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  1. template<class iterator1, class iterator2>
  2. bool almostEqual(iterator1 begin1, iterator1 end1, iterator2 begin2, iterator2 end2, int tolerance)
  3. {
  4.     for(;begin1!=end1; ++begin1, ++begin2) {
  5.         if (begin2 == end2)
  6.             return false;
  7.         if (*begin1 - tolerance > *begin2)
  8.             return false;
  9.         if (*begin1 + tolerance < *begin2)
  10.             return false;
  11.     }
  12.     if (begin2 != end2)
  13.         return false;
  14.     return true;
  15. }
  16.  
  17. template<class container1, class container2>
  18. bool almostEqual(container1 left, container2 right, int tolerance)
  19. { return almostEqual(left.begin(), left.end(), right.begin(), right.end(), tolerance);}
  20.  
  21. #include <vector>
  22. #include <iostream>
  23.  
  24. int main() {
  25.     std::vector<int> a = {0, 5, 10};
  26.     std::vector<int> b = {1, 4, 8};
  27.     std::vector<int> c = {2, 2, 10};
  28.  
  29.     std::cout << almostEqual(a, b, 2) << '\n';
  30.     std::cout << almostEqual(a, c, 2) << '\n';
  31.     std::cout << almostEqual(b, c, 2) << '\n';
  32. }
Success #stdin #stdout 0s 2964KB
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https://ideone.com/y6jBR
language:
C++14 (gcc 8.3)
created:
13 years ago
visibility:
public

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