| Jeff Thompson | f7d4994 | 2013-08-01 16:47:40 -0700 | [diff] [blame^] | 1 | |
| 2 | #ifndef BOOST_MPL_AUX_YES_NO_HPP_INCLUDED |
| 3 | #define BOOST_MPL_AUX_YES_NO_HPP_INCLUDED |
| 4 | |
| 5 | // Copyright Aleksey Gurtovoy 2000-2004 |
| 6 | // |
| 7 | // Distributed under the Boost Software License, Version 1.0. |
| 8 | // (See accompanying file LICENSE_1_0.txt or copy at |
| 9 | // http://www.boost.org/LICENSE_1_0.txt) |
| 10 | // |
| 11 | // See http://www.boost.org/libs/mpl for documentation. |
| 12 | |
| 13 | // $Id: yes_no.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ |
| 14 | // $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $ |
| 15 | // $Revision: 49267 $ |
| 16 | |
| 17 | #include <boost/mpl/aux_/nttp_decl.hpp> |
| 18 | #include <boost/mpl/aux_/config/arrays.hpp> |
| 19 | #include <boost/mpl/aux_/config/msvc.hpp> |
| 20 | #include <boost/mpl/aux_/config/workaround.hpp> |
| 21 | |
| 22 | |
| 23 | namespace ndnboost { namespace mpl { namespace aux { |
| 24 | |
| 25 | typedef char (&no_tag)[1]; |
| 26 | typedef char (&yes_tag)[2]; |
| 27 | |
| 28 | template< bool C_ > struct yes_no_tag |
| 29 | { |
| 30 | typedef no_tag type; |
| 31 | }; |
| 32 | |
| 33 | template<> struct yes_no_tag<true> |
| 34 | { |
| 35 | typedef yes_tag type; |
| 36 | }; |
| 37 | |
| 38 | |
| 39 | template< BOOST_MPL_AUX_NTTP_DECL(long, n) > struct weighted_tag |
| 40 | { |
| 41 | #if !BOOST_WORKAROUND(BOOST_MSVC, < 1300) |
| 42 | typedef char (&type)[n]; |
| 43 | #else |
| 44 | char buf[n]; |
| 45 | typedef weighted_tag type; |
| 46 | #endif |
| 47 | }; |
| 48 | |
| 49 | #if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES) |
| 50 | template<> struct weighted_tag<0> |
| 51 | { |
| 52 | typedef char (&type)[1]; |
| 53 | }; |
| 54 | #endif |
| 55 | |
| 56 | }}} |
| 57 | |
| 58 | #endif // BOOST_MPL_AUX_YES_NO_HPP_INCLUDED |