allocator::pointer
A type that provides a pointer to the type of object managed by the allocator.
typedef value_type *pointer;
Remarks
The pointer type describes an object ptr that can designate, through the expression *ptr, any object that an object of template class allocator can allocate.
Example
// allocator_ptr.cpp
// compile with: /EHsc
#include <memory>
#include <iostream>
#include <vector>
using namespace std;
int main( )
{
vector <int> v1;
vector <int>::iterator v1Iter;
vector <int>:: allocator_type v1Alloc;
int i;
for ( i = 1 ; i <= 7 ; i++ )
{
v1.push_back( 3 * i );
}
cout << "The original vector v1 is:\n ( " ;
for ( v1Iter = v1.begin( ) ; v1Iter != v1.end( ) ; v1Iter++ )
cout << *v1Iter << " ";
cout << ")." << endl;
allocator<int>::const_pointer v1Ptr;
const int k = 12;
v1Ptr = v1Alloc.address( k );
cout << "The integer addressed by v1Ptr has a value of: "
<< "*v1Ptr = " << *v1Ptr << "." << endl;
}
The original vector v1 is: ( 3 6 9 12 15 18 21 ). The integer addressed by v1Ptr has a value of: *v1Ptr = 12.
Requirements
Header: <memory>
Namespace: std