1 //---------------------------------------------------------------------------//
2 // Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
3 //
4 // Distributed under the Boost Software License, Version 1.0
5 // See accompanying file LICENSE_1_0.txt or copy at
6 // http://www.boost.org/LICENSE_1_0.txt
7 //
8 // See http://boostorg.github.com/compute for more information.
9 //---------------------------------------------------------------------------//
10
11 #ifndef BOOST_COMPUTE_ALGORITHM_FIND_IF_HPP
12 #define BOOST_COMPUTE_ALGORITHM_FIND_IF_HPP
13
14 #include <boost/static_assert.hpp>
15
16 #include <boost/compute/system.hpp>
17 #include <boost/compute/command_queue.hpp>
18 #include <boost/compute/algorithm/detail/find_if_with_atomics.hpp>
19 #include <boost/compute/type_traits/is_device_iterator.hpp>
20
21 namespace boost {
22 namespace compute {
23
24 /// Returns an iterator pointing to the first element in the range
25 /// [\p first, \p last) for which \p predicate returns \c true.
26 ///
27 /// Space complexity: \Omega(1)
28 template<class InputIterator, class UnaryPredicate>
find_if(InputIterator first,InputIterator last,UnaryPredicate predicate,command_queue & queue=system::default_queue ())29 inline InputIterator find_if(InputIterator first,
30 InputIterator last,
31 UnaryPredicate predicate,
32 command_queue &queue = system::default_queue())
33 {
34 BOOST_STATIC_ASSERT(is_device_iterator<InputIterator>::value);
35 return detail::find_if_with_atomics(first, last, predicate, queue);
36 }
37
38 } // end compute namespace
39 } // end boost namespace
40
41 #endif // BOOST_COMPUTE_ALGORITHM_FIND_IF_HPP
42