ceph/src/boost/boost/compute/algorithm/any_of.hpp

   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_ANY_OF_HPP
  12 #define BOOST_COMPUTE_ALGORITHM_ANY_OF_HPP
  13
  14 #include <boost/static_assert.hpp>
  15
  16 #include <boost/compute/system.hpp>
  17 #include <boost/compute/algorithm/find_if.hpp>
  18 #include <boost/compute/type_traits/is_device_iterator.hpp>
  19
  20 namespace boost {
  21 namespace compute {
  22
  23 /// Returns \c true if \p predicate returns \c true for any of the elements in
  24 /// the range [\p first, \p last).
  25 ///
  26 /// For example, to test if a vector contains any negative values:
  27 ///
  28 /// \snippet test/test_any_all_none_of.cpp any_of
  29 ///
  30 /// Space complexity: \Omega(1)
  31 ///
  32 /// \see all_of(), none_of()
  33 template<class InputIterator, class UnaryPredicate>
  34 inline bool any_of(InputIterator first,
  35                    InputIterator last,
  36                    UnaryPredicate predicate,
  37                    command_queue &queue = system::default_queue())
  38 {
  39     BOOST_STATIC_ASSERT(is_device_iterator<InputIterator>::value);
  40     return ::boost::compute::find_if(first, last, predicate, queue) != last;
  41 }
  42
  43 } // end compute namespace
  44 } // end boost namespace
  45
  46 #endif // BOOST_COMPUTE_ALGORITHM_ANY_OF_HPP