1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
// -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; tab-width: 8 -*-
//
// is_infinite.h: Rcpp R/C++ interface class library -- is infinite
//
// Copyright (C) 2013 Dirk Eddelbuettel and Romain Francois
//
// This file is part of Rcpp.
//
// Rcpp is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 2 of the License, or
// (at your option) any later version.
//
// Rcpp is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Rcpp. If not, see <http://www.gnu.org/licenses/>.
#ifndef Rcpp__traits_is_infinite_h
#define Rcpp__traits_is_infinite_h
namespace Rcpp{
namespace traits{
// default for all but REALSXP and CPLXSXP
template <int RTYPE>
bool is_infinite( typename storage_type<RTYPE>::type){
return false ;
}
template <>
inline bool is_infinite<REALSXP>( double x ){
return !( ISNAN(x) || R_FINITE(x) ) ;
}
template <>
inline bool is_infinite<CPLXSXP>( Rcomplex x ){
return is_infinite<REALSXP>(x.r) || is_infinite<REALSXP>(x.i) ;
}
}
}
#endif
|
