From c7b8d8f72a2a1b68450253f5532443ce6202122f Mon Sep 17 00:00:00 2001
From: Tobias Reh <treh@think-cell.com>
Date: Thu, 25 Aug 2016 09:04:18 +0200
Subject: [PATCH] use <iosfwd> instead of producing undefined behavior

17.6.4.2.1 Namespace std [namespace.std]
The behavior of a C++ program is undefined if it adds declarations or
definitions to namespace std or to a namespace within namespace std
unless otherwise specified.
---
 include/boost/interprocess/detail/std_fwd.hpp   | 57 -------------------------
 include/boost/interprocess/interprocess_fwd.hpp |  2 +-
 2 files changed, 1 insertion(+), 58 deletions(-)
 delete mode 100644 include/boost/interprocess/detail/std_fwd.hpp

diff --git a/include/boost/interprocess/detail/std_fwd.hpp b/include/boost/interprocess/detail/std_fwd.hpp
deleted file mode 100644
index 282771c3..00000000
--- a/include/boost/interprocess/detail/std_fwd.hpp
+++ /dev/null
@@ -1,57 +0,0 @@
-//////////////////////////////////////////////////////////////////////////////
-//
-// (C) Copyright Ion Gaztanaga 2014-2015. Distributed under the Boost
-// Software License, Version 1.0. (See accompanying file
-// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-// See http://www.boost.org/libs/interprocess for documentation.
-//
-//////////////////////////////////////////////////////////////////////////////
-#ifndef BOOST_INTERPROCESS_DETAIL_STD_FWD_HPP
-#define BOOST_INTERPROCESS_DETAIL_STD_FWD_HPP
-
-#ifndef BOOST_CONFIG_HPP
-#  include <boost/config.hpp>
-#endif
-#
-#if defined(BOOST_HAS_PRAGMA_ONCE)
-#  pragma once
-#endif
-
-//////////////////////////////////////////////////////////////////////////////
-//                        Standard predeclarations
-//////////////////////////////////////////////////////////////////////////////
-
-#include <boost/move/detail/std_ns_begin.hpp>
-BOOST_MOVE_STD_NS_BEG
-
-struct input_iterator_tag;
-struct forward_iterator_tag;
-struct bidirectional_iterator_tag;
-struct random_access_iterator_tag;
-
-template<class T>
-struct char_traits;
-
-#if defined(BOOST_MSVC) && (BOOST_MSVC >= 1800) &&defined(BOOST_DINKUMWARE_STDLIB)
-#define BOOST_INTERPROCESS_STD_FWD_MSVC_IOS_BUG
-// Compiler bug workaround. Previous versions (<= VC11)
-// used dummy virtual functions
-#  pragma vtordisp(push, 2)
-#endif
-
-template<class CharT, class Traits>
-class basic_ostream;
-
-template<class CharT, class Traits>
-class basic_istream;
-
-#ifdef BOOST_INTERPROCESS_STD_FWD_MSVC_IOS_BUG
-#  pragma vtordisp(pop)
-#  undef BOOST_INTERPROCESS_STD_FWD_MSVC_IOS_BUG
-#endif
-
-BOOST_MOVE_STD_NS_END
-#include <boost/move/detail/std_ns_end.hpp>
-
-#endif //#ifndef BOOST_INTERPROCESS_DETAIL_STD_FWD_HPP
diff --git a/include/boost/interprocess/interprocess_fwd.hpp b/include/boost/interprocess/interprocess_fwd.hpp
index 882256e9..cf866b64 100644
--- a/include/boost/interprocess/interprocess_fwd.hpp
+++ b/include/boost/interprocess/interprocess_fwd.hpp
@@ -22,7 +22,7 @@
 #  pragma once
 #endif
 
-#include <boost/interprocess/detail/std_fwd.hpp>
+#include <iosfwd>
 
 //! \file
 //! This header file forward declares the basic interprocess types: