diff --git a/turtle/detail/operators.hpp b/turtle/detail/operators.hpp
deleted file mode 100644
index 10cfcff..0000000
--- a/turtle/detail/operators.hpp
+++ /dev/null
@@ -1,110 +0,0 @@
-// http://turtle.sourceforge.net
-//
-// Copyright Mathieu Champlon 2010
-//
-// 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_OPERATORS_HPP_INCLUDED
-#define MOCK_OPERATORS_HPP_INCLUDED
-
-#include "../constraint.hpp"
-#include "../log.hpp"
-
-namespace mock
-{
-namespace detail
-{
-    template< typename Constraint1, typename Constraint2 >
-    class and_
-    {
-    public:
-        and_( const Constraint1& c1, const Constraint2& c2 )
-            : c1_( c1 )
-            , c2_( c2 )
-        {}
-        template< typename Actual >
-        bool operator()( const Actual& actual ) const
-        {
-            return c1_( actual ) && c2_( actual );
-        }
-        friend std::ostream& operator<<( std::ostream& s, const and_& a )
-        {
-            return s << "( " << mock::format( a.c1_ )
-                << " && " << mock::format( a.c2_ ) << " )";
-        }
-    private:
-        Constraint1 c1_;
-        Constraint2 c2_;
-    };
-
-    template< typename Constraint1, typename Constraint2 >
-    class or_
-    {
-    public:
-        or_( const Constraint1& c1, const Constraint2& c2 )
-            : c1_( c1 )
-            , c2_( c2 )
-        {}
-        template< typename Actual >
-        bool operator()( const Actual& actual ) const
-        {
-            return c1_( actual ) || c2_( actual );
-        }
-        friend std::ostream& operator<<( std::ostream& s, const or_& o )
-        {
-            return s << "( " << mock::format( o.c1_ )
-                << " || " << mock::format( o.c2_ )<< " )";
-        }
-    private:
-        Constraint1 c1_;
-        Constraint2 c2_;
-    };
-
-    template< typename Constraint >
-    class not_
-    {
-    public:
-        explicit not_( const Constraint& f )
-            : f_( f )
-        {}
-        template< typename Actual >
-        bool operator()( const Actual& actual ) const
-        {
-            return ! f_( actual );
-        }
-        friend std::ostream& operator<<( std::ostream& s, const not_& n )
-        {
-            return s << "! " << mock::format( n.f_ );
-        }
-    private:
-        Constraint f_;
-    };
-}
-
-    template< typename Constraint1, typename Constraint2 >
-    const constraint< detail::or_< Constraint1, Constraint2 > >
-        operator||( const constraint< Constraint1 >& lhs,
-                    const constraint< Constraint2 >& rhs )
-    {
-        return detail::or_< Constraint1, Constraint2 >( lhs.f_, rhs.f_ );
-    }
-
-    template< typename Constraint1, typename Constraint2 >
-    const constraint< detail::and_< Constraint1, Constraint2 > >
-        operator&&( const constraint< Constraint1 >& lhs,
-                    const constraint< Constraint2 >& rhs )
-    {
-        return detail::and_< Constraint1, Constraint2 >( lhs.f_, rhs.f_ );
-    }
-
-    template< typename Constraint >
-    const constraint< detail::not_< Constraint > >
-        operator!( const constraint< Constraint >& c )
-    {
-        return detail::not_< Constraint >( c.f_ );
-    }
-} // mock
-
-#endif // MOCK_OPERATORS_HPP_INCLUDED