Rcpp Version 0.12.12
is_infinite.h
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1 // -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; tab-width: 8 -*-
2 //
3 // is_infinite.h: Rcpp R/C++ interface class library -- is infinite
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
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17 // GNU General Public License for more details.
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21 
22 #ifndef Rcpp__traits_is_infinite_h
23 #define Rcpp__traits_is_infinite_h
24 
25 namespace Rcpp{
26 namespace traits{
27 
28  // default for all but REALSXP and CPLXSXP
29  template <int RTYPE>
31  return false ;
32  }
33 
34  template <>
35  inline bool is_infinite<REALSXP>( double x ){
36  return !( ISNAN(x) || R_FINITE(x) ) ;
37  }
38 
39  template <>
40  inline bool is_infinite<CPLXSXP>( Rcomplex x ){
41  return is_infinite<REALSXP>(x.r) || is_infinite<REALSXP>(x.i) ;
42  }
43 
44 }
45 }
46 
47 #endif
bool is_infinite(typename storage_type< RTYPE >::type)
Definition: is_infinite.h:30
Rcpp API.
Definition: algo.h:28
bool is_infinite< REALSXP >(double x)
Definition: is_infinite.h:35
bool is_infinite< CPLXSXP >(Rcomplex x)
Definition: is_infinite.h:40