std::reverse_copy is an STL algorithm to copy a container in the reverse order.


#include <algorithm>

#include <cassert>

#include <vector>



int main()

{

  std::vector<int> v;

  v.push_back(0);

  v.push_back(1);

  v.push_back(2);



  //Reverse-copy v in w

  std::vector<int> w;

  std::reverse_copy(v.begin(),v.end(),std::back_inserter(w));



  //Assume the algorithm works as expected

  assert(w.size() == 3);

  assert(w[0] == 2);

  assert(w[1] == 1);

  assert(w[2] == 0);

}

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(C++) std::reverse_copy