auto_ptr::operator auto_ptr_ref<Other>

Casts from an auto_ptr to an auto_ptr_ref.

template<class Other>
   operator auto_ptr_ref<Other>( ) throw( );

Return Value

The type cast operator returns auto_ptr_ref<Other>(*this).

Example

// auto_ptr_op_auto_ptr_ref.cpp
// compile with: /EHsc
#include <memory>
#include <iostream>
#include <vector>

using namespace std;

class C{
   public:
   C(int _i) : m_i(_i){
   }
   ~C(){
      cout << "~C:  "<< m_i <<"\n";
   }
   C &operator =(const int &x){
      m_i = x;
      return *this;
   }
   int m_i;
};
void f(auto_ptr<C> arg ){
};
int main()
{
   const auto_ptr<C> ciap ( new C(1) );
   auto_ptr<C> iap ( new C(2) );

   // Error: this implies transfer of ownership of iap's pointer
   // f(ciap); 
   f(iap); // compiles, but gives up ownership of pointer

   // here, iap owns a destroyed pointer so the following is bad:
   // *iap = 5; // BOOM

   cout << "main exiting\n";
}

~C:  2
main exiting
~C:  1

Requirements

Header: <memory>

Namespace: std

See Also

Concepts

auto_ptr Class

auto_ptr Members