(C++) std::unique_copy

 

std::unique_copy is an STL algorithm similar to std::copy except that it copies identical adjacent values once.

 

• Download the Qt Creator project 'CppUnique_copy' (zip)

 

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#include <cassert> #include <algorithm> #include <vector> int main() {   std::vector<int> v;   v.push_back(0);   v.push_back(1);   v.push_back(1);   v.push_back(2);   v.push_back(2);   v.push_back(2);   v.push_back(3);   v.push_back(3);   v.push_back(3);   v.push_back(3);   std::vector<int> w;   std::unique_copy(v.begin(),v.end(),std::back_inserter(w));   assert(w[0]==0);   assert(w[1]==1);   assert(w[2]==2);   assert(w[3]==3); }