FM / detail

/usr/include/boost/compute/algorithm/detail/

/usr/include/boost/compute/algorithm/detail

Name	Size	Mode	Actions
balanced_path.hpp	6267	0644	edit dl rm
binary_find.hpp	4626	0644	edit dl rm
compact.hpp	2188	0644	edit dl rm
copy_on_device.hpp	7382	0644	edit dl rm
copy_to_device.hpp	6731	0644	edit dl rm
copy_to_host.hpp	6658	0644	edit dl rm
count_if_with_ballot.hpp	2605	0644	edit dl rm
count_if_with_reduce.hpp	2648	0644	edit dl rm
count_if_with_threads.hpp	4241	0644	edit dl rm
find_extrema.hpp	2441	0644	edit dl rm
find_extrema_on_cpu.hpp	5333	0644	edit dl rm
find_extrema_with_atomics.hpp	4251	0644	edit dl rm
find_extrema_with_reduce.hpp	18672	0644	edit dl rm
find_if_with_atomics.hpp	8509	0644	edit dl rm
inplace_reduce.hpp	4839	0644	edit dl rm
insertion_sort.hpp	6030	0644	edit dl rm
merge_path.hpp	3874	0644	edit dl rm
merge_sort_on_cpu.hpp	14654	0644	edit dl rm
merge_sort_on_gpu.hpp	22093	0644	edit dl rm
merge_with_merge_path.hpp	7339	0644	edit dl rm
radix_sort.hpp	15502	0644	edit dl rm
random_fill.hpp	1880	0644	edit dl rm
reduce_by_key.hpp	5243	0644	edit dl rm
reduce_by_key_with_scan.hpp	23735	0644	edit dl rm
reduce_on_cpu.hpp	3949	0644	edit dl rm
reduce_on_gpu.hpp	10391	0644	edit dl rm
scan.hpp	1545	0644	edit dl rm
scan_on_cpu.hpp	7056	0644	edit dl rm
scan_on_gpu.hpp	11320	0644	edit dl rm
search_all.hpp	2579	0644	edit dl rm
serial_accumulate.hpp	1990	0644	edit dl rm
serial_count_if.hpp	2243	0644	edit dl rm
serial_find_extrema.hpp	3151	0644	edit dl rm
serial_merge.hpp	3504	0644	edit dl rm
serial_reduce.hpp	2145	0644	edit dl rm
serial_reduce_by_key.hpp	4240	0644	edit dl rm
serial_scan.hpp	3184	0644	edit dl rm

Edit: /usr/include/boost/compute/algorithm/detail/serial_count_if.hpp (2243B)

//---------------------------------------------------------------------------//
// 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_DETAIL_SERIAL_COUNT_IF_HPP
#define BOOST_COMPUTE_ALGORITHM_DETAIL_SERIAL_COUNT_IF_HPP

#include <iterator>

#include <boost/compute/container/detail/scalar.hpp>
#include <boost/compute/detail/meta_kernel.hpp>
#include <boost/compute/detail/iterator_range_size.hpp>

namespace boost {
namespace compute {
namespace detail {

// counts values that match the predicate using a single thread
template<class InputIterator, class Predicate>
inline size_t serial_count_if(InputIterator first,
                              InputIterator last,
                              Predicate predicate,
                              command_queue &queue)
{
    typedef typename std::iterator_traits<InputIterator>::value_type value_type;

const context &context = queue.get_context();
    size_t size = iterator_range_size(first, last);

meta_kernel k("serial_count_if");
    k.add_set_arg("size", static_cast<uint_>(size));
    size_t result_arg = k.add_arg<uint_ *>(memory_object::global_memory, "result");

k <<
        "uint count = 0;\n" <<
        "for(uint i = 0; i < size; i++){\n" <<
            k.decl<const value_type>("value") << "="
                << first[k.var<uint_>("i")] << ";\n" <<
            "if(" << predicate(k.var<const value_type>("value")) << "){\n" <<
                "count++;\n" <<
            "}\n"
        "}\n"
        "*result = count;\n";

kernel kernel = k.compile(context);

// setup result buffer
    scalar<uint_> result(context);
    kernel.set_arg(result_arg, result.get_buffer());

// run kernel
    queue.enqueue_task(kernel);

// read index
    return result.read(queue);
}

} // end detail namespace
} // end compute namespace
} // end boost namespace

#endif // BOOST_COMPUTE_ALGORITHM_DETAIL_SERIAL_COUNT_IF_HPP

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