variant (_Variant_storage::_M_storage()): Use std::addressof instead of operator& to take address.

2016-09-05  Mikhail Strelnikov  <mikhail.strelnikov@gmail.com>

	* include/std/variant (_Variant_storage::_M_storage()): Use std::addressof
	instead of operator& to take address.

From-SVN: r239996

libstdc++-v3/ChangeLog

+2016-09-05  Mikhail Strelnikov  <mikhail.strelnikov@gmail.com>
+
+	* include/std/variant (_Variant_storage::_M_storage()): Use std::addressof
+	instead of operator& to take address.
+
 2016-09-02  Maxim Kuvyrkov  <maxim.kuvyrkov@linaro.org>
 
 	* acinclude.m4 (GLIBCXX_CONFIGURE_TESTSUITE): Check for presence of

libstdc++-v3/include/std/variant

@@ -312,7 +312,7 @@ namespace __variant
       _M_storage() const
       {
 	return const_cast<void*>(
-	  static_cast<const void*>(&_M_first._M_storage));
+	  static_cast<const void*>(std::addressof(_M_first._M_storage)));
       }
 
       union