libcxx/test/std/experimental/memory/memory.resource.aliases/header_set_synop.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // UNSUPPORTED: c++03
  10
  11 // XFAIL: availability-aligned_allocation-missing
  12
  13 // <experimental/set>
  14
  15 // namespace std { namespace experimental { namespace pmr {
  16 // template <class V, class Compare = less<V> >
  17 // using set =
  18 //     ::std::set<V, Compare, polymorphic_allocator<V>>
  19 //
  20 // template <class V, class Compare = less<V> >
  21 // using multiset =
  22 //     ::std::multiset<V, Compare, polymorphic_allocator<V>>
  23 //
  24 // }}} // namespace std::experimental::pmr
  25
  26 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS
  27
  28 #include <experimental/set>
  29 #include <experimental/memory_resource>
  30 #include <type_traits>
  31 #include <cassert>
  32
  33 #include "test_macros.h"
  34
  35 namespace pmr = std::experimental::pmr;
  36
  37 int main(int, char**)
  38 {
  39     using V = char;
  40     using DC = std::less<V>;
  41     using OC = std::greater<V>;
  42     {
  43         using StdSet = std::set<V, DC, pmr::polymorphic_allocator<V>>;
  44         using PmrSet = pmr::set<V>;
  45         static_assert(std::is_same<StdSet, PmrSet>::value, "");
  46     }
  47     {
  48         using StdSet = std::set<V, OC, pmr::polymorphic_allocator<V>>;
  49         using PmrSet = pmr::set<V, OC>;
  50         static_assert(std::is_same<StdSet, PmrSet>::value, "");
  51     }
  52     {
  53         pmr::set<int> m;
  54         assert(m.get_allocator().resource() == pmr::get_default_resource());
  55     }
  56     {
  57         using StdSet = std::multiset<V, DC, pmr::polymorphic_allocator<V>>;
  58         using PmrSet = pmr::multiset<V>;
  59         static_assert(std::is_same<StdSet, PmrSet>::value, "");
  60     }
  61     {
  62         using StdSet = std::multiset<V, OC, pmr::polymorphic_allocator<V>>;
  63         using PmrSet = pmr::multiset<V, OC>;
  64         static_assert(std::is_same<StdSet, PmrSet>::value, "");
  65     }
  66     {
  67         pmr::multiset<int> m;
  68         assert(m.get_allocator().resource() == pmr::get_default_resource());
  69     }
  70
  71   return 0;
  72 }