shared_ptr::operator=
Replaces the owned resource.
shared_ptr& operator=(const shared_ptr& sp);
template<class Other>
shared_ptr& operator=(const shared_ptr<Other>& sp);
template<class Other>
shared_ptr& operator=(auto_ptr<Other>& ap);
Parameters
sp
The shared pointer to copy.ap
The auto pointer to copy.
Remarks
The operators all decrement the reference count for the resource currently owned by *this and assign ownership of the resource named by the operand sequence to *this. If the reference count falls to zero, the resource is released. If an operator fails it leaves *this unchanged.
Example
// std_tr1__memory__shared_ptr_operator_as.cpp
// compile with: /EHsc
#include <memory>
#include <iostream>
int main()
{
std::tr1::shared_ptr<int> sp0;
std::tr1::shared_ptr<int> sp1(new int(5));
std::auto_ptr<int> ap(new int(10));
sp0 = sp1;
std::cout << "*sp0 == " << *sp0 << std::endl;
sp0 = ap;
std::cout << "*sp0 == " << *sp0 << std::endl;
return (0);
}
*sp0 == 5 *sp0 == 10
Requirements
Header: <memory>
Namespace: std::tr1