Rcpp Version 0.12.12
longlong.h
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1 // -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; indent-tabs-mode: nil; -*-
2 //
3 // longlong.h: Rcpp R/C++ interface class library -- long long support
4 //
5 // Copyright (C) 2013 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_LONG_LONG_H
23 #define RCPP_LONG_LONG_H
24 
25 // 'long long' is a C99 extension and (as of fall 2013) still
26 // forbidden by CRAN which stick with the C++98 standard predating it.
27 // One way to get 'long long' is to switch to C++11, another is to use
28 // clang++ from the llvm project.
29 #ifdef __GNUC__
30 #if defined(__GXX_EXPERIMENTAL_CXX0X__) || (defined (__clang__) && defined(__LP64__))
31 
32 #if defined(__GNUC__) && defined(__LONG_LONG_MAX__)
33 __extension__ typedef long long int rcpp_long_long_type;
34 __extension__ typedef unsigned long long int rcpp_ulong_long_type;
35 #define RCPP_HAS_LONG_LONG_TYPES
36 #endif
37 
38 #endif
39 #endif
40 
41 #endif