ceph/src/boost/libs/compute/include/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 template<class InputIterator1, class InputIterator2>
  24 inline bool equal(InputIterator1 first1,
  25                   InputIterator1 last1,
  26                   InputIterator2 first2,
  27                   command_queue &queue = system::default_queue())
  28 {
  29     return ::boost::compute::mismatch(first1,
  30                                       last1,
  31                                       first2,
  32                                       queue).first == last1;
  33 }
  34
  35 /// \overload
  36 template<class InputIterator1, class InputIterator2>
  37 inline bool equal(InputIterator1 first1,
  38                   InputIterator1 last1,
  39                   InputIterator2 first2,
  40                   InputIterator2 last2,
  41                   command_queue &queue = system::default_queue())
  42 {
  43     if(std::distance(first1, last1) != std::distance(first2, last2)){
  44         return false;
  45     }
  46
  47     return ::boost::compute::equal(first1, last1, first2, queue);
  48 }
  49
  50 } // end compute namespace
  51 } // end boost namespace
  52
  53 #endif // BOOST_COMPUTE_ALGORITHM_EQUAL_HPP