|
sl@0
|
1 |
// Copyright David Abrahams 2003.
|
|
sl@0
|
2 |
// Distributed under the Boost Software License, Version 1.0. (See
|
|
sl@0
|
3 |
// accompanying file LICENSE_1_0.txt or copy at
|
|
sl@0
|
4 |
// http://www.boost.org/LICENSE_1_0.txt)
|
|
sl@0
|
5 |
#ifndef IMPLICIT_CAST_DWA200356_HPP
|
|
sl@0
|
6 |
# define IMPLICIT_CAST_DWA200356_HPP
|
|
sl@0
|
7 |
|
|
sl@0
|
8 |
# include <boost/mpl/identity.hpp>
|
|
sl@0
|
9 |
|
|
sl@0
|
10 |
namespace boost {
|
|
sl@0
|
11 |
|
|
sl@0
|
12 |
// implementation originally suggested by C. Green in
|
|
sl@0
|
13 |
// http://lists.boost.org/MailArchives/boost/msg00886.php
|
|
sl@0
|
14 |
|
|
sl@0
|
15 |
// The use of identity creates a non-deduced form, so that the
|
|
sl@0
|
16 |
// explicit template argument must be supplied
|
|
sl@0
|
17 |
template <typename T>
|
|
sl@0
|
18 |
inline T implicit_cast (typename mpl::identity<T>::type x) {
|
|
sl@0
|
19 |
return x;
|
|
sl@0
|
20 |
}
|
|
sl@0
|
21 |
|
|
sl@0
|
22 |
// incomplete return type now is here
|
|
sl@0
|
23 |
//template <typename T>
|
|
sl@0
|
24 |
//void implicit_cast (...);
|
|
sl@0
|
25 |
|
|
sl@0
|
26 |
|
|
sl@0
|
27 |
} // namespace boost
|
|
sl@0
|
28 |
|
|
sl@0
|
29 |
#endif // IMPLICIT_CAST_DWA200356_HPP
|