| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: c++03 |
| |
| // XFAIL: availability-aligned_allocation-missing |
| |
| // <experimental/memory_resource> |
| |
| // template <class T> class polymorphic_allocator |
| |
| // memory_resource * |
| // polymorphic_allocator<T>::resource() const |
| |
| // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS |
| |
| #include <experimental/memory_resource> |
| #include <type_traits> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| |
| namespace ex = std::experimental::pmr; |
| |
| int main(int, char**) |
| { |
| typedef ex::polymorphic_allocator<void> A; |
| { |
| A const a; |
| static_assert( |
| std::is_same<decltype(a.resource()), ex::memory_resource*>::value |
| , "" |
| ); |
| } |
| { |
| ex::memory_resource * mptr = (ex::memory_resource*)42; |
| A const a(mptr); |
| assert(a.resource() == mptr); |
| } |
| { |
| A const a(nullptr); |
| assert(a.resource() == nullptr); |
| assert(a.resource() == nullptr); |
| } |
| { |
| A const a; |
| assert(a.resource() == ex::get_default_resource()); |
| } |
| { |
| ex::memory_resource * mptr = (ex::memory_resource*)42; |
| ex::set_default_resource(mptr); |
| A const a; |
| assert(a.resource() == mptr); |
| assert(a.resource() == ex::get_default_resource()); |
| } |
| |
| return 0; |
| } |