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			1.7 KiB
		
	
	
	
		
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			50 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
|   | //---------------------------------------------------------------------------// | ||
|  | // Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com> | ||
|  | // | ||
|  | // 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 | ||
|  | // | ||
|  | // See http://boostorg.github.com/compute for more information. | ||
|  | //---------------------------------------------------------------------------// | ||
|  | 
 | ||
|  | #ifndef BOOST_COMPUTE_ALGORITHM_GENERATE_HPP | ||
|  | #define BOOST_COMPUTE_ALGORITHM_GENERATE_HPP | ||
|  | 
 | ||
|  | #include <boost/compute/system.hpp> | ||
|  | #include <boost/compute/command_queue.hpp> | ||
|  | #include <boost/compute/algorithm/copy.hpp> | ||
|  | #include <boost/compute/iterator/function_input_iterator.hpp> | ||
|  | #include <boost/compute/detail/iterator_range_size.hpp> | ||
|  | 
 | ||
|  | namespace boost { | ||
|  | namespace compute { | ||
|  | 
 | ||
|  | /// Stores the result of \p generator for each element in the range | ||
|  | /// [\p first, \p last). | ||
|  | template<class OutputIterator, class Generator> | ||
|  | inline void generate(OutputIterator first, | ||
|  |                      OutputIterator last, | ||
|  |                      Generator generator, | ||
|  |                      command_queue &queue = system::default_queue()) | ||
|  | { | ||
|  |     size_t count = detail::iterator_range_size(first, last); | ||
|  |     if(count == 0){ | ||
|  |         return; | ||
|  |     } | ||
|  | 
 | ||
|  |     ::boost::compute::copy( | ||
|  |         ::boost::compute::make_function_input_iterator(generator, | ||
|  |                                                        first.get_index()), | ||
|  |         ::boost::compute::make_function_input_iterator(generator, | ||
|  |                                                        last.get_index()), | ||
|  |         first, | ||
|  |         queue | ||
|  |     ); | ||
|  | } | ||
|  | 
 | ||
|  | } // end compute namespace | ||
|  | } // end boost namespace | ||
|  | 
 | ||
|  | #endif // BOOST_COMPUTE_ALGORITHM_GENERATE_HPP |