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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 // UNSUPPORTED: c++98, c++03
     11 
     12 // <experimental/memory_resource>
     13 
     14 // template <class T> class polymorphic_allocator
     15 
     16 // T* polymorphic_allocator<T>::deallocate(T*, size_t size)
     17 
     18 int AssertCount = 0;
     19 
     20 #define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : (void)::AssertCount++)
     21 #define _LIBCPP_DEBUG 0
     22 #include <experimental/memory_resource>
     23 #include <type_traits>
     24 #include <cassert>
     25 
     26 #include "test_memory_resource.hpp"
     27 
     28 namespace ex = std::experimental::pmr;
     29 
     30 int main()
     31 {
     32     using Alloc = NullAllocator<char>;
     33     using R = ex::resource_adaptor<Alloc>;
     34     AllocController P;
     35     ex::resource_adaptor<Alloc> r(Alloc{P});
     36     ex::memory_resource & m1 = r;
     37 
     38     std::size_t maxSize = std::numeric_limits<std::size_t>::max()
     39                             - alignof(std::max_align_t);
     40 
     41     m1.deallocate(nullptr, maxSize);
     42     assert(AssertCount == 0);
     43     m1.deallocate(nullptr, maxSize + 1);
     44     assert(AssertCount >= 1);
     45 }
     46