(C++) std::mismatch

 

std::mismatch is an STL algorithm to find a mismatch between two containers.

 

---

#include <algorithm> #include <cassert> #include <vector> int main() {   std::vector<int> v;   v.push_back(0);   v.push_back(1);   v.push_back(2);   v.push_back(3);   std::vector<int> w(v);   assert(v==w);   assert(std::mismatch(v.begin(),v.end(),w.begin())     == std::make_pair(v.end(),w.end()));   w[1] = 42;   assert(std::mismatch(v.begin(),v.end(),w.begin())     == std::make_pair(v.begin()+1,w.begin()+1)); }