find_if.hpp 1.5 KB

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  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. #ifndef BOOST_COMPUTE_ALGORITHM_FIND_IF_HPP
  11. #define BOOST_COMPUTE_ALGORITHM_FIND_IF_HPP
  12. #include <boost/static_assert.hpp>
  13. #include <boost/compute/system.hpp>
  14. #include <boost/compute/command_queue.hpp>
  15. #include <boost/compute/algorithm/detail/find_if_with_atomics.hpp>
  16. #include <boost/compute/type_traits/is_device_iterator.hpp>
  17. namespace boost {
  18. namespace compute {
  19. /// Returns an iterator pointing to the first element in the range
  20. /// [\p first, \p last) for which \p predicate returns \c true.
  21. ///
  22. /// Space complexity: \Omega(1)
  23. template<class InputIterator, class UnaryPredicate>
  24. inline InputIterator find_if(InputIterator first,
  25. InputIterator last,
  26. UnaryPredicate predicate,
  27. command_queue &queue = system::default_queue())
  28. {
  29. BOOST_STATIC_ASSERT(is_device_iterator<InputIterator>::value);
  30. return detail::find_if_with_atomics(first, last, predicate, queue);
  31. }
  32. } // end compute namespace
  33. } // end boost namespace
  34. #endif // BOOST_COMPUTE_ALGORITHM_FIND_IF_HPP