[util.smartptr.hash]
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@105393 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/memory b/include/memory
index 10122c7..8af5ed7 100644
--- a/include/memory
+++ b/include/memory
@@ -2463,6 +2463,31 @@
bool
operator>=(const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return !(__x < __y);}
+template <class> struct hash;
+
+template<class _Tp>
+struct hash<_Tp*>
+ : public unary_function<_Tp*, size_t>
+{
+ size_t operator()(_Tp* __v) const
+ {
+ const size_t* const __p = reinterpret_cast<const size_t*>(&__v);
+ return *__p;
+ }
+};
+
+template <class _Tp, class _Dp>
+struct hash<unique_ptr<_Tp, _Dp> >
+{
+ typedef unique_ptr<_Tp, _Dp> argument_type;
+ typedef size_t result_type;
+ result_type operator()(const argument_type& __ptr) const
+ {
+ typedef typename argument_type::pointer pointer;
+ return hash<pointer>()(__ptr.get());
+ }
+};
+
struct __destruct_n
{
private:
@@ -3785,6 +3810,17 @@
template <class _Up> friend class shared_ptr;
};
+template <class _Tp>
+struct hash<shared_ptr<_Tp> >
+{
+ typedef shared_ptr<_Tp> argument_type;
+ typedef size_t result_type;
+ result_type operator()(const argument_type& __ptr) const
+ {
+ return hash<_Tp*>()(__ptr.get());
+ }
+};
+
//enum class
struct pointer_safety
{