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  1. #include <vector>
  2. #include <iostream>
  3. #include <cassert>
  4.  
  5. template <typename T>
  6. const std::vector<T> operator+(const std::vector<T>& lhs, const std::vector<T>& rhs)
  7. {
  8.     assert(lhs.size() == rhs.size());
  9.     std::vector<T> r(lhs.size());
  10.  
  11.     for (std::size_t i = 0; i < lhs.size(); ++i)
  12.     {
  13.         r[i] = lhs[i] + rhs[i];
  14.     }
  15.  
  16.     return r;
  17. }
  18.  
  19. int main()
  20. {
  21.     std::vector<int> a;
  22.     a.push_back(1);
  23.     a.push_back(2);
  24.     a.push_back(3);
  25.  
  26.     std::vector<int> b;
  27.     b.push_back(11);
  28.     b.push_back(12);
  29.     b.push_back(13);
  30.  
  31.     std::vector<int> c = a + b;
  32.  
  33.     for (std::size_t i = 0; i < c.size(); ++i)
  34.     {
  35.         std::cout << c[i] << '\n';
  36.     }
  37. }
Success #stdin #stdout 0s 2988KB
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https://ideone.com/RlZEzr
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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