diff options
Diffstat (limited to 'libcxx/include/memory')
| -rw-r--r-- | libcxx/include/memory | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/libcxx/include/memory b/libcxx/include/memory index e7fe78eda615..5ec8c7da4e4d 100644 --- a/libcxx/include/memory +++ b/libcxx/include/memory @@ -2498,6 +2498,24 @@ private: #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES unique_ptr(const unique_ptr&); unique_ptr& operator=(const unique_ptr&); + +template <class _P1, + bool = is_same<typename remove_cv<typename pointer_traits<_P1>::element_type>::type, + typename remove_cv<element_type>::type>::value> +struct __same_or_less_cv_qualified_imp + : is_convertible<_P1, pointer> {}; +template <class _P1> +struct __same_or_less_cv_qualified_imp<_P1, false> + : false_type {}; + +template <class _P1, bool = is_scalar<_P1>::value && !is_pointer<_P1>::value> +struct __same_or_less_cv_qualified + : __same_or_less_cv_qualified_imp<_P1> {}; + +template <class _P1> +struct __same_or_less_cv_qualified<_P1, true> + : false_type {}; + #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES unique_ptr(unique_ptr&); template <class _Up> @@ -2526,7 +2544,7 @@ public: } #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES template <class _Pp, - class = typename enable_if<is_same<_Pp, pointer>::value>::type + class = typename enable_if<__same_or_less_cv_qualified<_Pp>::value>::type > _LIBCPP_INLINE_VISIBILITY explicit unique_ptr(_Pp __p) _NOEXCEPT : __ptr_(__p) @@ -2536,7 +2554,7 @@ public: } template <class _Pp, - class = typename enable_if<is_same<_Pp, pointer>::value>::type + class = typename enable_if<__same_or_less_cv_qualified<_Pp>::value>::type > _LIBCPP_INLINE_VISIBILITY unique_ptr(_Pp __p, typename conditional< is_reference<deleter_type>::value, @@ -2553,7 +2571,7 @@ public: : __ptr_(pointer(), __d) {} template <class _Pp, - class = typename enable_if<is_same<_Pp, pointer>::value || + class = typename enable_if<__same_or_less_cv_qualified<_Pp>::value || is_same<_Pp, nullptr_t>::value>::type > _LIBCPP_INLINE_VISIBILITY unique_ptr(_Pp __p, typename remove_reference<deleter_type>::type&& __d) @@ -2637,7 +2655,7 @@ public: #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES template <class _Pp, - class = typename enable_if<is_same<_Pp, pointer>::value>::type + class = typename enable_if<__same_or_less_cv_qualified<_Pp>::value>::type > _LIBCPP_INLINE_VISIBILITY void reset(_Pp __p) _NOEXCEPT { |