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1 | // (C) Copyright Gennadiy Rozental 2001. | |
2 | // Distributed under the Boost Software License, Version 1.0. | |
3 | // (See accompanying file LICENSE_1_0.txt or copy at | |
4 | // http://www.boost.org/LICENSE_1_0.txt) | |
5 | ||
6 | // See http://www.boost.org/libs/test for the library home page. | |
7 | // | |
8 | // File : $RCSfile$ | |
9 | // | |
10 | // Version : $Revision$ | |
11 | // | |
12 | // Description : defines the is_cstring type trait | |
13 | // *************************************************************************** | |
14 | ||
15 | #ifndef BOOST_TEST_UTILS_IS_CSTRING_HPP | |
16 | #define BOOST_TEST_UTILS_IS_CSTRING_HPP | |
17 | ||
18 | // Boost | |
19 | #include <boost/mpl/bool.hpp> | |
20 | #include <boost/type_traits/is_same.hpp> | |
21 | #include <boost/type_traits/decay.hpp> | |
22 | #include <boost/type_traits/remove_pointer.hpp> | |
23 | ||
24 | //____________________________________________________________________________// | |
25 | ||
26 | namespace boost { | |
27 | namespace unit_test { | |
28 | ||
29 | // ************************************************************************** // | |
30 | // ************** is_cstring ************** // | |
31 | // ************************************************************************** // | |
32 | ||
33 | namespace ut_detail { | |
34 | ||
35 | template<typename T> | |
36 | struct is_cstring_impl : public mpl::false_ {}; | |
37 | ||
38 | template<typename T> | |
39 | struct is_cstring_impl<T const*> : public is_cstring_impl<T*> {}; | |
40 | ||
41 | template<typename T> | |
42 | struct is_cstring_impl<T const* const> : public is_cstring_impl<T*> {}; | |
43 | ||
44 | template<> | |
45 | struct is_cstring_impl<char*> : public mpl::true_ {}; | |
46 | ||
47 | template<> | |
48 | struct is_cstring_impl<wchar_t*> : public mpl::true_ {}; | |
49 | ||
50 | } // namespace ut_detail | |
51 | ||
52 | template<typename T> | |
53 | struct is_cstring : public ut_detail::is_cstring_impl<typename decay<T>::type> {}; | |
54 | ||
55 | } // namespace unit_test | |
56 | } // namespace boost | |
57 | ||
58 | #endif // BOOST_TEST_UTILS_IS_CSTRING_HPP |