From cd8f85afee1792f2051164a6ca3b98c0a06632f3 Mon Sep 17 00:00:00 2001
From: Niels Dekker <nielsdekker@xs4all.nl>
Date: Tue, 16 Oct 2007 17:00:28 +0000
Subject: [PATCH] Disabled MSVC warning C4345, in response to Gennadiy
 Rozental, Boost Developer mailing list, "[utility] value_init warning",
 October 14, 2007.  Push'n'pop reminder from Paul A Bristow taken into
 account.

[SVN r40088]
---
 include/boost/utility/value_init.hpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/include/boost/utility/value_init.hpp b/include/boost/utility/value_init.hpp
index 4cd8e1b..b6d1246 100644
--- a/include/boost/utility/value_init.hpp
+++ b/include/boost/utility/value_init.hpp
@@ -31,6 +31,16 @@
 #include <cstring>
 #include <new>
 
+#ifdef BOOST_MSVC
+#pragma warning(push)
+#if _MSC_VER >= 1310
+// When using MSVC 7.1 or higher, placement new, "new (&x) T()", may trigger warning C4345:
+// "behavior change: an object of POD type constructed with an initializer of the form ()
+// will be default-initialized".  There is no need to worry about this, though.
+#pragma warning(disable: 4345)
+#endif
+#endif
+
 namespace boost {
 
 namespace vinit_detail {
@@ -89,6 +99,11 @@ class non_const_T_base
     mutable typename ::boost::aligned_storage<sizeof(T), ::boost::alignment_of<T>::value>::type x;
 } ;
 
+#ifdef BOOST_MSVC
+// Restores the state of warning C4345.
+#pragma warning(pop)
+#endif
+
 #else
 
 namespace boost {