ceph/src/boost/libs/algorithm/example/apply_permutation_example.cpp

   1 /*
   2   Copyright (c) Alexander Zaitsev <zamazan4ik@gmail.com>, 2017
   3
   4   Distributed under the Boost Software License, Version 1.0. (See
   5   accompanying file LICENSE_1_0.txt or copy at
   6   http://www.boost.org/LICENSE_1_0.txt)
   7
   8   See http://www.boost.org/ for latest version.
   9 */
  10
  11 #include <vector>
  12 #include <iostream>
  13
  14 #include <boost/algorithm/apply_permutation.hpp>
  15
  16
  17 namespace ba = boost::algorithm;
  18
  19 int main ( int /*argc*/, char * /*argv*/ [] )
  20 {
  21     // WARNING: Example require C++11 or newer compiler
  22     {
  23         std::cout << "apply_permutation with iterators:\n";
  24         std::vector<int> vec{1, 2, 3, 4, 5}, order{4, 2, 3, 1, 0};
  25
  26         ba::apply_permutation(vec.begin(), vec.end(), order.begin(), order.end());
  27         for (const auto& x : vec)
  28         {
  29             std::cout << x << ", ";
  30         }
  31         std::cout << std::endl;
  32     }
  33     {
  34         std::cout << "apply_reverse_permutation with iterators:\n";
  35         std::vector<int> vec{1, 2, 3, 4, 5}, order{4, 2, 3, 1, 0};
  36
  37         ba::apply_reverse_permutation(vec.begin(), vec.end(), order.begin(), order.end());
  38         for (const auto& x : vec)
  39         {
  40             std::cout << x << ", ";
  41         }
  42         std::cout << std::endl;
  43     }
  44     {
  45         std::cout << "apply_reverse_permutation with ranges:\n";
  46         std::vector<int> vec{1, 2, 3, 4, 5}, order{4, 2, 3, 1, 0};
  47
  48         ba::apply_reverse_permutation(vec, order);
  49         for (const auto& x : vec)
  50         {
  51             std::cout << x << ", ";
  52         }
  53         std::cout << std::endl;
  54     }
  55     {
  56         std::cout << "apply_permutation with ranges:\n";
  57         std::vector<int> vec{1, 2, 3, 4, 5}, order{4, 2, 3, 1, 0};
  58
  59         ba::apply_permutation(vec, order);
  60         for (const auto& x : vec)
  61         {
  62             std::cout << x << ", ";
  63         }
  64         std::cout << std::endl;
  65     }
  66
  67     return 0;
  68 }
  69