[PATCH] D70754: [libcxx] Add support for std::reinterpret_pointer_cast

[mupp via Phabricator via llvm-commits]

MU001999 created this revision.
MU001999 added a reviewer: libc++.
MU001999 added a project: libc++.
Herald added a reviewer: EricWF.
Herald added subscribers: llvm-commits, ldionne.
Herald added a reviewer: mclow.lists.
Herald added a project: LLVM.

Add the implementation of std::reinterpret_pointer_cast <https://en.cppreference.com/w/cpp/memory/shared_ptr/pointer_cast>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D70754

Files:
  include/memory


Index: include/memory
===================================================================
--- include/memory
+++ include/memory
@@ -4629,6 +4629,12 @@
     return shared_ptr<_Tp>(__r, const_cast<_RTp*>(__r.get()));
 }
 
+template<class _Tp, class _Up>
+shared_ptr<_Tp> reinterpret_pointer_cast(const shared_ptr<_UP>& __r) _NOEXCEPT
+{
+    return shared_ptr<_Tp>(__r, reinterpret_cast<_Tp*>(__r.get()));
+}
+
 #ifndef _LIBCPP_NO_RTTI
 
 template<class _Dp, class _Tp>


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