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1 // Copyright (C) 2018-2020 Free Software Foundation, Inc.
3 // This file is part of the GNU ISO C++ Library. This library is free
4 // software; you can redistribute it and/or modify it under the
5 // terms of the GNU General Public License as published by the
6 // Free Software Foundation; either version 3, or (at your option)
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License along
15 // with this library; see the file COPYING3. If not see
16 // <http://www.gnu.org/licenses/>.
18 // { dg-options "-std=gnu++17" }
19 // { dg-do compile { target c++17 } }
21 #include <unordered_map>
22 #include <memory_resource>
26 struct Hash
{ std::size_t operator()(X
) const { return 0; } };
27 struct Eq
{ bool operator()(X
, X
) const { return true; } };
29 static_assert(std::is_same_v
<std::pmr::unordered_map
<X
, Y
>,
30 std::unordered_map
<X
, Y
, std::hash
<X
>, std::equal_to
<X
>,
31 std::pmr::polymorphic_allocator
<std::pair
<const X
, Y
>>>>);
32 static_assert(std::is_same_v
<std::pmr::unordered_map
<X
, Y
, Hash
>,
33 std::unordered_map
<X
, Y
, Hash
, std::equal_to
<X
>,
34 std::pmr::polymorphic_allocator
<std::pair
<const X
, Y
>>>>);
35 static_assert(std::is_same_v
<std::pmr::unordered_map
<X
, Y
, Hash
, Eq
>,
36 std::unordered_map
<X
, Y
, Hash
, Eq
,
37 std::pmr::polymorphic_allocator
<std::pair
<const X
, Y
>>>>);