1 // Copyright David Abrahams 2003.

     2 // Distributed under the Boost Software License, Version 1.0. (See

     3 // accompanying file LICENSE_1_0.txt or copy at

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

     5 #ifndef IMPLICIT_CAST_DWA200356_HPP

     6 # define IMPLICIT_CAST_DWA200356_HPP

     7 

     8 # include <boost/mpl/identity.hpp>

     9 

    10 namespace boost {

    11 

    12 // implementation originally suggested by C. Green in

    13 // http://lists.boost.org/MailArchives/boost/msg00886.php

    14 

    15 // The use of identity creates a non-deduced form, so that the

    16 // explicit template argument must be supplied

    17 template <typename T>

    18 inline T implicit_cast (typename mpl::identity<T>::type x) {

    19     return x;

    20 }

    21 

    22 // incomplete return type now is here

    23 //template <typename T>

    24 //void implicit_cast (...);

    25 

    26 

    27 } // namespace boost

    28 

    29 #endif // IMPLICIT_CAST_DWA200356_HPP