(C++) std::reverse_copy

 

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

 

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#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); }