allocator::const_pointer

提供常數物件指標的型別是由這個配置器處理了該例外狀況。

typedef const value_type *const_pointer;

備註

指標型別描述可透過運算式 *ptr指定，，所有常數物件樣板類別配置器物件可處置的物件 ptr 。

範例

// allocator_const_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( i * 2 );
   }

   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 = 10;
   v1Ptr = v1Alloc.address( k );

   cout << "The integer's address found has a value of: "
        << *v1Ptr << "." << endl;
}

需求

標題: <memory>

命名空間: std

請參閱

參考

allocator Class