ceph/src/boost/boost/compute/algorithm/equal.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_EQUAL_HPP
  12 #define BOOST_COMPUTE_ALGORITHM_EQUAL_HPP
  13
  14 #include <boost/compute/system.hpp>
  15 #include <boost/compute/command_queue.hpp>
  16 #include <boost/compute/algorithm/mismatch.hpp>
  17
  18 namespace boost {
  19 namespace compute {
  20
  21 /// Returns \c true if the range [\p first1, \p last1) and the range
  22 /// beginning at \p first2 are equal.
  23 ///
  24 /// Space complexity: \Omega(1)
  25 template<class InputIterator1, class InputIterator2>
  26 inline bool equal(InputIterator1 first1,
  27                   InputIterator1 last1,
  28                   InputIterator2 first2,
  29                   command_queue &queue = system::default_queue())
  30 {
  31     return ::boost::compute::mismatch(first1,
  32                                       last1,
  33                                       first2,
  34                                       queue).first == last1;
  35 }
  36
  37 /// \overload
  38 template<class InputIterator1, class InputIterator2>
  39 inline bool equal(InputIterator1 first1,
  40                   InputIterator1 last1,
  41                   InputIterator2 first2,
  42                   InputIterator2 last2,
  43                   command_queue &queue = system::default_queue())
  44 {
  45     if(std::distance(first1, last1) != std::distance(first2, last2)){
  46         return false;
  47     }
  48
  49     return ::boost::compute::equal(first1, last1, first2, queue);
  50 }
  51
  52 } // end compute namespace
  53 } // end boost namespace
  54
  55 #endif // BOOST_COMPUTE_ALGORITHM_EQUAL_HPP