52 lines
1.8 KiB
Plaintext
52 lines
1.8 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_COPY_N_HPP
|
|
#define BOOST_COMPUTE_ALGORITHM_COPY_N_HPP
|
|
|
|
#include <boost/compute/system.hpp>
|
|
#include <boost/compute/command_queue.hpp>
|
|
#include <boost/compute/algorithm/copy.hpp>
|
|
|
|
namespace boost {
|
|
namespace compute {
|
|
|
|
/// Copies \p count elements from \p first to \p result.
|
|
///
|
|
/// For example, to copy four values from the host to the device:
|
|
/// \code
|
|
/// // values on the host and vector on the device
|
|
/// float values[4] = { 1.f, 2.f, 3.f, 4.f };
|
|
/// boost::compute::vector<float> vec(4, context);
|
|
///
|
|
/// // copy from the host to the device
|
|
/// boost::compute::copy_n(values, 4, vec.begin(), queue);
|
|
/// \endcode
|
|
///
|
|
/// \see copy()
|
|
template<class InputIterator, class Size, class OutputIterator>
|
|
inline OutputIterator copy_n(InputIterator first,
|
|
Size count,
|
|
OutputIterator result,
|
|
command_queue &queue = system::default_queue())
|
|
{
|
|
typedef typename std::iterator_traits<InputIterator>::difference_type difference_type;
|
|
|
|
return ::boost::compute::copy(first,
|
|
first + static_cast<difference_type>(count),
|
|
result,
|
|
queue);
|
|
}
|
|
|
|
} // end compute namespace
|
|
} // end boost namespace
|
|
|
|
#endif // BOOST_COMPUTE_ALGORITHM_COPY_N_HPP
|