Rcpp Version 0.12.12
result_of.h
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1 // -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; tab-width: 8 -*-
2 /* :tabSize=4:indentSize=4:noTabs=false:folding=explicit:collapseFolds=1: */
3 //
4 // result_of.h: Rcpp R/C++ interface class library -- traits to help wrap
5 //
6 // Copyright (C) 2010 - 2012 Dirk Eddelbuettel and Romain Francois
7 //
8 // This file is part of Rcpp.
9 //
10 // Rcpp is free software: you can redistribute it and/or modify it
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18 // GNU General Public License for more details.
19 //
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21 // along with Rcpp. If not, see <http://www.gnu.org/licenses/>.
22 
23 #ifndef Rcpp__traits__result_of__h
24 #define Rcpp__traits__result_of__h
25 
26 namespace Rcpp{
27 namespace traits{
28 
29 template <typename T>
30 struct result_of{
31  typedef typename T::result_type type ;
32 } ;
33 
34 template <typename RESULT_TYPE, typename INPUT_TYPE>
35 struct result_of< RESULT_TYPE (*)(INPUT_TYPE) >{
36  typedef RESULT_TYPE type ;
37 } ;
38 
39 template <typename RESULT_TYPE, typename U1, typename U2>
40 struct result_of< RESULT_TYPE (*)(U1, U2) >{
41  typedef RESULT_TYPE type ;
42 } ;
43 
44 template <typename RESULT_TYPE, typename U1, typename U2, typename U3>
45 struct result_of< RESULT_TYPE (*)(U1, U2, U3) >{
46  typedef RESULT_TYPE type ;
47 } ;
48 
49 }
50 }
51 
52 #endif
53 
Rcpp API.
Definition: algo.h:28
T::result_type type
Definition: result_of.h:31