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Exception.h
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1 // -*- C++ -*-
2 /* GG is a GUI for SDL and OpenGL.
3 Copyright (C) 2003-2008 T. Zachary Laine
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public License
7 as published by the Free Software Foundation; either version 2.1
8 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA
19
20 If you do not wish to comply with the terms of the LGPL please
21 contact the author as other terms are available for a fee.
22
23 Zach Laine
24 whatwasthataddress@gmail.com */
25
29 #ifndef _GG_Exception_h_
30 #define _GG_Exception_h_
31
32 #include <GG/Export.h>
33
34 #include <stdexcept>
35 #include <string>
36
37
38 namespace GG {
39
45 class GG_API ExceptionBase : public std::exception
46 {
47 public:
48 ExceptionBase() throw() {}
49 ExceptionBase(const std::string& msg) throw() : m_msg(msg) {}
50 ~ExceptionBase() throw() {}
51
52 virtual const char* type() const throw() = 0;
53 virtual const char* what() const throw() {return m_msg.c_str();}
54
55 private:
56 std::string m_msg;
57 };
58
61 #define GG_EXCEPTION( name ) \
62 class GG_API name : public ExceptionBase \
63 { \
64 public: \
65 name () throw() : ExceptionBase() {} \
66 name (const std::string& msg) throw() : ExceptionBase(msg) {} \
67 virtual const char* type() const throw() \
68 {return "GG::" # name ;} \
69 };
70
74 #define GG_ABSTRACT_EXCEPTION( name ) \
75 class GG_API name : public ExceptionBase \
76 { \
77 public: \
78 name () throw() : ExceptionBase() {} \
79 name (const std::string& msg) throw() : ExceptionBase(msg) {} \
80 virtual const char* type() const throw() = 0; \
81 };
82
86 #define GG_CONCRETE_EXCEPTION( name, class_name, superclass ) \
87 class GG_API name : public superclass \
88 { \
89 public: \
90 name () throw() : superclass () {} \
91 name (const std::string& msg) throw() : superclass (msg) {} \
92 virtual const char* type() const throw() \
93 {return # class_name "::" # name ;} \
94 };
95
96 } // namespace GG
97
98 #endif