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
|
// -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; indent-tabs-mode: nil; -*-
//
// InternalFunction_with_std_function.h: Rcpp R/C++ interface class library -- exposing C++ std::function's
//
// Copyright (C) 2014 Christian Authmann
// Copyright (C) 2015 Romain Francois and Dirk Eddelbuettel
//
// 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_InternalFunctionWithStdFunction_h
#define Rcpp_InternalFunctionWithStdFunction_h
#if defined(HAS_VARIADIC_TEMPLATES)
#include <Rcpp/internal/call.h>
#endif
#include <functional>
namespace Rcpp {
namespace InternalFunctionWithStdFunction {
#if !defined(HAS_VARIADIC_TEMPLATES) && !defined(RCPP_USING_CXX11)
#include <Rcpp/generated/InternalFunctionWithStdFunction_call.h>
#endif
template <typename RESULT_TYPE, typename... Args>
class CppFunctionBaseFromStdFunction : public CppFunctionBase {
public:
CppFunctionBaseFromStdFunction(const std::function<RESULT_TYPE(Args...)> &fun) : fun(fun) {}
virtual ~CppFunctionBaseFromStdFunction() {}
SEXP operator()(SEXP* args) {
BEGIN_RCPP
return call<decltype(fun), RESULT_TYPE, Args...>(fun, args);
END_RCPP
}
private:
const std::function<RESULT_TYPE(Args...)> fun;
};
} // namespace InternalFunctionWithStdFunction
} // namespace Rcpp
#endif
|
