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      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 
     29     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 
     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