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Release pointer
Sets the auto_ptr internal pointer to null pointer (which indicates it points to no object) without destructing the object currently pointed by the auto_ptr.
To force a destruction of the object pointed, use member function reset() instead.
The function returns a pointer to the object it pointed before the call, which is no longer its responsibility to destruct.
Parameters
none
Return value
A pointer to the element pointed by the auto_ptr object before the call. After the call, the internal pointer's value is the null pointer (points to no object).
X is auto_ptr's template parameter (i.e., the type pointed).
Example
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// auto_ptr::release example
#include <iostream>
#include <memory>
using namespace std;
int main () {
auto_ptr<int> auto_pointer (new int);
int * manual_pointer;
*auto_pointer=10;
manual_pointer = auto_pointer.release();
cout << "manual_pointer points to " << *manual_pointer << "\n";
// (auto_pointer is now null-pointer auto_ptr)
delete manual_pointer;
return 0;
}
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Output:
manual_pointer points to 10
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See also
| auto_ptr::reset | Deallocate object pointed and set new value (public member function) |
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