1 /** @file registrar.cpp
3 * GiNaC's class registrar (for class basic and all classes derived from it). */
6 * GiNaC Copyright (C) 1999-2003 Johannes Gutenberg University Mainz, Germany
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.
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.
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
27 #include "registrar.h"
31 registered_class_info *first_registered_class = NULL;
33 /** Find registered_class_info strucure by class name. */
34 static const registered_class_info *find_registered_class_info(const std::string &class_name)
36 // Use a map for faster lookup. The registered_class_info list doesn't
37 // change at run-time, so it's sufficient to construct the map once
38 // on the first trip through this function.
39 typedef std::map<std::string, const registered_class_info *> name_map_type;
40 static name_map_type name_map;
41 static bool name_map_initialized = false;
43 if (!name_map_initialized) {
45 const registered_class_info *p = first_registered_class;
47 name_map[p->name] = p;
50 name_map_initialized = true;
53 name_map_type::const_iterator it = name_map.find(class_name);
54 if (it == name_map.end())
55 throw (std::runtime_error("class '" + class_name + "' not registered"));
60 unsigned int find_tinfo_key(const std::string &class_name)
62 const registered_class_info *p = find_registered_class_info(class_name);
66 unarch_func find_unarch_func(const std::string &class_name)
68 const registered_class_info *p = find_registered_class_info(class_name);