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  1. #include <iostream>
  2.  
  3. void double_it(int& val)
  4. {
  5.     val *= 2;
  6. }
  7.  
  8. void print_it(int val)
  9. {
  10.     std::cout << val << '\n';
  11. }
  12.  
  13. int main()
  14. {
  15.     int values[10] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
  16.  
  17.     for (auto value : values)
  18.         print_it(value);
  19.     std::cout << '\n';
  20.  
  21.     for (auto& value : values)
  22.         double_it(value);
  23.  
  24.     for (auto value : values)
  25.         print_it(value);
  26.     std::cout << '\n';
  27. }
Success #stdin #stdout 0s 3344KB
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Standard input is empty
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https://ideone.com/KX3ciT
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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