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Differential D47360 Diff 219818 test/std/utilities/utility/mem.res/mem.res.aliases/header_unordered_set_synop.pass.cpp

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test/std/utilities/utility/mem.res/mem.res.aliases/header_unordered_set_synop.pass.cpp

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03
// <unordered_set>
// namespace std::pmr {
// template <class V, class H = hash<V>, class P = equal_to<V> >
// using unordered_set =
// ::std::unordered_set<V, H, P, polymorphic_allocator<V>>
//
// template <class V, class H = hash<V>, class P = equal_to<V> >
// using unordered_multiset =
// ::std::unordered_multiset<V, H, P, polymorphic_allocator<V>>
//
// } // namespace std::pmr
#include <unordered_set>
#include <memory_resource>
#include <type_traits>
#include <cassert>
template <class T>
struct MyHash : std::hash<T> {};
template <class T>
struct MyPred : std::equal_to<T> {};
int main(int, char**)
{
using V = char;
using DH = std::hash<V>;
using MH = MyHash<V>;
using DP = std::equal_to<V>;
using MP = MyPred<V>;
{
using StdSet = std::unordered_set<V, DH, DP, std::pmr::polymorphic_allocator<V>>;
using PmrSet = std::pmr::unordered_set<V>;
static_assert(std::is_same<StdSet, PmrSet>::value, "");
}
{
using StdSet = std::unordered_set<V, MH, DP, std::pmr::polymorphic_allocator<V>>;
using PmrSet = std::pmr::unordered_set<V, MH>;
static_assert(std::is_same<StdSet, PmrSet>::value, "");
}
{
using StdSet = std::unordered_set<V, MH, MP, std::pmr::polymorphic_allocator<V>>;
using PmrSet = std::pmr::unordered_set<V, MH, MP>;
static_assert(std::is_same<StdSet, PmrSet>::value, "");
}
{
std::pmr::unordered_set<int> m;
assert(m.get_allocator().resource() == std::pmr::get_default_resource());
}
{
using StdSet = std::unordered_multiset<V, DH, DP, std::pmr::polymorphic_allocator<V>>;
using PmrSet = std::pmr::unordered_multiset<V>;
static_assert(std::is_same<StdSet, PmrSet>::value, "");
}
{
using StdSet = std::unordered_multiset<V, MH, DP, std::pmr::polymorphic_allocator<V>>;
using PmrSet = std::pmr::unordered_multiset<V, MH>;
static_assert(std::is_same<StdSet, PmrSet>::value, "");
}
{
using StdSet = std::unordered_multiset<V, MH, MP, std::pmr::polymorphic_allocator<V>>;
using PmrSet = std::pmr::unordered_multiset<V, MH, MP>;
static_assert(std::is_same<StdSet, PmrSet>::value, "");
}
{
std::pmr::unordered_multiset<int> m;
assert(m.get_allocator().resource() == std::pmr::get_default_resource());
}
return 0;
}