fork(1) download
copy 
  1. #include <memory>
  2. #include <iostream>
  3.  
  4.  
  5. template< typename T, typename D>
  6. class ptrptr_type {
  7.     using parent_type  = std::unique_ptr<T, D>;
  8.     using pointer      = typename parent_type::pointer;
  9.  
  10.     parent_type* p;
  11.     pointer a;
  12.     ptrptr_type(const ptrptr_type& nocopy) = delete;
  13.     ptrptr_type& operator=(const ptrptr_type& nocopy) = delete;
  14. public:
  15.     ptrptr_type (std::unique_ptr<T, D>& ptr) : p(&ptr), a(ptr.release()) {}
  16.     ptrptr_type(ptrptr_type&& mover) {p = mover.p; a = mover.a; mover.p = nullptr;}
  17.     ptrptr_type& operator=(ptrptr_type&& mover) {p = mover.p; a = mover.a; mover.p = nullptr; return *this;}
  18.     operator pointer*() {return &a;}           
  19.     ~ptrptr_type () {if (p) p->reset(a);}
  20. };
  21. template< typename T, typename D>
  22. ptrptr_type<T,D> ptrptr(std::unique_ptr<T, D>& ptr) {return ptrptr_type<T, D>(ptr);}
  23.  
  24. void FuckingCOM ( int** cominitializegogo ) {delete *cominitializegogo; *cominitializegogo = new int(48);}
  25.  
  26. int main () {    
  27.     std::unique_ptr<int> meow( new int(24) );    
  28.     FuckingCOM ( ptrptr(meow) );    
  29.     std::cout << *meow << std::endl;
  30. }
Success #stdin #stdout 0s 3428KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
48
https://ideone.com/8Arlhz
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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!