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  1. #include <iostream>
  2. #include <stdexcept>
  3.  
  4. using namespace std;
  5.  
  6. int i;
  7.  
  8. class A{
  9.     public:
  10.     ~A(){i=10;}
  11.     };
  12.  
  13. int& func1()
  14. {
  15.     i=3;
  16.     A Ob; // -> here local object , hence created and destroyed
  17.     return i;
  18.     }
  19.  
  20. int& func2()
  21. {
  22.     i=8;
  23.     A obj;
  24.     return i;
  25.     }
  26.  
  27. int func3()
  28. {
  29.     i=8;
  30.     {A  obj;}
  31.     return i;
  32.     }
  33.  
  34.  
  35.  
  36.  
  37.  
  38. int main()
  39. {
  40.  
  41. cout << "i : " <<func1() << endl;
  42. cout << "i : " <<func2() << endl;
  43. cout << "i : " <<func3() << endl;
  44. return(0);
  45. }
Success #stdin #stdout 0s 2852KB
comments (?)
stdin
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Standard input is empty
stdout
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i : 10
i : 10
i : 10
https://ideone.com/XXYu2u
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
secret

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