version 2.1 of the License, or
26  * (at your option) any later version.
27  *
28  * This program is distributed in the hope that it will be useful,
29  * but WITHOUT ANY WARRANTY; without even the implied warranty of
30  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
31  * GNU Lesser General Public License for more details.
32  *
33  * You should have received a copy of the GNU General Public License
34  * along with this program; if not, a copy is available at
35  * http://www.r-project.org/Licenses/
36  */
37 
42 #ifndef INTVECTOR_H
43 #define INTVECTOR_H
44 
45 #include "CXXR/VectorBase.h"
46 
47 #ifdef __cplusplus
48 
49 #include "R_ext/Arith.h"
50 #include "CXXR/FixedVector.hpp"
51 #include "CXXR/SEXP_downcast.hpp"
52 
53 #ifndef USE_TYPE_CHECKING_STRICT
54 #include "CXXR/LogicalVector.h"
55 #endif
56 
57 namespace CXXR {
58  // Template specializations:
59  namespace ElementTraits {
60  template <>
61  struct NAFunc<int> {
62  const int& operator()() const
63  {
64  static int na = NA_INTEGER;
65  return na;
66  }
67  };
68  }
69 
70  template <>
72  {
73  return "integer";
74  }
75 
79 } // namespace CXXR
80 
81 BOOST_CLASS_EXPORT_KEY(CXXR::IntVector)
82 
83 extern "C" {
84 #endif /* __cplusplus */
85 
94 #ifndef __cplusplus
95 int *INTEGER(SEXP x);
96 #else
97 inline int* INTEGER(SEXP x)
98 {
99  using namespace CXXR;
100 #ifndef USE_TYPE_CHECKING_STRICT
101  // Quicker than dynamic_cast:
102  if (x && x->sexptype() == LGLSXP) {
103  LogicalVector* lvec = static_cast<LogicalVector*>(x);
104  return &(*lvec)[0];
105  }
106 #endif
107  return &(*SEXP_downcast<IntVector*>(x, false))[0];
108 }
109 #endif
110 
111 #ifdef __cplusplus
112 }
113 #endif
114 
115 #endif /* INTVECTOR_H */