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Properly down-cast a sentinal node pointer through void* 

llvm-svn: 260526
This commit is contained in:
Eric Fiselier 2016-02-11 15:22:37 +00:00
parent f478678549
commit 8e39768c21
1 changed files with 2 additions and 1 deletions
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3
libcxx/include/__hash_table
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@ -917,6 +917,7 @@ public:
typedef typename _NodeTypes::__node_type __node;
typedef typename __rebind_alloc_helper<__alloc_traits, __node>::type __node_allocator;
typedef allocator_traits<__node_allocator> __node_traits;
typedef typename _NodeTypes::__void_pointer __void_pointer;
typedef typename _NodeTypes::__node_pointer __node_pointer;
typedef typename _NodeTypes::__node_pointer __node_const_pointer;
typedef typename _NodeTypes::__node_base_type __first_node;
@ -1955,7 +1956,7 @@ __hash_table<_Tp, _Hash, _Equal, _Alloc>::__emplace_unique_key_args(_Key const&
__node_pointer __pn = __bucket_list_[__chash];
if (__pn == nullptr)
{
__pn = static_cast<__node_pointer>(pointer_traits<__node_base_pointer>::pointer_to(__p1_.first()));
__pn = static_cast<__node_pointer>(static_cast<__void_pointer>(pointer_traits<__node_base_pointer>::pointer_to(__p1_.first())));
__h->__next_ = __pn->__next_;
__pn->__next_ = __h.get();
// fix up __bucket_list_