auto_ptr::release
The member replaces the stored pointer myptr with a null pointer and returns the previously stored pointer.
Type *release( ) throw( );
Return Value
The previously stored pointer.
Remarks
The member replaces the stored pointer myptr with a null pointer and returns the previously stored pointer.
Example
// auto_ptr_release.cpp
// compile with: /EHsc
#include <memory>
#include <iostream>
#include <vector>
using namespace std;
class Int
{
public:
Int( int i )
{
x = i;
cout << "Constructing " << ( void* )this << " Value: " << x << endl;
};
~Int( ) {
cout << "Destructing " << ( void* )this << " Value: " << x << endl;
};
int x;
};
int main( )
{
auto_ptr<Int> pi ( new Int( 5 ) );
pi.reset( new Int( 6 ) );
Int* pi2 = pi.get ( );
Int* pi3 = pi.release ( );
if ( pi2 == pi3 )
cout << "pi2 == pi3" << endl;
delete pi3;
}
Constructing 00311AF8 Value: 5 Constructing 00311B88 Value: 6 Destructing 00311AF8 Value: 5 pi2 == pi3 Destructing 00311B88 Value: 6
Requirements
Header: <memory>
Namespace: std