1 #ifndef BOOST_POINTER_TO_OTHER_HPP_INCLUDED

     2 #define BOOST_POINTER_TO_OTHER_HPP_INCLUDED

     3 

     4 //

     5 //  pointer_to_other.hpp

     6 //

     7 //  (C) Copyright Ion Gaztaņaga 2005.

     8 //  Copyright (c) 2005 Peter Dimov.

     9 //

    10 //  Distributed under the Boost Software License, Version 1.0.

    11 //

    12 //  (See accompanying file LICENSE_1_0.txt or copy at 

    13 //  http://www.boost.org/LICENSE_1_0.txt)

    14 //

    15 //  See http://www.boost.org/libs/smart_ptr/pointer_to_other.html

    16 //

    17 

    18 namespace boost

    19 {

    20 

    21 // Defines the same pointer type (raw or smart) to another pointee type

    22 

    23 template<class T, class U>

    24 struct pointer_to_other;

    25 

    26 template<class T, class U, 

    27          template<class> class Sp>

    28 struct pointer_to_other< Sp<T>, U >

    29 {

    30    typedef Sp<U> type;

    31 };

    32 

    33 template<class T, class T2, class U, 

    34          template<class, class> class Sp>

    35 struct pointer_to_other< Sp<T, T2>, U >

    36 {

    37    typedef Sp<U, T2> type;

    38 };

    39 

    40 template<class T, class T2, class T3, class U, 

    41          template<class, class, class> class Sp>

    42 struct pointer_to_other< Sp<T, T2, T3>, U >

    43 {

    44    typedef Sp<U, T2, T3> type;

    45 };

    46 

    47 template<class T, class U>

    48 struct pointer_to_other< T*, U >

    49 {

    50    typedef U* type;

    51 };

    52 

    53 } // namespace boost

    54 

    55 #endif // #ifndef BOOST_POINTER_TO_OTHER_HPP_INCLUDED