Rcpp Version 0.12.12
is_finite.h
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1 // -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; indent-tabs-mode: nil; -*-
2 //
3 // is_finite.h: Rcpp R/C++ interface class library -- is finite
4 //
5 // Copyright (C) 2013 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
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13 //
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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__traits_is_finite_h
23 #define Rcpp__traits_is_finite_h
24 
25 namespace Rcpp{
26 
27  namespace traits{
28 
29  // default for complex,
30  template <int RTYPE>
31  bool is_finite( typename storage_type<RTYPE>::type);
32 
33  template <>
34  inline bool is_finite<INTSXP>(int x){
35  return x != NA_INTEGER;
36  }
37 
38  template <>
39  inline bool is_finite<REALSXP>(double x) {
40  return R_finite(x);
41  }
42 
43  template <>
44  inline bool is_finite<CPLXSXP>(Rcomplex x) {
45  return !( !R_finite(x.r) || !R_finite(x.i) );
46  }
47 
48  template <>
49  inline bool is_finite<STRSXP>(SEXP) {
50  return false; // see rcpp-devel on 2013-10-02; was: x != NA_STRING;
51  }
52 
53  template <>
54  inline bool is_finite<LGLSXP>(int x) {
55  return x != NA_LOGICAL;
56  }
57 
58 }
59 }
60 
61 #endif
bool is_finite< CPLXSXP >(Rcomplex x)
Definition: is_finite.h:44
bool is_finite< LGLSXP >(int x)
Definition: is_finite.h:54
bool is_finite(typename storage_type< RTYPE >::type)
bool is_finite< STRSXP >(SEXP)
Definition: is_finite.h:49
bool is_finite< REALSXP >(double x)
Definition: is_finite.h:39
Rcpp API.
Definition: algo.h:28
bool is_finite< INTSXP >(int x)
Definition: is_finite.h:34