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  1. #include <iostream>
  2. #include <vector>
  3.  
  4. using namespace std;
  5.  
  6. template <typename T>
  7. void chk_for_else(T& items) {
  8.     if (!items.empty()) for (auto i: items) {
  9.         cout << i << endl;
  10.     } else {
  11.         cout << "else" << endl;
  12.     }
  13. }
  14.  
  15. int main()
  16. {
  17.     vector<int> items;
  18.     chk_for_else(items);
  19.     items.assign({1, 2, 3});
  20.     chk_for_else(items);
  21.     return 0;
  22. }
  23.  
Success #stdin #stdout 0s 3428KB
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stdin
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Standard input is empty
stdout
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else
1
2
3
https://ideone.com/92eAOb
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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