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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main()
  5. {
  6.     int a = 10;
  7.  
  8.     /*
  9.     double &x = (double)a; // ERROR!
  10.     cout << x << endl;
  11. 	*/
  12.  
  13.     const double &x2 = (double)a; // OK!
  14.     cout << x2 << endl;
  15.  
  16.     return 0;
  17. }
Success #stdin #stdout 0s 4748KB
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stdin
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Standard input is empty
stdout
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10
https://ideone.com/0FpGMc
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
public

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