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  1. #include<iostream>
  2. using namespace std;
  3.  
  4. int main(){
  5. 	//part 1
  6. 	//not able to compile
  7.     int *b1 = 0;
  8.     const int *& n1 = b1;
  9.  
  10.  
  11.     //part 2
  12.     //able to compile
  13.     int a2 = 0;
  14.     int *b2 = &a2;
  15.     const int & n2 = *b2;
  16.     cout << n2 << endl; // n = 0
  17.     *b2 = 3;
  18.     cout << n2 << endl; // n = 3
  19.  
  20.     return 0;
  21. }
Compilation error #stdin compilation error #stdout 0s 3464KB
comments (?)
stdin
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Standard input is empty
compilation info 
prog.cpp: In function 'int main()':
prog.cpp:8:23: error: invalid initialization of non-const reference of type 'const int*&' from an rvalue of type 'const int*'
     const int *& n1 = b1;
                       ^
stdout
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Standard output is empty
https://ideone.com/W5kqRr
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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