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* Ctors of class numeric are not explicit any more. All built-in callers for
[ginac.git] / ginac / registrar.cpp
1 /** @file registrar.cpp
2  *
3  *  GiNaC's class registrar (for class basic and all classes derived from it). */
4
5 /*
6  *  GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany
7  *
8  *  This program is free software; you can redistribute it and/or modify
9  *  it under the terms of the GNU General Public License as published by
10  *  the Free Software Foundation; either version 2 of the License, or
11  *  (at your option) any later version.
12  *
13  *  This program is distributed in the hope that it will be useful,
14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  *  GNU General Public License for more details.
17  *
18  *  You should have received a copy of the GNU General Public License
19  *  along with this program; if not, write to the Free Software
20  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
21  */
22
23 #include <string>
24 #include <stdexcept>
25
26 #include "registrar.h"
27
28 namespace GiNaC {
29
30 registered_class_info *first_registered_class = NULL;
31
32 /** Find registered_class_info strucure by class name. */
33 static inline registered_class_info *find_registered_class_info(const std::string &class_name)
34 {
35         registered_class_info *p = first_registered_class;
36         while (p) {
37                 if (class_name == p->name)
38                         return p;
39                 p = p->next;
40         }
41         throw (std::runtime_error("class '" + class_name + "' not registered"));
42 }
43
44 unsigned int find_tinfo_key(const std::string &class_name)
45 {
46         registered_class_info *p = find_registered_class_info(class_name);
47         return p->tinfo_key;
48 }
49
50 unarch_func find_unarch_func(const std::string &class_name)
51 {
52         registered_class_info *p = find_registered_class_info(class_name);
53         return p->unarchive;
54 }
55
56
57 } // namespace GiNaC