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
|
// NAEquals.h: Rcpp R/C++ interface class library -- for allowing NA == NA
//
// Copyright (C) 2014 Kevin Ushey
//
// 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__internal__NAEquals__h
#define Rcpp__internal__NAEquals__h
namespace Rcpp {
namespace internal {
template <typename T>
struct NAEquals {
inline bool operator()(T left, T right) const {
return left == right;
}
};
// TODO: check different kinds of NA, NaNs
template <>
struct NAEquals<double> {
inline bool operator()(double left, double right) const {
return memcmp(&left, &right, sizeof(double)) == 0;
}
};
}
}
#endif
|
