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Implement p0337r0. Delete operator= for polymorphic_allocator. 

llvm-svn: 273838
This commit is contained in:
Eric Fiselier 2016-06-27 00:55:25 +00:00
parent 9372d8bc61
commit 8b7faa6871
3 changed files with 14 additions and 14 deletions
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2
libcxx/include/experimental/memory_resource
View File

@ -176,7 +176,7 @@ public:
{}
polymorphic_allocator &
operator=(polymorphic_allocator const &) = default;
operator=(polymorphic_allocator const &) = delete;
// 8.6.3, memory.polymorphic.allocator.mem
_LIBCPP_INLINE_VISIBILITY

4
libcxx/test/std/experimental/memory/memory.polymorphic.allocator.class/memory.polymorphic.allocator.ctor/assign.pass.cpp
View File

@ -24,6 +24,6 @@ namespace ex = std::experimental::pmr;
int main()
{
typedef ex::polymorphic_allocator<void> T;
static_assert(std::is_copy_assignable<T>::value, "");
static_assert(std::is_move_assignable<T>::value, "");
static_assert(!std::is_copy_assignable<T>::value, "");
static_assert(!std::is_move_assignable<T>::value, "");
}

22
libcxx/test/support/uses_alloc_types.hpp
View File

@ -160,26 +160,26 @@ protected:
allocator(a)
{}
template <class ...Args>
template <class ...Args, class ArgsIDL = detail::TakeNArgs<sizeof...(Args) - 1, Args&&...>>
UsesAllocatorTestBase(AllocLastTag, Args&&... args)
: args_id(nullptr),
constructor_called(UA_AllocLast)
: args_id(&makeTypeID<typename ArgsIDL::type>()),
constructor_called(UA_AllocLast),
allocator(getAllocatorFromPack(
typename ArgsIDL::type{},
std::forward<Args>(args)...))
{
typedef typename detail::TakeNArgs<sizeof...(Args) - 1, Args&&...>::type
ArgIDL;
args_id = &makeTypeID<ArgIDL>();
getAllocatorFromPack(ArgIDL{}, std::forward<Args>(args)...);
}
private:
template <class ...LArgs, class ...Args>
void getAllocatorFromPack(ArgumentListID<LArgs...>, Args&&... args) {
getAllocatorFromPackImp<LArgs const&...>(args...);
static CtorAlloc const& getAllocatorFromPack(ArgumentListID<LArgs...>, Args&&... args) {
return getAllocatorFromPackImp<LArgs const&...>(args...);
}
template <class ...LArgs>
void getAllocatorFromPackImp(typename detail::Identity<LArgs>::type..., CtorAlloc const& alloc) {
allocator = alloc;
static CtorAlloc const& getAllocatorFromPackImp(
typename detail::Identity<LArgs>::type..., CtorAlloc const& alloc) {
return alloc;
}
const TypeID* args_id;