1 //---------------------------------------------------------------------------//
2 // Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
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
8 // See http://boostorg.github.com/compute for more information.
9 //---------------------------------------------------------------------------//
11 #ifndef BOOST_COMPUTE_ALGORITHM_LOWER_BOUND_HPP
12 #define BOOST_COMPUTE_ALGORITHM_LOWER_BOUND_HPP
14 #include <boost/compute/lambda.hpp>
15 #include <boost/compute/system.hpp>
16 #include <boost/compute/command_queue.hpp>
17 #include <boost/compute/algorithm/detail/binary_find.hpp>
22 /// Returns an iterator pointing to the first element in the sorted
23 /// range [\p first, \p last) that is not less than \p value.
25 /// \see upper_bound()
26 template<class InputIterator, class T>
28 lower_bound(InputIterator first,
31 command_queue &queue = system::default_queue())
33 using ::boost::compute::_1;
35 InputIterator position =
36 detail::binary_find(first, last, _1 >= value, queue);
41 } // end compute namespace
42 } // end boost namespace
44 #endif // BOOST_COMPUTE_ALGORITHM_LOWER_BOUND_HPP