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Vendor import of libc++ trunk r290819:
[FreeBSD/FreeBSD.git] / test / std / utilities / memory / allocator.traits / allocator.traits.members / deallocate.pass.cpp
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 <cstdint>
21 #include <cassert>
22
23 int called = 0;
24
25 template <class T>
26 struct A
27 {
28     typedef T value_type;
29
30     void deallocate(value_type* p, std::size_t n)
31     {
32         assert(p == reinterpret_cast<value_type*>(static_cast<std::uintptr_t>(0xDEADBEEF)));
33         assert(n == 10);
34         ++called;
35     }
36 };
37
38 int main()
39 {
40     A<int> a;
41     std::allocator_traits<A<int> >::deallocate(a, reinterpret_cast<int*>(static_cast<std::uintptr_t>(0xDEADBEEF)), 10);
42     assert(called == 1);
43 }