2 * Copyright 2002, The libsigc++ Development Team
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 #ifndef _SIGC_TYPE_TRAIT_H_
20 #define _SIGC_TYPE_TRAIT_H_
22 #include <sigc++config.h>
27 template <class T_type>
31 typedef const T_type& take;
34 template <class T_type, int N>
35 struct type_trait<T_type[N]>
37 typedef T_type*& pass;
38 typedef const T_type*& take;
41 template <class T_type>
42 struct type_trait<T_type&>
48 template <class T_type>
49 struct type_trait<const T_type&>
51 typedef const T_type& pass;
52 typedef const T_type& take;
56 struct type_trait<void>
63 using type_trait_pass_t = typename type_trait<T>::pass;
66 using type_trait_take_t = typename type_trait<T>::take;
68 } /* namespace sigc */
70 #endif /* _SIGC_TYPE_TRAIT_H_ */