1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // <memory>
11 
12 // template <class Alloc>
13 // struct allocator_traits
14 // {
15 //     static void deallocate(allocator_type& a, pointer p, size_type n);
16 //     ...
17 // };
18 
19 #include <memory>
20 #include <cassert>
21 
22 int called = 0;
23 
24 template <class T>
25 struct A
26 {
27     typedef T value_type;
28 
deallocateA29     void deallocate(value_type* p, std::size_t n)
30     {
31         assert(p == (value_type*)0xDEADBEEF);
32         assert(n == 10);
33         ++called;
34     }
35 };
36 
main()37 int main()
38 {
39     A<int> a;
40     std::allocator_traits<A<int> >::deallocate(a, (int*)0xDEADBEEF, 10);
41     assert(called == 1);
42 }
43