c 2b 2b vector allocator example

1// vector::get_allocator
2#include <iostream>
3#include <vector>
4
5int main ()
6{
7  std::vector<int> myvector;
8  int * p;
9  unsigned int i;
10
11  // allocate an array with space for 5 elements using vector's allocator:
12  p = myvector.get_allocator().allocate(5);
13
14  // construct values in-place on the array:
15  for (i=0; i<5; i++) myvector.get_allocator().construct(&p[i],i);
16
17  std::cout << "The allocated array contains:";
18  for (i=0; i<5; i++) std::cout << ' ' << p[i];
19  std::cout << '\n';
20
21  // destroy and deallocate:
22  for (i=0; i<5; i++) myvector.get_allocator().destroy(&p[i]);
23  myvector.get_allocator().deallocate(p,5);
24
25  return 0;
26}

1The allocated array contains: 0 1 2 3 4
2