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00001 // ======================================================================== // 00002 // // 00003 // File : rs_assert.cpp // 00004 // Purpose : // 00005 // Time-stamp: <Wed May/08/2002 20:31 MET Coder@ReallySoft.de> // 00006 // // 00007 // (C) May 2002 by Ralf Westram // 00008 // // 00009 // Permission to use, copy, modify, distribute and sell this software // 00010 // and its documentation for any purpose is hereby granted without fee, // 00011 // provided that the above copyright notice appear in all copies and // 00012 // that both that copyright notice and this permission notice appear // 00013 // in supporting documentation. // 00014 // // 00015 // Ralf Westram makes no representations about the suitability of this // 00016 // software for any purpose. It is provided "as is" without express or // 00017 // implied warranty. // 00018 // // 00019 // ======================================================================== // 00020 00021 #include "rs_assert.h" 00022 00023 #include <Err.h> 00024 #include <Tools.h> 00025 #include <stdexcept> 00026 00027 00028 using namespace std; 00029 using namespace rs; 00030 00031 static bool initialized = false; 00032 static terminate_handler old_terminate = 0; 00033 00034 using namespace rs; 00035 using namespace rs::err; 00036 using namespace rs::str; 00037 00038 namespace rs { 00039 // --------------------------------------------- 00040 // void handle_exception(exception& e) 00041 // --------------------------------------------- 00042 void handle_exception(exception& e) { 00043 Error *error = dynamic_cast<Error*>(&e); 00044 00045 if (error) { 00046 error->print(cerr); 00047 } 00048 else { 00049 try { 00050 reThrow(e); 00051 } 00052 catch (Error& E) { E.print(cerr); } 00053 catch (...) { 00054 InternalError E(strf("unknown exception: %s", e.what())); 00055 E.print(cerr); 00056 } 00057 } 00058 } 00059 }; 00060 00061 // -------------------------------------- 00062 // static void real_terminate() 00063 // -------------------------------------- 00064 static void real_terminate() { 00065 #if defined(DEBUG) 00066 cerr << "Program terminating..\n"; 00067 #endif // DEBUG 00068 if (uncaught_exception()) { 00069 cerr << "An uncaught exception occurred.\n\n" 00070 << "Maybe you forgot to put the following code into your main():\n\n" 00071 << "try {\n" 00072 << " // your stuff\n" 00073 << " return EXIT_SUCCESS;\n" 00074 << "}\n" 00075 << "catch (exception& e) { handle_exception(e); }\n" 00076 << "catch (...) { Error e(\"Unknown exception\"); e.print(cerr); }\n" 00077 << "return EXIT_FAILURE;\n" 00078 ; 00079 } 00080 00081 old_terminate(); 00082 } 00083 00084 // start of implementation of class Terminator: 00085 00086 // --------------------------------- 00087 // Terminator::Terminator() 00088 // --------------------------------- 00089 Terminator::Terminator() 00090 { 00091 hassert(!initialized); 00092 initialized = true; 00093 old_terminate = set_terminate(real_terminate); 00094 } 00095 00096 // ---------------------------------- 00097 // Terminator::~Terminator() 00098 // ---------------------------------- 00099 Terminator::~Terminator() 00100 { 00101 set_terminate(old_terminate); 00102 } 00103 00104 // -end- of implementation of class Terminator. 00105
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