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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. float foo2(float& i)
  5. {
  6.     cout << "call from reference" << endl;
  7.     return i;
  8. }
  9. float foo2(float i)
  10. {
  11.     cout << "call from non reference"<<endl;
  12.     return i;
  13. }
  14.  
  15. typedef float (*fptr)(float&);
  16.  
  17. int main()
  18. {
  19.     cout<<foo2(2) << endl; // print "call from non reference"
  20.     fptr foo2ptr(foo2);
  21.     float n = 10;
  22.     cout<<foo2ptr(n) << endl;
  23. }
Success #stdin #stdout 0s 3140KB
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stdin
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Standard input is empty
stdout
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call from non reference
2
call from reference
10
https://ideone.com/9VyOLL
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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