fork(1) download
copy 
  1. #include <iostream>
  2.  
  3. void ptrFunc( const int* p )
  4. {
  5.   if ( p )
  6.   {
  7.     std::cout << "*p == " << *p << std::endl;
  8.   }
  9. }
  10.  
  11. void refFunc( const int& i )
  12. {
  13.   std::cout << "(ref)i == " << i << std::endl;
  14. }
  15.  
  16. void valueFunc( int i )
  17. {
  18.   std::cout << "i == " << i << std::endl;
  19. }
  20.  
  21. template< class T >
  22. const T* addrtemp(const T& arg) 
  23. {
  24.     return reinterpret_cast<T*>(
  25.                &const_cast<char&>(
  26.                   reinterpret_cast<const volatile char&>(arg)));
  27. }
  28.  
  29. int main()
  30. {
  31.   valueFunc( int() );
  32.   refFunc( int() );
  33.   ptrFunc( addrtemp(int()) );
  34.   return 0;
  35. }
Success #stdin #stdout 0s 15240KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
i == 0
(ref)i == 0
*p == 0
https://ideone.com/r1WwZY
language:
C++ (gcc 8.3)
created:
8 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!