compute/algorithm/find_if.hpp

0001 //---------------------------------------------------------------------------//
0002 // Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
0003 //
0004 // Distributed under the Boost Software License, Version 1.0
0005 // See accompanying file LICENSE_1_0.txt or copy at
0006 // http://www.boost.org/LICENSE_1_0.txt
0007 //
0008 // See http://boostorg.github.com/compute for more information.
0009 //---------------------------------------------------------------------------//
0010
0011 #ifndef BOOST_COMPUTE_ALGORITHM_FIND_IF_HPP
0012 #define BOOST_COMPUTE_ALGORITHM_FIND_IF_HPP
0013
0014 #include <boost/static_assert.hpp>
0015
0016 #include <boost/compute/system.hpp>
0017 #include <boost/compute/command_queue.hpp>
0018 #include <boost/compute/algorithm/detail/find_if_with_atomics.hpp>
0019 #include <boost/compute/type_traits/is_device_iterator.hpp>
0020
0021 namespace boost {
0022 namespace compute {
0023
0024 /// Returns an iterator pointing to the first element in the range
0025 /// [\p first, \p last) for which \p predicate returns \c true.
0026 ///
0027 /// Space complexity: \Omega(1)
0028 template<class InputIterator, class UnaryPredicate>
0029 inline InputIterator find_if(InputIterator first,
0030                              InputIterator last,
0031                              UnaryPredicate predicate,
0032                              command_queue &queue = system::default_queue())
0033 {
0034     BOOST_STATIC_ASSERT(is_device_iterator<InputIterator>::value);
0035     return detail::find_if_with_atomics(first, last, predicate, queue);
0036 }
0037
0038 } // end compute namespace
0039 } // end boost namespace
0040
0041 #endif // BOOST_COMPUTE_ALGORITHM_FIND_IF_HPP