From 21dc552cf96ba37a704e313f91fdcf27b3901a32 Mon Sep 17 00:00:00 2001
From: Andrey Semashev <andrey.semashev@gmail.com>
Date: Fri, 2 Sep 2016 19:14:00 +0300
Subject: [PATCH] Added a workaround for gcc 4.6 in C++11 mode as it can't seem
 to handle defaulted functions with noexcept specifier. The problem was
 discovered with autotests.

---
 include/boost/utility/string_ref.hpp  | 9 +++++++--
 include/boost/utility/string_view.hpp | 9 +++++++--
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/include/boost/utility/string_ref.hpp b/include/boost/utility/string_ref.hpp
index 447d3cc..5acf346 100644
--- a/include/boost/utility/string_ref.hpp
+++ b/include/boost/utility/string_ref.hpp
@@ -27,6 +27,11 @@
 #include <string>
 #include <iosfwd>
 
+#if defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS) || (defined(BOOST_GCC) && ((BOOST_GCC+0) / 100) <= 406)
+// GCC 4.6 cannot handle a defaulted function with noexcept specifier
+#define BOOST_STRING_REF_NO_CXX11_DEFAULTED_NOEXCEPT_FUNCTIONS
+#endif
+
 namespace boost {
 
     namespace detail {
@@ -63,14 +68,14 @@ namespace boost {
         // by defaulting these functions, basic_string_ref becomes
         //  trivially copy/move constructible.
         BOOST_CONSTEXPR basic_string_ref (const basic_string_ref &rhs) BOOST_NOEXCEPT
-#ifndef BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#ifndef BOOST_STRING_REF_NO_CXX11_DEFAULTED_NOEXCEPT_FUNCTIONS
             = default;
 #else
             : ptr_(rhs.ptr_), len_(rhs.len_) {}
 #endif
 
         basic_string_ref& operator=(const basic_string_ref &rhs) BOOST_NOEXCEPT
-#ifndef BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#ifndef BOOST_STRING_REF_NO_CXX11_DEFAULTED_NOEXCEPT_FUNCTIONS
             = default;
 #else
             {
diff --git a/include/boost/utility/string_view.hpp b/include/boost/utility/string_view.hpp
index aae7f25..f5d5eb9 100644
--- a/include/boost/utility/string_view.hpp
+++ b/include/boost/utility/string_view.hpp
@@ -30,6 +30,11 @@
 #include <cstring>
 #include <iosfwd>
 
+#if defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS) || (defined(BOOST_GCC) && ((BOOST_GCC+0) / 100) <= 406)
+// GCC 4.6 cannot handle a defaulted function with noexcept specifier
+#define BOOST_STRING_VIEW_NO_CXX11_DEFAULTED_NOEXCEPT_FUNCTIONS
+#endif
+
 namespace boost {
 
     namespace detail {
@@ -68,14 +73,14 @@ namespace boost {
       // by defaulting these functions, basic_string_ref becomes
       //  trivially copy/move constructible.
       BOOST_CONSTEXPR basic_string_view(const basic_string_view &rhs) BOOST_NOEXCEPT
-#ifndef BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#ifndef BOOST_STRING_VIEW_NO_CXX11_DEFAULTED_NOEXCEPT_FUNCTIONS
         = default;
 #else
         : ptr_(rhs.ptr_), len_(rhs.len_) {}
 #endif
 
       basic_string_view& operator=(const basic_string_view &rhs) BOOST_NOEXCEPT
-#ifndef BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#ifndef BOOST_STRING_VIEW_NO_CXX11_DEFAULTED_NOEXCEPT_FUNCTIONS
             = default;
 #else
         {