43 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
		
		
			
		
	
	
			43 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
|   | /*============================================================================= | ||
|  |     Copyright (c) 2001-2011 Joel de Guzman | ||
|  |     Copyright (c) 2005-2006 Dan Marsden | ||
|  | 
 | ||
|  |     Distributed under the Boost Software License, Version 1.0. (See accompanying  | ||
|  |     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
|  | ==============================================================================*/ | ||
|  | #if !defined(BOOST_FUSION_AT_IMPL_31122005_1642) | ||
|  | #define BOOST_FUSION_AT_IMPL_31122005_1642 | ||
|  | 
 | ||
|  | #include <boost/fusion/support/config.hpp> | ||
|  | #include <boost/mpl/at.hpp> | ||
|  | 
 | ||
|  | namespace boost { namespace fusion  | ||
|  | { | ||
|  |     struct mpl_sequence_tag; | ||
|  | 
 | ||
|  |     namespace extension | ||
|  |     { | ||
|  |         template<typename Tag> | ||
|  |         struct at_impl; | ||
|  | 
 | ||
|  |         template <> | ||
|  |         struct at_impl<mpl_sequence_tag> | ||
|  |         { | ||
|  |             template <typename Sequence, typename N> | ||
|  |             struct apply | ||
|  |             { | ||
|  |                 typedef typename mpl::at<Sequence, N>::type type; | ||
|  |                  | ||
|  |                 BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | ||
|  |                 static type | ||
|  |                 call(Sequence) | ||
|  |                 { | ||
|  |                     return type(); | ||
|  |                 } | ||
|  |             }; | ||
|  |         }; | ||
|  |     } | ||
|  | }} | ||
|  | 
 | ||
|  | #endif |