diff --git a/src/libraries/turtle/is_comparable.hpp b/src/libraries/turtle/is_comparable.hpp
deleted file mode 100644
index 24348cc..0000000
--- a/src/libraries/turtle/is_comparable.hpp
+++ /dev/null
@@ -1,50 +0,0 @@
-//
-//  Copyright Mathieu Champlon 2011
-//
-//  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)
-//
-
-#ifndef MOCK_IS_COMPARABLE_HPP_INCLUDED
-#define MOCK_IS_COMPARABLE_HPP_INCLUDED
-
-#include "yes_no_type.hpp"
-#include "sink.hpp"
-#include <boost/type_traits/detail/yes_no_type.hpp>
-#include <boost/type_traits/remove_reference.hpp>
-#include <boost/mpl/bool.hpp>
-
-#ifdef _MSC_VER
-#pragma warning( push )
-#pragma warning( disable: 4913 )
-#endif
-
-namespace mock
-{
-namespace detail
-{
-namespace comparable
-{
-    yes_type operator==( sink, sink );
-
-    template< typename L, typename R >
-    struct impl
-    {
-        static BOOST_DEDUCED_TYPENAME boost::remove_reference< L >::type* l;
-        static BOOST_DEDUCED_TYPENAME boost::remove_reference< R >::type* r;
-        enum { value = sizeof( yes_type(), *l == *r, yes_type() ) == sizeof( yes_type ) };
-    };
-}
-
-    template< typename L, typename R >
-    struct is_comparable : boost::mpl::bool_< comparable::impl< L, R >::value >
-    {};
-}
-}
-
-#ifdef _MSC_VER
-#pragma warning( pop )
-#endif
-
-#endif // #ifndef MOCK_IS_COMPARABLE_HPP_INCLUDED
diff --git a/src/tests/turtle_test/is_comparable_test.cpp b/src/tests/turtle_test/is_comparable_test.cpp
deleted file mode 100644
index d94cb75..0000000
--- a/src/tests/turtle_test/is_comparable_test.cpp
+++ /dev/null
@@ -1,72 +0,0 @@
-//
-//  Copyright Mathieu Champlon 2011
-//
-//  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)
-//
-
-#include <turtle/is_comparable.hpp>
-
-#include <boost/test/auto_unit_test.hpp>
-#define BOOST_LIB_NAME boost_unit_test_framework
-#include <boost/config/auto_link.hpp>
-
-namespace
-{
-    struct declared_but_not_defined;
-
-    struct non_comparable
-    {};
-
-    struct comparable
-    {};
-    bool operator==( const comparable&, int );
-    bool operator==( int, const comparable& );
-
-    struct derived_from_comparable : comparable
-    {};
-
-    struct convertible_to_comparable
-    {
-        operator comparable() const;
-    };
-
-    template< typename T >
-    struct template_comparable
-    {};
-    template< typename T >
-    bool operator==( const template_comparable< T >&, int );
-    template< typename T >
-    bool operator==( int, const template_comparable< T >& );
-
-    struct comparable_to_everything
-    {
-        template< typename T >
-        bool operator==( const T& ) const;
-    };
-}
-
-BOOST_MPL_ASSERT_NOT(( mock::detail::is_comparable< int, declared_but_not_defined > ));
-BOOST_MPL_ASSERT_NOT(( mock::detail::is_comparable< declared_but_not_defined, int > ));
-
-BOOST_MPL_ASSERT_NOT(( mock::detail::is_comparable< int, non_comparable > ));
-BOOST_MPL_ASSERT_NOT(( mock::detail::is_comparable< non_comparable, int > ));
-
-BOOST_MPL_ASSERT(( mock::detail::is_comparable< int, comparable > ));
-BOOST_MPL_ASSERT(( mock::detail::is_comparable< int, comparable& > ));
-BOOST_MPL_ASSERT(( mock::detail::is_comparable< int, const comparable& > ));
-BOOST_MPL_ASSERT(( mock::detail::is_comparable< comparable, int > ));
-BOOST_MPL_ASSERT(( mock::detail::is_comparable< const comparable&, int > ));
-
-BOOST_MPL_ASSERT(( mock::detail::is_comparable< int, template_comparable< int > > ));
-BOOST_MPL_ASSERT(( mock::detail::is_comparable< template_comparable< int >, int > ));
-
-BOOST_MPL_ASSERT(( mock::detail::is_comparable< int, derived_from_comparable > ));
-BOOST_MPL_ASSERT(( mock::detail::is_comparable< derived_from_comparable, int > ));
-
-BOOST_MPL_ASSERT(( mock::detail::is_comparable< int, convertible_to_comparable > ));
-BOOST_MPL_ASSERT(( mock::detail::is_comparable< convertible_to_comparable, int > ));
-
-BOOST_MPL_ASSERT_NOT(( mock::detail::is_comparable< int, comparable_to_everything > ));
-BOOST_MPL_ASSERT(( mock::detail::is_comparable< comparable_to_everything, int > ));