diff options
Diffstat (limited to 'libstdc++-v3/testsuite/experimental/memory_resource')
3 files changed, 300 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/experimental/memory_resource/1.cc b/libstdc++-v3/testsuite/experimental/memory_resource/1.cc new file mode 100644 index 00000000000..38cbd2762f2 --- /dev/null +++ b/libstdc++-v3/testsuite/experimental/memory_resource/1.cc @@ -0,0 +1,161 @@ +// { dg-options "-std=gnu++14" } + +// Copyright (C) 2015-2016 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + +#include <experimental/memory_resource> +#include <vector> +#include <cstdlib> +#include <testsuite_hooks.h> +#include <testsuite_allocator.h> + +using std::experimental::pmr::polymorphic_allocator; +using std::experimental::pmr::memory_resource; +using std::experimental::pmr::new_delete_resource; +using std::experimental::pmr::get_default_resource; +using std::experimental::pmr::set_default_resource; + +struct A +{ + A() { ++ctor_count; } + ~A() { ++dtor_count; } + static int ctor_count; + static int dtor_count; +}; + +int A::ctor_count = 0; +int A::dtor_count = 0; + +struct CountedResource : public memory_resource +{ +public: + CountedResource() = default; + ~CountedResource() = default; + + static size_t get_alloc_count() { return alloc_count; } + static size_t get_dalloc_count() { return dalloc_count; } + + static size_t alloc_count; + static size_t dalloc_count; +protected: + void* do_allocate(size_t bytes, size_t alignment) + { + alloc_count += bytes; + if (auto ptr = std::malloc(bytes)) + return ptr; + throw std::bad_alloc(); + } + + void do_deallocate(void *p, size_t bytes, size_t alignment) + { + dalloc_count += bytes; + std::free(p); + } + + bool do_is_equal(const memory_resource& __other) const noexcept + { return this == &__other; } +}; + +size_t CountedResource::alloc_count = 0; +size_t CountedResource::dalloc_count = 0; + +void clear() +{ + CountedResource::alloc_count = 0; + CountedResource::dalloc_count = 0; + A::ctor_count = 0; + A::dtor_count = 0; +} + +// memory resource +void +test01() +{ + bool test __attribute((unused)) = false; + + memory_resource* r = new_delete_resource(); + VERIFY(get_default_resource() == r); + void *p = get_default_resource()->allocate(5); + VERIFY(p); + get_default_resource()->deallocate(p, 5); + + clear(); + CountedResource* cr = new CountedResource(); + set_default_resource(cr); + VERIFY(get_default_resource() == cr); + void *pc = get_default_resource()->allocate(5); + VERIFY(pc); + get_default_resource()->deallocate(pc, 5); + VERIFY(CountedResource::get_alloc_count() == 5); + VERIFY(CountedResource::get_dalloc_count() == 5); +} + +// polymorphic_allocator +void +test02() +{ + bool test __attribute((unused)) = false; + + clear(); + { + CountedResource cr; + polymorphic_allocator<A> pa(&cr); + std::vector<A, polymorphic_allocator<A>> v(5, A(), pa); + } + VERIFY(A::ctor_count == 1); + VERIFY(A::dtor_count == 6); + VERIFY(CountedResource::get_alloc_count() == 5); + VERIFY(CountedResource::get_dalloc_count() == 5); +} + +void +test03() +{ + bool test __attribute((unused)) = false; + + clear(); + CountedResource cr; + polymorphic_allocator<A> pa(&cr); + A* p = pa.allocate(1); + pa.construct(p); + pa.destroy(p); + pa.deallocate(p, 1); + VERIFY(A::ctor_count == 1); + VERIFY(A::dtor_count == 1); + VERIFY(CountedResource::get_alloc_count() == 1); + VERIFY(CountedResource::get_dalloc_count() == 1); +} + +void +test04() +{ + bool test __attribute((unused)) = false; + + polymorphic_allocator<A> pa1(get_default_resource()); + polymorphic_allocator<A> pa2(get_default_resource()); + VERIFY(pa1 == pa2); + polymorphic_allocator<A> pa3 = pa2.select_on_container_copy_construction(); + VERIFY(pa1 == pa3); +} + +int main() +{ + test01(); + test02(); + test03(); + test04(); +} diff --git a/libstdc++-v3/testsuite/experimental/memory_resource/null_memory_resource.cc b/libstdc++-v3/testsuite/experimental/memory_resource/null_memory_resource.cc new file mode 100644 index 00000000000..c84436a2eba --- /dev/null +++ b/libstdc++-v3/testsuite/experimental/memory_resource/null_memory_resource.cc @@ -0,0 +1,52 @@ +// { dg-options "-std=gnu++14" } + +// Copyright (C) 2016 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + +#include <experimental/memory_resource> +#include <testsuite_hooks.h> + +using std::experimental::pmr::memory_resource; +using std::experimental::pmr::null_memory_resource; +using std::experimental::pmr::new_delete_resource; + +// null_memory_resource +void +test06() +{ + bool test __attribute((unused)) = false; + + memory_resource* r = null_memory_resource(); + bool caught = false; + + void* p = nullptr; + try { + p = r->allocate(1); + } catch (const std::bad_alloc&) { + caught = true; + } + VERIFY( caught ); + + VERIFY( *r == *r ); + VERIFY( r->is_equal(*r) ); + VERIFY( !r->is_equal(*new_delete_resource()) ); +} + +int main() +{ + test06(); +} diff --git a/libstdc++-v3/testsuite/experimental/memory_resource/resource_adaptor.cc b/libstdc++-v3/testsuite/experimental/memory_resource/resource_adaptor.cc new file mode 100644 index 00000000000..299bb72ea4b --- /dev/null +++ b/libstdc++-v3/testsuite/experimental/memory_resource/resource_adaptor.cc @@ -0,0 +1,87 @@ +// { dg-options "-std=gnu++14" } + +// Copyright (C) 2016 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + +#include <experimental/memory_resource> +#include <testsuite_hooks.h> +#include <testsuite_allocator.h> + +using std::experimental::pmr::memory_resource; +using std::experimental::pmr::resource_adaptor; + +template<typename T> + struct Allocator : __gnu_test::SimpleAllocator<T> + { + Allocator(int) { } // not default constructible + + template<typename U> + Allocator(const Allocator<U>&) { } + }; + +template<typename T> + bool aligned(void* p) + { + return (reinterpret_cast<std::uintptr_t>(p) % alignof(T)) == 0; + } + +// resource_adaptor +void +test05() +{ + bool test __attribute((unused)) = false; + using std::max_align_t; + using std::uintptr_t; + void* p = nullptr; + + Allocator<int> a1(1), a2(2); // minimal interface allocators + resource_adaptor<decltype(a1)> r1(a1), r2(a2); + VERIFY( r1 == r1 ); + VERIFY( r1 == r2 ); + p = r1.allocate(1); + VERIFY( aligned<max_align_t>(p) ); + r1.deallocate(p, 1); + p = r1.allocate(1, alignof(short)); + VERIFY( aligned<short>(p) ); + r1.deallocate(p, 1, alignof(short)); + p = r1.allocate(1, alignof(long)); + VERIFY( aligned<long>(p) ); + r1.deallocate(p, 1, alignof(long)); + + __gnu_test::uneq_allocator<double> a3(3), a4(4); // non-equal allocators + resource_adaptor<decltype(a3)> r3(a3), r4(a4); + VERIFY( r3 == r3 ); + VERIFY( r4 == r4 ); + VERIFY( r3 != r4 ); + p = r3.allocate(1); + VERIFY( aligned<max_align_t>(p) ); + r3.deallocate(p, 1); + p = r3.allocate(1, alignof(short)); + VERIFY( aligned<short>(p) ); + r3.deallocate(p, 1, alignof(short)); + p = r3.allocate(1, alignof(long)); + VERIFY( aligned<long>(p) ); + r3.deallocate(p, 1, alignof(long)); + + // TODO test with an allocator that doesn't use new or malloc, so + // returns pointers that are not suitably aligned for any type. +} + +int main() +{ + test05(); +} |