From 22ca1336dcfb663d86a6892dbe1e48eee20bb6db Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Wed, 5 Mar 2014 19:30:36 +0000
Subject: MFC r261283:

Import libc++ 3.4 release.  This contains a lot of bugfixes, and some
preliminary support for C++1y.

MFC r261604:

HEAD is not buildable for the past day.  Commit a 'quick fix' in order to permit
buildworld to complete.

Reviewed by:	theraven

MFC r261608:

Apply a cleaner solution for the sign warnings that can occur when
compiling libc++'s <locale> header with -Wsystem-headers on.

This has also been submitted upstream.

Reported by:	asomers

MFC r261801:

An ABI incompatibility crept into the libc++ 3.4 import in r261283.  It
was caused by upstream libc++ commit r194536, which aimed to make the
headers more standards-compliant, by making std::pair's copy constructor
trivial.  Unfortunately, this could cause certain C++ applications using
shared libraries built against the previous version of libc++ to crash.

Fix the ABI incompatibility by making std::pair's copy constructor
non-trivial again.

Please note: Any C++ applications or shared libraries built with libc++
between r261283 and this revision should be recompiled.

Reported by:	stefanf
---
 contrib/libc++/src/optional.cpp | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 contrib/libc++/src/optional.cpp

(limited to 'contrib/libc++/src/optional.cpp')

diff --git a/contrib/libc++/src/optional.cpp b/contrib/libc++/src/optional.cpp
new file mode 100644
index 0000000..b614d81
--- /dev/null
+++ b/contrib/libc++/src/optional.cpp
@@ -0,0 +1,25 @@
+//===------------------------ optional.cpp --------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "experimental/optional"
+
+namespace std  // purposefully not using versioning namespace
+{ namespace experimental {
+
+#ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
+
+bad_optional_access::~bad_optional_access() _NOEXCEPT {}
+
+#else
+
+bad_optional_access::~bad_optional_access() _NOEXCEPT = default;
+
+#endif
+
+}}  // std::experimental
-- 
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