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  1. #include <iostream>
  2.  
  3. void fun1(int ** i) {
  4.  *i = new int(0);
  5. }
  6. void fun2(int *& i) {
  7.     i = new int(69);
  8. }
  9. int main()
  10. {
  11.     using namespace std;
  12.     int* a = new int(42);
  13.     cout << "init: " << *a << endl;
  14.  
  15.     fun1(&a);
  16.     cout << "fun1: " << *a << endl;
  17.  
  18.     fun2(a);
  19.     cout << "fun2: " << *a << endl;
  20.  
  21.     return 0;
  22. }
Success #stdin #stdout 0s 3460KB
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stdin
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Standard input is empty
stdout
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init: 42
fun1: 0
fun2: 69
https://ideone.com/Kjq5Vd
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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