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
48
49
50
51
52
53
54
55
56
57
58
59
|
// -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; indent-tabs-mode: nil; -*-
//
// is.h: Rcpp R/C++ interface class library -- test if an R Object can be seen
// as one type
//
// 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__is__h
#define Rcpp__is__h
namespace Rcpp{
namespace internal{
// simple implementation, for most default types
template <typename T> bool is__simple( SEXP x) ;
// implementation for module objects
template <typename T> bool is__module__object( SEXP x) ;
// not a module object
template <typename T>
inline bool is__dispatch( SEXP x, Rcpp::traits::false_type ){
return is__simple<T>( x ) ;
}
template <typename T>
inline bool is__dispatch( SEXP x, Rcpp::traits::true_type ){
return is__module__object<T>( x ) ;
}
}
/** identify if an x can be seen as the T type
*
* example:
* bool is_list = is<List>( x ) ;
*/
template <typename T> bool is( SEXP x ){
return internal::is__dispatch<T>( x, typename traits::is_module_object<T>::type() ) ;
}
} // Rcpp
#endif
|
