Standard C++ Library Class Reference

operator-> () const;

Returns the underlying pointer.

Member Functions

get () const;

Returns the underlying pointer.

release();

Releases ownership of the underlying pointer. Returns that pointer.

void

reset (X* p = 0);

Requires that p points to an object of class X or a class derived from X for which delete p

is defined and accessible, or p is a null pointer. Deletes the current underlying pointer,

then resets it to p.

Example

// auto_ptr.cpp

#include <iostream.h>

#include <memory>

// A simple structure.

struct X

{

X (int i = 0) : m_i(i) { }

int get() const { return m_i; }

int m_i;

};

int main ()

{

// b will hold a pointer to an X.

auto_ptr<X> b(new X(12345));

// a will now be the owner of the underlying pointer.