From 55037a694f63196eb28dc7eb0cab0857fe7ab85c Mon Sep 17 00:00:00 2001
From: Jonathan Wakely <jwakely@redhat.com>
Date: Tue, 6 Dec 2016 14:36:00 +0000
Subject: [PATCH] Fix debug mode assertion for std::shared_ptr<void>

	* include/bits/shared_ptr_base.h
	(__shared_ptr_access<T, L, false, true>::operator->()): Fix assertion.

From-SVN: r243303
---
 libstdc++-v3/ChangeLog                      | 5 +++++
 libstdc++-v3/include/bits/shared_ptr_base.h | 5 +++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index b8edb7b2412..676d32b2722 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,8 @@
+2016-12-06  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/shared_ptr_base.h
+	(__shared_ptr_access<T, L, false, true>::operator->()): Fix assertion.
+
 2016-12-06  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
 	Constrain optional's __constexpr_addressof in its return type
diff --git a/libstdc++-v3/include/bits/shared_ptr_base.h b/libstdc++-v3/include/bits/shared_ptr_base.h
index 2fb70b7a5cb..7e02043ed12 100644
--- a/libstdc++-v3/include/bits/shared_ptr_base.h
+++ b/libstdc++-v3/include/bits/shared_ptr_base.h
@@ -983,8 +983,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       element_type*
       operator->() const noexcept
       {
-	_GLIBCXX_DEBUG_PEDASSERT(_M_get() != nullptr);
-	return static_cast<const __shared_ptr<_Tp, _Lp>*>(this)->get();
+	auto __ptr = static_cast<const __shared_ptr<_Tp, _Lp>*>(this)->get();
+	_GLIBCXX_DEBUG_PEDASSERT(__ptr != nullptr);
+	return __ptr;
       }
     };
 
-- 
2.30.2