fork download
copy 
  1. #include <iostream>
  2. using namespace std;
  3.  
  4. namespace detail{
  5.  
  6. 	bool less(int a,int b) { return a<b; }
  7.  
  8. }//namespace detail
  9.  
  10. void function2 ( bool (*compare)(int,int) = detail::less )
  11. {
  12. 	if(compare(1,2))
  13. 	    cout << "1 < 2\n";
  14. 	else
  15. 		cout << "1 >= 2\n";
  16.  
  17. }
  18.  
  19.  
  20. int main() {
  21. 	function2();
  22. 	return 0;
  23. }
Success #stdin #stdout 0s 3096KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
1 < 2
https://ideone.com/9Z5fxM
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!