test/std/utilities/allocator.adaptor/allocator.adaptor.members/outer_allocator.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 // UNSUPPORTED: c++98, c++03
  11
  12 // <memory>
  13
  14 // template <class OuterAlloc, class... InnerAllocs>
  15 //   class scoped_allocator_adaptor
  16
  17 // outer_allocator_type& outer_allocator();
  18 // const outer_allocator_type& outer_allocator() const;
  19
  20 #include <scoped_allocator>
  21 #include <cassert>
  22
  23 #include "allocators.h"
  24
  25 int main()
  26 {
  27
  28     {
  29         typedef std::scoped_allocator_adaptor<A1<int>> A;
  30         A a(A1<int>(5));
  31         assert(a.outer_allocator() == A1<int>(5));
  32     }
  33     {
  34         typedef std::scoped_allocator_adaptor<A1<int>, A2<int>> A;
  35         A a(A1<int>(5), A2<int>(6));
  36         assert(a.outer_allocator() == A1<int>(5));
  37     }
  38     {
  39         typedef std::scoped_allocator_adaptor<A1<int>, A2<int>, A3<int>> A;
  40         A a(A1<int>(5), A2<int>(6), A3<int>(8));
  41         assert(a.outer_allocator() == A1<int>(5));
  42     }
  43 }