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author | DongHun Kwak <dh0128.kwak@samsung.com> | 2016-10-06 10:38:45 +0900 |
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committer | DongHun Kwak <dh0128.kwak@samsung.com> | 2016-10-06 10:39:52 +0900 |
commit | 5cde13f21d36c7224b0e13d11c4b49379ae5210d (patch) | |
tree | e8269ac85a4b0f7d416e2565fa4f451b5cb41351 /boost/compute/algorithm/count.hpp | |
parent | d9ec475d945d3035377a0d89ed42e382d8988891 (diff) | |
download | boost-5cde13f21d36c7224b0e13d11c4b49379ae5210d.tar.gz boost-5cde13f21d36c7224b0e13d11c4b49379ae5210d.tar.bz2 boost-5cde13f21d36c7224b0e13d11c4b49379ae5210d.zip |
Imported Upstream version 1.61.0
Change-Id: I96a1f878d1e6164f01e9aadd5147f38fca448d90
Signed-off-by: DongHun Kwak <dh0128.kwak@samsung.com>
Diffstat (limited to 'boost/compute/algorithm/count.hpp')
-rw-r--r-- | boost/compute/algorithm/count.hpp | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/boost/compute/algorithm/count.hpp b/boost/compute/algorithm/count.hpp new file mode 100644 index 0000000000..140d67379f --- /dev/null +++ b/boost/compute/algorithm/count.hpp @@ -0,0 +1,55 @@ +//---------------------------------------------------------------------------// +// 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_COUNT_HPP +#define BOOST_COMPUTE_ALGORITHM_COUNT_HPP + +#include <boost/compute/lambda.hpp> +#include <boost/compute/system.hpp> +#include <boost/compute/command_queue.hpp> +#include <boost/compute/algorithm/count_if.hpp> +#include <boost/compute/type_traits/vector_size.hpp> + +namespace boost { +namespace compute { + +/// Returns the number of occurrences of \p value in the range +/// [\p first, \p last). +/// +/// \see count_if() +template<class InputIterator, class T> +inline size_t count(InputIterator first, + InputIterator last, + const T &value, + command_queue &queue = system::default_queue()) +{ + typedef typename std::iterator_traits<InputIterator>::value_type value_type; + + using ::boost::compute::_1; + using ::boost::compute::lambda::all; + + if(vector_size<value_type>::value == 1){ + return ::boost::compute::count_if(first, + last, + _1 == value, + queue); + } + else { + return ::boost::compute::count_if(first, + last, + all(_1 == value), + queue); + } +} + +} // end compute namespace +} // end boost namespace + +#endif // BOOST_COMPUTE_ALGORITHM_COUNT_HPP |