Rcpp Version 0.12.12
is_eigen_base.h
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1 // -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; tab-width: 4 -*-
2 //
3 // is_eigen_base.h: Rcpp R/C++ interface class library --
4 //
5 // Copyright (C) 2011 Doug Bates, 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
12 // (at your option) any later version.
13 //
14 // Rcpp is distributed in the hope that it will be useful, but
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 //
19 // You should have received a copy of the GNU General Public License
20 // along with Rcpp. If not, see <http://www.gnu.org/licenses/>.
21 
22 #ifndef Rcpp__traits__is_eigen_base_h
23 #define Rcpp__traits__is_eigen_base_h
24 
25 namespace Rcpp{
26 namespace traits{
27 
28  template<typename T>
30  template<typename U> struct _Wrap_type { };
31 
32  template<typename U>
34 
35  template<typename U>
36  static __two __test(...);
37 
38  public:
39  static const bool value = sizeof(__test<T>(0)) == 1;
40  };
41 
42  template<typename T> struct is_eigen_base :
43  integral_constant<bool, _is_eigen_helper<T>::value >{ };
44 
45 }
46 }
47 #endif
Rcpp API.
Definition: algo.h:28
static __one __test(_Wrap_type< typename U::StorageKind > *)