diff --git a/include/boost/smart_ptr/weak_ptr.hpp b/include/boost/smart_ptr/weak_ptr.hpp
index d3735410f3..80a103ae2d 100644
--- a/include/boost/smart_ptr/weak_ptr.hpp
+++ b/include/boost/smart_ptr/weak_ptr.hpp
@@ -15,7 +15,6 @@
 
 #include <boost/smart_ptr/detail/shared_count.hpp>
 #include <boost/smart_ptr/shared_ptr.hpp>
-#include <boost/smart_ptr/detail/sp_noexcept.hpp>
 #include <memory>
 #include <cstddef>
 
@@ -33,18 +32,18 @@ template<class T> class weak_ptr
 
     typedef typename boost::detail::sp_element< T >::type element_type;
 
-    BOOST_CONSTEXPR weak_ptr() BOOST_SP_NOEXCEPT : px(0), pn()
+    BOOST_CONSTEXPR weak_ptr() noexcept : px(0), pn()
     {
     }
 
 //  generated copy constructor, assignment, destructor are fine...
 // ... except in C++0x, move disables the implicit copy
 
-    weak_ptr( weak_ptr const & r ) BOOST_SP_NOEXCEPT : px( r.px ), pn( r.pn )
+    weak_ptr( weak_ptr const & r ) noexcept : px( r.px ), pn( r.pn )
     {
     }
 
-    weak_ptr & operator=( weak_ptr const & r ) BOOST_SP_NOEXCEPT
+    weak_ptr & operator=( weak_ptr const & r ) noexcept
     {
         px = r.px;
         pn = r.pn;
@@ -70,14 +69,14 @@ template<class T> class weak_ptr
 
     template<class Y>
     weak_ptr( weak_ptr<Y> const & r, typename boost::detail::sp_enable_if_convertible<Y,T>::type = boost::detail::sp_empty() )
-    BOOST_SP_NOEXCEPT : px(r.lock().get()), pn(r.pn)
+    noexcept : px(r.lock().get()), pn(r.pn)
     {
         boost::detail::sp_assert_convertible< Y, T >();
     }
 
     template<class Y>
     weak_ptr( weak_ptr<Y> && r, typename boost::detail::sp_enable_if_convertible<Y,T>::type = boost::detail::sp_empty() )
-    BOOST_SP_NOEXCEPT : px( r.lock().get() ), pn( static_cast< boost::detail::weak_count && >( r.pn ) )
+    noexcept : px( r.lock().get() ), pn( static_cast< boost::detail::weak_count && >( r.pn ) )
     {
         boost::detail::sp_assert_convertible< Y, T >();
         r.px = 0;
@@ -85,13 +84,13 @@ template<class T> class weak_ptr
 
     // for better efficiency in the T == Y case
     weak_ptr( weak_ptr && r )
-    BOOST_SP_NOEXCEPT : px( r.px ), pn( static_cast< boost::detail::weak_count && >( r.pn ) )
+    noexcept : px( r.px ), pn( static_cast< boost::detail::weak_count && >( r.pn ) )
     {
         r.px = 0;
     }
 
     // for better efficiency in the T == Y case
-    weak_ptr & operator=( weak_ptr && r ) BOOST_SP_NOEXCEPT
+    weak_ptr & operator=( weak_ptr && r ) noexcept
     {
         this_type( static_cast< weak_ptr && >( r ) ).swap( *this );
         return *this;
@@ -100,26 +99,26 @@ template<class T> class weak_ptr
 
     template<class Y>
     weak_ptr( shared_ptr<Y> const & r, typename boost::detail::sp_enable_if_convertible<Y,T>::type = boost::detail::sp_empty() )
-    BOOST_SP_NOEXCEPT : px( r.px ), pn( r.pn )
+    noexcept : px( r.px ), pn( r.pn )
     {
         boost::detail::sp_assert_convertible< Y, T >();
     }
 
     // aliasing
-    template<class Y> weak_ptr(shared_ptr<Y> const & r, element_type * p) BOOST_SP_NOEXCEPT: px( p ), pn( r.pn )
+    template<class Y> weak_ptr(shared_ptr<Y> const & r, element_type * p) noexcept: px( p ), pn( r.pn )
     {
     }
 
-    template<class Y> weak_ptr(weak_ptr<Y> const & r, element_type * p) BOOST_SP_NOEXCEPT: px( p ), pn( r.pn )
+    template<class Y> weak_ptr(weak_ptr<Y> const & r, element_type * p) noexcept: px( p ), pn( r.pn )
     {
     }
 
-    template<class Y> weak_ptr(weak_ptr<Y> && r, element_type * p) BOOST_SP_NOEXCEPT: px( p ), pn( std::move( r.pn ) )
+    template<class Y> weak_ptr(weak_ptr<Y> && r, element_type * p) noexcept: px( p ), pn( std::move( r.pn ) )
     {
     }
 
     template<class Y>
-    weak_ptr & operator=( weak_ptr<Y> const & r ) BOOST_SP_NOEXCEPT
+    weak_ptr & operator=( weak_ptr<Y> const & r ) noexcept
     {
         boost::detail::sp_assert_convertible< Y, T >();
 
@@ -130,14 +129,14 @@ template<class T> class weak_ptr
     }
 
     template<class Y>
-    weak_ptr & operator=( weak_ptr<Y> && r ) BOOST_SP_NOEXCEPT
+    weak_ptr & operator=( weak_ptr<Y> && r ) noexcept
     {
         this_type( static_cast< weak_ptr<Y> && >( r ) ).swap( *this );
         return *this;
     }
 
     template<class Y>
-    weak_ptr & operator=( shared_ptr<Y> const & r ) BOOST_SP_NOEXCEPT
+    weak_ptr & operator=( shared_ptr<Y> const & r ) noexcept
     {
         boost::detail::sp_assert_convertible< Y, T >();
 
@@ -147,63 +146,63 @@ template<class T> class weak_ptr
         return *this;
     }
 
-    shared_ptr<T> lock() const BOOST_SP_NOEXCEPT
+    shared_ptr<T> lock() const noexcept
     {
         return shared_ptr<T>( *this, boost::detail::sp_nothrow_tag() );
     }
 
-    long use_count() const BOOST_SP_NOEXCEPT
+    long use_count() const noexcept
     {
         return pn.use_count();
     }
 
-    bool expired() const BOOST_SP_NOEXCEPT
+    bool expired() const noexcept
     {
         return pn.use_count() == 0;
     }
 
-    bool _empty() const BOOST_SP_NOEXCEPT // extension, not in std::weak_ptr
+    bool _empty() const noexcept // extension, not in std::weak_ptr
     {
         return pn.empty();
     }
 
-    bool empty() const BOOST_SP_NOEXCEPT // extension, not in std::weak_ptr
+    bool empty() const noexcept // extension, not in std::weak_ptr
     {
         return pn.empty();
     }
 
-    void reset() BOOST_SP_NOEXCEPT
+    void reset() noexcept
     {
         this_type().swap(*this);
     }
 
-    void swap(this_type & other) BOOST_SP_NOEXCEPT
+    void swap(this_type & other) noexcept
     {
         std::swap(px, other.px);
         pn.swap(other.pn);
     }
 
-    template<class Y> bool owner_before( weak_ptr<Y> const & rhs ) const BOOST_SP_NOEXCEPT
+    template<class Y> bool owner_before( weak_ptr<Y> const & rhs ) const noexcept
     {
         return pn < rhs.pn;
     }
 
-    template<class Y> bool owner_before( shared_ptr<Y> const & rhs ) const BOOST_SP_NOEXCEPT
+    template<class Y> bool owner_before( shared_ptr<Y> const & rhs ) const noexcept
     {
         return pn < rhs.pn;
     }
 
-    template<class Y> bool owner_equals( weak_ptr<Y> const & rhs ) const BOOST_SP_NOEXCEPT
+    template<class Y> bool owner_equals( weak_ptr<Y> const & rhs ) const noexcept
     {
         return pn == rhs.pn;
     }
 
-    template<class Y> bool owner_equals( shared_ptr<Y> const & rhs ) const BOOST_SP_NOEXCEPT
+    template<class Y> bool owner_equals( shared_ptr<Y> const & rhs ) const noexcept
     {
         return pn == rhs.pn;
     }
 
-    std::size_t owner_hash_value() const BOOST_SP_NOEXCEPT
+    std::size_t owner_hash_value() const noexcept
     {
         return pn.hash_value();
     }
@@ -218,12 +217,12 @@ template<class T> class weak_ptr
 
 };  // weak_ptr
 
-template<class T, class U> inline bool operator<(weak_ptr<T> const & a, weak_ptr<U> const & b) BOOST_SP_NOEXCEPT
+template<class T, class U> inline bool operator<(weak_ptr<T> const & a, weak_ptr<U> const & b) noexcept
 {
     return a.owner_before( b );
 }
 
-template<class T> void swap(weak_ptr<T> & a, weak_ptr<T> & b) BOOST_SP_NOEXCEPT
+template<class T> void swap(weak_ptr<T> & a, weak_ptr<T> & b) noexcept
 {
     a.swap(b);
 }
@@ -236,7 +235,7 @@ template<class T> weak_ptr( shared_ptr<T> ) -> weak_ptr<T>;
 
 // hash_value
 
-template< class T > std::size_t hash_value( boost::weak_ptr<T> const & p ) BOOST_SP_NOEXCEPT
+template< class T > std::size_t hash_value( boost::weak_ptr<T> const & p ) noexcept
 {
     return p.owner_hash_value();
 }
@@ -250,7 +249,7 @@ namespace std
 
 template<class T> struct hash< ::boost::weak_ptr<T> >
 {
-    std::size_t operator()( ::boost::weak_ptr<T> const & p ) const BOOST_SP_NOEXCEPT
+    std::size_t operator()( ::boost::weak_ptr<T> const & p ) const noexcept
     {
         return p.owner_hash_value();
     }
@@ -258,7 +257,7 @@ template<class T> struct hash< ::boost::weak_ptr<T> >
 
 template<class T> struct equal_to< ::boost::weak_ptr<T> >
 {
-    bool operator()( ::boost::weak_ptr<T> const & a, ::boost::weak_ptr<T> const & b ) const BOOST_SP_NOEXCEPT
+    bool operator()( ::boost::weak_ptr<T> const & a, ::boost::weak_ptr<T> const & b ) const noexcept
     {
         return a.owner_equals( b );
     }