Changes in / [293:47fbc814aa31:294:cbe3ec2d59d2] in lemon-main
- Files:
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- 11 edited
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demo/lgf_demo.cc
r293 r294 50 50 node("target", t). // read 'target' node to t 51 51 run(); 52 } catch ( DataFormatError& error) { // check if there was any error52 } catch (Exception& error) { // check if there was any error 53 53 std::cerr << "Error: " << error.what() << std::endl; 54 54 return -1; -
lemon/arg_parser.h
r261 r290 311 311 ///This is the type of the return value of ArgParser::operator[](). 312 312 ///It automatically converts to \c int, \c double, \c bool or 313 ///\c std::string if the type of the option matches, otherwise it 314 ///throws an exception (i.e. it performs runtime type checking). 313 ///\c std::string if the type of the option matches, which is checked 314 ///with an \ref LEMON_ASSERT "assertion" (i.e. it performs runtime 315 ///type checking). 315 316 class RefType 316 317 { -
lemon/assert.h
r277 r290 109 109 /// \brief Macro for assertion with customizable message 110 110 /// 111 /// Macro for assertion with customizable message. 111 /// Macro for assertion with customizable message. 112 112 /// \param exp An expression that must be convertible to \c bool. If it is \c 113 113 /// false, then an assertion is raised. The concrete behaviour depends on the -
lemon/bfs.h
r288 r292 136 136 class Bfs { 137 137 public: 138 ///\ref Exception for uninitialized parameters.139 140 ///This error represents problems in the initialization of the141 ///parameters of the algorithm.142 class UninitializedParameter : public lemon::UninitializedParameter {143 public:144 virtual const char* what() const throw() {145 return "lemon::Bfs::UninitializedParameter";146 }147 };148 138 149 139 ///The type of the digraph the algorithm runs on. … … 233 223 static PredMap *createPredMap(const Digraph &) 234 224 { 235 throw UninitializedParameter(); 225 LEMON_ASSERT(false, "PredMap is not initialized"); 226 return 0; // ignore warnings 236 227 } 237 228 }; … … 251 242 static DistMap *createDistMap(const Digraph &) 252 243 { 253 throw UninitializedParameter(); 244 LEMON_ASSERT(false, "DistMap is not initialized"); 245 return 0; // ignore warnings 254 246 } 255 247 }; … … 269 261 static ReachedMap *createReachedMap(const Digraph &) 270 262 { 271 throw UninitializedParameter(); 263 LEMON_ASSERT(false, "ReachedMap is not initialized"); 264 return 0; // ignore warnings 272 265 } 273 266 }; … … 287 280 static ProcessedMap *createProcessedMap(const Digraph &) 288 281 { 289 throw UninitializedParameter(); 282 LEMON_ASSERT(false, "ProcessedMap is not initialized"); 283 return 0; // ignore warnings 290 284 } 291 285 }; … … 305 299 { 306 300 return new ProcessedMap(g); 301 return 0; // ignore warnings 307 302 } 308 303 }; … … 1041 1036 bool run(Node s, Node t) 1042 1037 { 1043 if (s==INVALID || t==INVALID) throw UninitializedParameter();1044 1038 Bfs<Digraph,TR> alg(*reinterpret_cast<const Digraph*>(Base::_g)); 1045 1039 if (Base::_pred) … … 1324 1318 public: 1325 1319 1326 /// \brief \ref Exception for uninitialized parameters.1327 ///1328 /// This error represents problems in the initialization1329 /// of the parameters of the algorithm.1330 class UninitializedParameter : public lemon::UninitializedParameter {1331 public:1332 virtual const char* what() const throw()1333 {1334 return "lemon::BfsVisit::UninitializedParameter";1335 }1336 };1337 1338 1320 ///The traits class. 1339 1321 typedef _Traits Traits; … … 1390 1372 typedef T ReachedMap; 1391 1373 static ReachedMap *createReachedMap(const Digraph &digraph) { 1392 throw UninitializedParameter(); 1374 LEMON_ASSERT(false, "ReachedMap is not initialized"); 1375 return 0; // ignore warnings 1393 1376 } 1394 1377 }; -
lemon/concepts/heap.h
r220 r290 130 130 /// Otherwise it inserts the given item with the given priority. 131 131 /// 132 /// It may throw an \ref UnderflowPriorityException.133 132 /// \param i The item. 134 133 /// \param p The priority. -
lemon/dfs.h
r288 r292 137 137 class Dfs { 138 138 public: 139 ///\ref Exception for uninitialized parameters.140 141 ///This error represents problems in the initialization of the142 ///parameters of the algorithm.143 class UninitializedParameter : public lemon::UninitializedParameter {144 public:145 virtual const char* what() const throw() {146 return "lemon::Dfs::UninitializedParameter";147 }148 };149 139 150 140 ///The type of the digraph the algorithm runs on. … … 233 223 static PredMap *createPredMap(const Digraph &) 234 224 { 235 throw UninitializedParameter(); 225 LEMON_ASSERT(false, "PredMap is not initialized"); 226 return 0; // ignore warnings 236 227 } 237 228 }; … … 251 242 static DistMap *createDistMap(const Digraph &) 252 243 { 253 throw UninitializedParameter(); 244 LEMON_ASSERT(false, "DistMap is not initialized"); 245 return 0; // ignore warnings 254 246 } 255 247 }; … … 269 261 static ReachedMap *createReachedMap(const Digraph &) 270 262 { 271 throw UninitializedParameter(); 263 LEMON_ASSERT(false, "ReachedMap is not initialized"); 264 return 0; // ignore warnings 272 265 } 273 266 }; … … 287 280 static ProcessedMap *createProcessedMap(const Digraph &) 288 281 { 289 throw UninitializedParameter(); 282 LEMON_ASSERT(false, "ProcessedMap is not initialized"); 283 return 0; // ignore warnings 290 284 } 291 285 }; … … 975 969 bool run(Node s, Node t) 976 970 { 977 if (s==INVALID || t==INVALID) throw UninitializedParameter();978 971 Dfs<Digraph,TR> alg(*reinterpret_cast<const Digraph*>(Base::_g)); 979 972 if (Base::_pred) … … 1271 1264 public: 1272 1265 1273 /// \brief \ref Exception for uninitialized parameters.1274 ///1275 /// This error represents problems in the initialization1276 /// of the parameters of the algorithm.1277 class UninitializedParameter : public lemon::UninitializedParameter {1278 public:1279 virtual const char* what() const throw()1280 {1281 return "lemon::DfsVisit::UninitializedParameter";1282 }1283 };1284 1285 1266 ///The traits class. 1286 1267 typedef _Traits Traits; … … 1337 1318 typedef T ReachedMap; 1338 1319 static ReachedMap *createReachedMap(const Digraph &digraph) { 1339 throw UninitializedParameter(); 1320 LEMON_ASSERT(false, "ReachedMap is not initialized"); 1321 return 0; // ignore warnings 1340 1322 } 1341 1323 }; -
lemon/dijkstra.h
r287 r290 226 226 class Dijkstra { 227 227 public: 228 ///\ref Exception for uninitialized parameters.229 230 ///This error represents problems in the initialization of the231 ///parameters of the algorithm.232 class UninitializedParameter : public lemon::UninitializedParameter {233 public:234 virtual const char* what() const throw() {235 return "lemon::Dijkstra::UninitializedParameter";236 }237 };238 228 239 229 ///The type of the digraph the algorithm runs on. … … 333 323 static PredMap *createPredMap(const Digraph &) 334 324 { 335 throw UninitializedParameter(); 325 LEMON_ASSERT(false, "PredMap is not initialized"); 326 return 0; // ignore warnings 336 327 } 337 328 }; … … 352 343 static DistMap *createDistMap(const Digraph &) 353 344 { 354 throw UninitializedParameter(); 345 LEMON_ASSERT(false, "DistMap is not initialized"); 346 return 0; // ignore warnings 355 347 } 356 348 }; … … 371 363 static ProcessedMap *createProcessedMap(const Digraph &) 372 364 { 373 throw UninitializedParameter(); 365 LEMON_ASSERT(false, "ProcessedMap is not initialized"); 366 return 0; // ignore warnings 374 367 } 375 368 }; … … 409 402 typedef H Heap; 410 403 static HeapCrossRef *createHeapCrossRef(const Digraph &) { 411 throw UninitializedParameter(); 404 LEMON_ASSERT(false, "HeapCrossRef is not initialized"); 405 return 0; // ignore warnings 412 406 } 413 407 static Heap *createHeap(HeapCrossRef &) 414 408 { 415 throw UninitializedParameter(); 409 LEMON_ASSERT(false, "Heap is not initialized"); 410 return 0; // ignore warnings 416 411 } 417 412 }; … … 1159 1154 void run(Node s) 1160 1155 { 1161 if (s==INVALID) throw UninitializedParameter();1162 1156 Dijkstra<Digraph,LengthMap,TR> 1163 1157 dijk(*reinterpret_cast<const Digraph*>(Base::_g), … … 1181 1175 bool run(Node s, Node t) 1182 1176 { 1183 if (s==INVALID || t==INVALID) throw UninitializedParameter();1184 1177 Dijkstra<Digraph,LengthMap,TR> 1185 1178 dijk(*reinterpret_cast<const Digraph*>(Base::_g), -
lemon/error.h
r280 r291 36 36 /// @{ 37 37 38 /// \brief Exception safe wrapper class. 39 /// 40 /// Exception safe wrapper class to implement the members of exceptions. 41 template <typename _Type> 42 class ExceptionMember { 43 public: 44 typedef _Type Type; 45 46 ExceptionMember() throw() { 47 try { 48 ptr.reset(new Type()); 49 } catch (...) {} 50 } 51 52 ExceptionMember(const Type& type) throw() { 53 try { 54 ptr.reset(new Type()); 55 if (ptr.get() == 0) return; 56 *ptr = type; 57 } catch (...) {} 58 } 59 60 ExceptionMember(const ExceptionMember& copy) throw() { 61 try { 62 if (!copy.valid()) return; 63 ptr.reset(new Type()); 64 if (ptr.get() == 0) return; 65 *ptr = copy.get(); 66 } catch (...) {} 67 } 68 69 ExceptionMember& operator=(const ExceptionMember& copy) throw() { 70 if (ptr.get() == 0) return; 71 try { 72 if (!copy.valid()) return; 73 *ptr = copy.get(); 74 } catch (...) {} 75 } 76 77 void set(const Type& type) throw() { 78 if (ptr.get() == 0) return; 79 try { 80 *ptr = type; 81 } catch (...) {} 82 } 83 84 const Type& get() const { 85 return *ptr; 86 } 87 88 bool valid() const throw() { 89 return ptr.get() != 0; 90 } 91 92 private: 93 std::auto_ptr<_Type> ptr; 94 }; 95 96 /// Exception-safe convenient error message builder class. 97 98 /// Helper class which provides a convenient ostream-like (operator << 99 /// based) interface to create a string message. Mostly useful in 100 /// exception classes (therefore the name). 101 class ErrorMessage { 102 protected: 103 ///\e 104 105 mutable std::auto_ptr<std::ostringstream> buf; 106 107 ///\e 108 bool init() throw() { 109 try { 110 buf.reset(new std::ostringstream); 111 } 112 catch(...) { 113 buf.reset(); 114 } 115 return buf.get(); 116 } 117 118 public: 119 120 ///\e 121 ErrorMessage() throw() { init(); } 122 123 ErrorMessage(const ErrorMessage& em) throw() : buf(em.buf) { } 124 125 ///\e 126 ErrorMessage(const char *msg) throw() { 127 init(); 128 *this << msg; 129 } 130 131 ///\e 132 ErrorMessage(const std::string &msg) throw() { 133 init(); 134 *this << msg; 135 } 136 137 ///\e 138 template <typename T> 139 ErrorMessage& operator<<(const T &t) throw() { 140 if( ! buf.get() ) return *this; 141 142 try { 143 *buf << t; 144 } 145 catch(...) { 146 buf.reset(); 147 } 148 return *this; 149 } 150 151 ///\e 152 const char* message() throw() { 153 if( ! buf.get() ) return 0; 154 155 const char* mes = 0; 156 try { 157 mes = buf->str().c_str(); 158 } 159 catch(...) {} 160 return mes; 161 } 162 163 }; 164 165 /// Generic exception class. 166 38 /// \brief Generic exception class. 39 /// 167 40 /// Base class for exceptions used in LEMON. 168 41 /// 169 42 class Exception : public std::exception { 170 43 public: 171 /// \e172 Exception() {}173 /// \e44 ///Constructor 45 Exception() throw() {} 46 ///Virtual destructor 174 47 virtual ~Exception() throw() {} 175 /// \e48 ///A short description of the exception 176 49 virtual const char* what() const throw() { 177 50 return "lemon::Exception"; … … 179 52 }; 180 53 181 /// One of the two main subclasses of \ref Exception. 182 183 /// Logic errors represent problems in the internal logic of a program; 184 /// in theory, these are preventable, and even detectable before the 185 /// program runs (e.g. violations of class invariants). 186 /// 187 /// A typical example for this is \ref UninitializedParameter. 188 class LogicError : public Exception { 54 /// \brief Input-Output error 55 /// 56 /// This exception is thrown when a file operation cannot be 57 /// succeeded. 58 class IoError : public Exception { 59 protected: 60 std::string _message; 61 std::string _file; 62 63 mutable std::string _what; 189 64 public: 65 66 /// Copy constructor 67 IoError(const IoError &error) throw() : Exception() { 68 message(error._message); 69 file(error._file); 70 } 71 72 /// Constructor 73 explicit IoError(const char *message) throw() { 74 IoError::message(message); 75 } 76 77 /// Constructor 78 explicit IoError(const std::string &message) throw() { 79 IoError::message(message); 80 } 81 82 /// Constructor 83 explicit IoError(const char *message, 84 const std::string &file) throw() { 85 IoError::message(message); 86 IoError::file(file); 87 } 88 89 /// Constructor 90 explicit IoError(const std::string &message, 91 const std::string &file) throw() { 92 IoError::message(message); 93 IoError::file(file); 94 } 95 96 /// Virtual destructor 97 virtual ~IoError() throw() {} 98 99 /// Set the error message 100 void message(const char *message) throw() { 101 try { 102 _message = message; 103 } catch (...) {} 104 } 105 106 /// Set the error message 107 void message(const std::string& message) throw() { 108 try { 109 _message = message; 110 } catch (...) {} 111 } 112 113 /// Set the file name 114 void file(const std::string &file) throw() { 115 try { 116 _file = file; 117 } catch (...) {} 118 } 119 120 /// Returns the error message 121 const std::string& message() const throw() { 122 return _message; 123 } 124 125 /// \brief Returns the filename 126 /// 127 /// Returns the filename or an empty string if it was not specified. 128 const std::string& file() const throw() { 129 return _file; 130 } 131 132 /// \brief Returns a short error message 133 /// 134 /// Returns a short error message which contains the message and the 135 /// file name. 190 136 virtual const char* what() const throw() { 191 return "lemon::LogicError"; 192 } 193 }; 194 195 /// \ref Exception for uninitialized parameters. 196 197 /// This error represents problems in the initialization 198 /// of the parameters of the algorithms. 199 class UninitializedParameter : public LogicError { 200 public: 201 virtual const char* what() const throw() { 202 return "lemon::UninitializedParameter"; 203 } 204 }; 205 206 207 /// One of the two main subclasses of \ref Exception. 208 209 /// Runtime errors represent problems outside the scope of a program; 210 /// they cannot be easily predicted and can generally only be caught 211 /// as the program executes. 212 class RuntimeError : public Exception { 213 public: 214 virtual const char* what() const throw() { 215 return "lemon::RuntimeError"; 216 } 217 }; 218 219 ///\e 220 class RangeError : public RuntimeError { 221 public: 222 virtual const char* what() const throw() { 223 return "lemon::RangeError"; 224 } 225 }; 226 227 ///\e 228 class IoError : public RuntimeError { 229 public: 230 virtual const char* what() const throw() { 231 return "lemon::IoError"; 232 } 233 }; 234 235 ///\e 236 class DataFormatError : public IoError { 237 protected: 238 ExceptionMember<std::string> _message; 239 ExceptionMember<std::string> _file; 240 int _line; 241 242 mutable ExceptionMember<std::string> _message_holder; 243 public: 244 245 DataFormatError(const DataFormatError &dfe) : 246 IoError(dfe), _message(dfe._message), _file(dfe._file), 247 _line(dfe._line) {} 248 249 ///\e 250 explicit DataFormatError(const char *the_message) 251 : _message(the_message), _line(0) {} 252 253 ///\e 254 DataFormatError(const std::string &file_name, int line_num, 255 const char *the_message) 256 : _message(the_message), _line(line_num) { file(file_name); } 257 258 ///\e 259 void line(int ln) { _line = ln; } 260 ///\e 261 void message(const std::string& msg) { _message.set(msg); } 262 ///\e 263 void file(const std::string &fl) { _file.set(fl); } 264 265 ///\e 266 int line() const { return _line; } 267 ///\e 268 const char* message() const { 269 if (_message.valid() && !_message.get().empty()) { 270 return _message.get().c_str(); 271 } else { 272 return 0; 273 } 274 } 275 276 /// \brief Returns the filename. 277 /// 278 /// Returns \e null if the filename was not specified. 279 const char* file() const { 280 if (_file.valid() && !_file.get().empty()) { 281 return _file.get().c_str(); 282 } else { 283 return 0; 284 } 285 } 286 287 ///\e 288 virtual const char* what() const throw() { 289 try { 290 std::ostringstream ostr; 291 ostr << "lemon:DataFormatError" << ": "; 292 if (message()) ostr << message(); 293 if( file() || line() != 0 ) { 294 ostr << " ("; 295 if( file() ) ostr << "in file '" << file() << "'"; 296 if( file() && line() != 0 ) ostr << " "; 297 if( line() != 0 ) ostr << "at line " << line(); 298 ostr << ")"; 137 try { 138 _what.clear(); 139 std::ostringstream oss; 140 oss << "lemon:IoError" << ": "; 141 oss << _message; 142 if (!_file.empty()) { 143 oss << " ('" << _file << "')"; 299 144 } 300 _ message_holder.set(ostr.str());145 _what = oss.str(); 301 146 } 302 147 catch (...) {} 303 if( _message_holder.valid()) return _message_holder.get().c_str(); 304 return "lemon:DataFormatError"; 305 } 306 307 virtual ~DataFormatError() throw() {} 148 if (!_what.empty()) return _what.c_str(); 149 else return "lemon:IoError"; 150 } 151 308 152 }; 309 153 310 ///\e 311 class FileOpenError : public IoError { 154 /// \brief Format error 155 /// 156 /// This exception is thrown when an input file has wrong 157 /// format or a data representation is not legal. 158 class FormatError : public Exception { 312 159 protected: 313 ExceptionMember<std::string> _file; 314 315 mutable ExceptionMember<std::string> _message_holder; 160 std::string _message; 161 std::string _file; 162 int _line; 163 164 mutable std::string _what; 316 165 public: 317 166 318 FileOpenError(const FileOpenError &foe) : 319 IoError(foe), _file(foe._file) {} 320 321 ///\e 322 explicit FileOpenError(const std::string& fl) 323 : _file(fl) {} 324 325 326 ///\e 327 void file(const std::string &fl) { _file.set(fl); } 328 329 /// \brief Returns the filename. 330 /// 331 /// Returns \e null if the filename was not specified. 332 const char* file() const { 333 if (_file.valid() && !_file.get().empty()) { 334 return _file.get().c_str(); 335 } else { 336 return 0; 337 } 338 } 339 340 ///\e 167 /// Copy constructor 168 FormatError(const FormatError &error) throw() : Exception() { 169 message(error._message); 170 file(error._file); 171 line(error._line); 172 } 173 174 /// Constructor 175 explicit FormatError(const char *message) throw() { 176 FormatError::message(message); 177 _line = 0; 178 } 179 180 /// Constructor 181 explicit FormatError(const std::string &message) throw() { 182 FormatError::message(message); 183 _line = 0; 184 } 185 186 /// Constructor 187 explicit FormatError(const char *message, 188 const std::string &file, int line = 0) throw() { 189 FormatError::message(message); 190 FormatError::file(file); 191 FormatError::line(line); 192 } 193 194 /// Constructor 195 explicit FormatError(const std::string &message, 196 const std::string &file, int line = 0) throw() { 197 FormatError::message(message); 198 FormatError::file(file); 199 FormatError::line(line); 200 } 201 202 /// Virtual destructor 203 virtual ~FormatError() throw() {} 204 205 /// Set the line number 206 void line(int line) throw() { _line = line; } 207 208 /// Set the error message 209 void message(const char *message) throw() { 210 try { 211 _message = message; 212 } catch (...) {} 213 } 214 215 /// Set the error message 216 void message(const std::string& message) throw() { 217 try { 218 _message = message; 219 } catch (...) {} 220 } 221 222 /// Set the file name 223 void file(const std::string &file) throw() { 224 try { 225 _file = file; 226 } catch (...) {} 227 } 228 229 /// \brief Returns the line number 230 /// 231 /// Returns the line number or zero if it was not specified. 232 int line() const throw() { return _line; } 233 234 /// Returns the error message 235 const std::string& message() const throw() { 236 return _message; 237 } 238 239 /// \brief Returns the filename 240 /// 241 /// Returns the filename or an empty string if it was not specified. 242 const std::string& file() const throw() { 243 return _file; 244 } 245 246 /// \brief Returns a short error message 247 /// 248 /// Returns a short error message which contains the message, the 249 /// file name and the line number. 341 250 virtual const char* what() const throw() { 342 251 try { 343 std::ostringstream ostr; 344 ostr << "lemon::FileOpenError" << ": "; 345 ostr << "Cannot open file - " << file(); 346 _message_holder.set(ostr.str()); 252 _what.clear(); 253 std::ostringstream oss; 254 oss << "lemon:FormatError" << ": "; 255 oss << _message; 256 if (!_file.empty() || _line != 0) { 257 oss << " ("; 258 if (!_file.empty()) oss << "in file '" << _file << "'"; 259 if (!_file.empty() && _line != 0) oss << " "; 260 if (_line != 0) oss << "at line " << _line; 261 oss << ")"; 262 } 263 _what = oss.str(); 347 264 } 348 265 catch (...) {} 349 if ( _message_holder.valid()) return _message_holder.get().c_str();350 return "lemon::FileOpenError";351 } 352 virtual ~FileOpenError() throw() {} 266 if (!_what.empty()) return _what.c_str(); 267 else return "lemon:FormatError"; 268 } 269 353 270 }; 354 271 355 class IoParameterError : public IoError {356 protected:357 ExceptionMember<std::string> _message;358 ExceptionMember<std::string> _file;359 360 mutable ExceptionMember<std::string> _message_holder;361 public:362 363 IoParameterError(const IoParameterError &ile) :364 IoError(ile), _message(ile._message), _file(ile._file) {}365 366 ///\e367 explicit IoParameterError(const char *the_message)368 : _message(the_message) {}369 370 ///\e371 IoParameterError(const char *file_name, const char *the_message)372 : _message(the_message), _file(file_name) {}373 374 ///\e375 void message(const std::string& msg) { _message.set(msg); }376 ///\e377 void file(const std::string &fl) { _file.set(fl); }378 379 ///\e380 const char* message() const {381 if (_message.valid()) {382 return _message.get().c_str();383 } else {384 return 0;385 }386 }387 388 /// \brief Returns the filename.389 ///390 /// Returns \c 0 if the filename was not specified.391 const char* file() const {392 if (_file.valid()) {393 return _file.get().c_str();394 } else {395 return 0;396 }397 }398 399 ///\e400 virtual const char* what() const throw() {401 try {402 std::ostringstream ostr;403 if (message()) ostr << message();404 if (file()) ostr << "(when reading file '" << file() << "')";405 _message_holder.set(ostr.str());406 }407 catch (...) {}408 if( _message_holder.valid() ) return _message_holder.get().c_str();409 return "lemon:IoParameterError";410 }411 virtual ~IoParameterError() throw() {}412 };413 414 272 /// @} 415 273 -
lemon/graph_to_eps.h
r280 r291 41 41 #include<lemon/color.h> 42 42 #include<lemon/bits/bezier.h> 43 #include<lemon/error.h> 43 44 44 45 … … 1167 1168 graphToEps(G &g,const char *file_name) 1168 1169 { 1170 std::ostream* os = new std::ofstream(file_name); 1171 if (!(*os)) { 1172 delete os; 1173 throw IoError("Cannot write file", file_name); 1174 } 1169 1175 return GraphToEps<DefaultGraphToEpsTraits<G> > 1170 (DefaultGraphToEpsTraits<G>(g,* new std::ofstream(file_name),true));1176 (DefaultGraphToEpsTraits<G>(g,*os,true)); 1171 1177 } 1172 1178 … … 1183 1189 graphToEps(G &g,const std::string& file_name) 1184 1190 { 1191 std::ostream* os = new std::ofstream(file_name.c_str()); 1192 if (!(*os)) { 1193 delete os; 1194 throw IoError("Cannot write file", file_name); 1195 } 1185 1196 return GraphToEps<DefaultGraphToEpsTraits<G> > 1186 (DefaultGraphToEpsTraits<G>(g,* new std::ofstream(file_name.c_str()),true));1197 (DefaultGraphToEpsTraits<G>(g,*os,true)); 1187 1198 } 1188 1199 -
lemon/lgf_reader.h
r293 r294 49 49 std::istringstream is(str); 50 50 Value value; 51 is >> value; 51 if (!(is >> value)) { 52 throw FormatError("Cannot read token"); 53 } 52 54 53 55 char c; 54 56 if (is >> std::ws >> c) { 55 throw DataFormatError("Remaining characters in token");57 throw FormatError("Remaining characters in token"); 56 58 } 57 59 return value; … … 167 169 std::ostringstream msg; 168 170 msg << "Item not found: " << str; 169 throw DataFormatError(msg.str().c_str());171 throw FormatError(msg.str()); 170 172 } 171 173 return it->second; … … 185 187 typename Graph::Arc operator()(const std::string& str) { 186 188 if (str.empty() || (str[0] != '+' && str[0] != '-')) { 187 throw DataFormatError("Item must start with '+' or '-'");189 throw FormatError("Item must start with '+' or '-'"); 188 190 } 189 191 typename std::map<std::string, typename Graph::Edge> 190 192 ::const_iterator it = _map.find(str.substr(1)); 191 193 if (it == _map.end()) { 192 throw DataFormatError("Item not found");194 throw FormatError("Item not found"); 193 195 } 194 196 return _graph.direct(it->second, str[0] == '+'); … … 236 238 char c; 237 239 if (!is.get(c)) 238 throw DataFormatError("Escape format error");240 throw FormatError("Escape format error"); 239 241 240 242 switch (c) { … … 265 267 int code; 266 268 if (!is.get(c) || !isHex(c)) 267 throw DataFormatError("Escape format error");269 throw FormatError("Escape format error"); 268 270 else if (code = valueHex(c), !is.get(c) || !isHex(c)) is.putback(c); 269 271 else code = code * 16 + valueHex(c); … … 274 276 int code; 275 277 if (!isOct(c)) 276 throw DataFormatError("Escape format error");278 throw FormatError("Escape format error"); 277 279 else if (code = valueOct(c), !is.get(c) || !isOct(c)) 278 280 is.putback(c); … … 301 303 } 302 304 if (!is) 303 throw DataFormatError("Quoted format error");305 throw FormatError("Quoted format error"); 304 306 } else { 305 307 is.putback(c); … … 462 464 std::istream* _is; 463 465 bool local_is; 466 std::string _filename; 464 467 465 468 Digraph& _digraph; … … 511 514 /// file. 512 515 DigraphReader(Digraph& digraph, const std::string& fn) 513 : _is(new std::ifstream(fn.c_str())), local_is(true), _digraph(digraph), 516 : _is(new std::ifstream(fn.c_str())), local_is(true), 517 _filename(fn), _digraph(digraph), 514 518 _use_nodes(false), _use_arcs(false), 515 _skip_nodes(false), _skip_arcs(false) {} 519 _skip_nodes(false), _skip_arcs(false) { 520 if (!(*_is)) throw IoError("Cannot open file", fn); 521 } 516 522 517 523 /// \brief Constructor … … 520 526 /// file. 521 527 DigraphReader(Digraph& digraph, const char* fn) 522 : _is(new std::ifstream(fn)), local_is(true), _digraph(digraph), 528 : _is(new std::ifstream(fn)), local_is(true), 529 _filename(fn), _digraph(digraph), 523 530 _use_nodes(false), _use_arcs(false), 524 _skip_nodes(false), _skip_arcs(false) {} 531 _skip_nodes(false), _skip_arcs(false) { 532 if (!(*_is)) throw IoError("Cannot open file", fn); 533 } 525 534 526 535 /// \brief Destructor … … 847 856 if (readSuccess() && line) line.putback(c); 848 857 if (!_node_maps.empty()) 849 throw DataFormatError("Cannot find map names");858 throw FormatError("Cannot find map names"); 850 859 return; 851 860 } … … 861 870 std::ostringstream msg; 862 871 msg << "Multiple occurence of node map: " << map; 863 throw DataFormatError(msg.str().c_str());872 throw FormatError(msg.str()); 864 873 } 865 874 maps.insert(std::make_pair(map, index)); … … 872 881 if (jt == maps.end()) { 873 882 std::ostringstream msg; 874 msg << "Map not found in file: " << _node_maps[i].first;875 throw DataFormatError(msg.str().c_str());883 msg << "Map not found: " << _node_maps[i].first; 884 throw FormatError(msg.str()); 876 885 } 877 886 map_index[i] = jt->second; … … 897 906 std::ostringstream msg; 898 907 msg << "Column not found (" << i + 1 << ")"; 899 throw DataFormatError(msg.str().c_str());908 throw FormatError(msg.str()); 900 909 } 901 910 } 902 911 if (line >> std::ws >> c) 903 throw DataFormatError("Extra character onthe end of line");912 throw FormatError("Extra character at the end of line"); 904 913 905 914 Node n; … … 910 919 } else { 911 920 if (label_index == -1) 912 throw DataFormatError("Label map not found in file");921 throw FormatError("Label map not found"); 913 922 typename std::map<std::string, Node>::iterator it = 914 923 _node_index.find(tokens[label_index]); … … 916 925 std::ostringstream msg; 917 926 msg << "Node with label not found: " << tokens[label_index]; 918 throw DataFormatError(msg.str().c_str());927 throw FormatError(msg.str()); 919 928 } 920 929 n = it->second; … … 940 949 if (readSuccess() && line) line.putback(c); 941 950 if (!_arc_maps.empty()) 942 throw DataFormatError("Cannot find map names");951 throw FormatError("Cannot find map names"); 943 952 return; 944 953 } … … 954 963 std::ostringstream msg; 955 964 msg << "Multiple occurence of arc map: " << map; 956 throw DataFormatError(msg.str().c_str());965 throw FormatError(msg.str()); 957 966 } 958 967 maps.insert(std::make_pair(map, index)); … … 965 974 if (jt == maps.end()) { 966 975 std::ostringstream msg; 967 msg << "Map not found in file: " << _arc_maps[i].first;968 throw DataFormatError(msg.str().c_str());976 msg << "Map not found: " << _arc_maps[i].first; 977 throw FormatError(msg.str()); 969 978 } 970 979 map_index[i] = jt->second; … … 989 998 990 999 if (!_reader_bits::readToken(line, source_token)) 991 throw DataFormatError("Source not found");1000 throw FormatError("Source not found"); 992 1001 993 1002 if (!_reader_bits::readToken(line, target_token)) 994 throw DataFormatError("Target not found");1003 throw FormatError("Target not found"); 995 1004 996 1005 std::vector<std::string> tokens(map_num); … … 999 1008 std::ostringstream msg; 1000 1009 msg << "Column not found (" << i + 1 << ")"; 1001 throw DataFormatError(msg.str().c_str());1010 throw FormatError(msg.str()); 1002 1011 } 1003 1012 } 1004 1013 if (line >> std::ws >> c) 1005 throw DataFormatError("Extra character onthe end of line");1014 throw FormatError("Extra character at the end of line"); 1006 1015 1007 1016 Arc a; … … 1014 1023 std::ostringstream msg; 1015 1024 msg << "Item not found: " << source_token; 1016 throw DataFormatError(msg.str().c_str());1025 throw FormatError(msg.str()); 1017 1026 } 1018 1027 Node source = it->second; … … 1022 1031 std::ostringstream msg; 1023 1032 msg << "Item not found: " << target_token; 1024 throw DataFormatError(msg.str().c_str());1033 throw FormatError(msg.str()); 1025 1034 } 1026 1035 Node target = it->second; … … 1031 1040 } else { 1032 1041 if (label_index == -1) 1033 throw DataFormatError("Label map not found in file");1042 throw FormatError("Label map not found"); 1034 1043 typename std::map<std::string, Arc>::iterator it = 1035 1044 _arc_index.find(tokens[label_index]); … … 1037 1046 std::ostringstream msg; 1038 1047 msg << "Arc with label not found: " << tokens[label_index]; 1039 throw DataFormatError(msg.str().c_str());1048 throw FormatError(msg.str()); 1040 1049 } 1041 1050 a = it->second; … … 1062 1071 std::string attr, token; 1063 1072 if (!_reader_bits::readToken(line, attr)) 1064 throw DataFormatError("Attribute name not found");1073 throw FormatError("Attribute name not found"); 1065 1074 if (!_reader_bits::readToken(line, token)) 1066 throw DataFormatError("Attribute value not found");1075 throw FormatError("Attribute value not found"); 1067 1076 if (line >> c) 1068 throw DataFormatError("Extra character onthe end of line");1077 throw FormatError("Extra character at the end of line"); 1069 1078 1070 1079 { … … 1072 1081 if (it != read_attr.end()) { 1073 1082 std::ostringstream msg; 1074 msg << "Multiple occurence of attribute " << attr;1075 throw DataFormatError(msg.str().c_str());1083 msg << "Multiple occurence of attribute: " << attr; 1084 throw FormatError(msg.str()); 1076 1085 } 1077 1086 read_attr.insert(attr); … … 1094 1103 if (read_attr.find(it->first) == read_attr.end()) { 1095 1104 std::ostringstream msg; 1096 msg << "Attribute not found in file: " << it->first;1097 throw DataFormatError(msg.str().c_str());1105 msg << "Attribute not found: " << it->first; 1106 throw FormatError(msg.str()); 1098 1107 } 1099 1108 } … … 1110 1119 void run() { 1111 1120 LEMON_ASSERT(_is != 0, "This reader assigned to an other reader"); 1112 if (!*_is) {1113 throw DataFormatError("Cannot find file");1114 }1115 1121 1116 1122 bool nodes_done = _skip_nodes; … … 1131 1137 1132 1138 if (line >> c) 1133 throw DataFormatError("Extra character onthe end of line");1139 throw FormatError("Extra character at the end of line"); 1134 1140 1135 1141 if (section == "nodes" && !nodes_done) { … … 1153 1159 skipSection(); 1154 1160 } 1155 } catch ( DataFormatError& error) {1161 } catch (FormatError& error) { 1156 1162 error.line(line_num); 1163 error.file(_filename); 1157 1164 throw; 1158 1165 } … … 1160 1167 1161 1168 if (!nodes_done) { 1162 throw DataFormatError("Section @nodes not found");1169 throw FormatError("Section @nodes not found"); 1163 1170 } 1164 1171 1165 1172 if (!arcs_done) { 1166 throw DataFormatError("Section @arcs not found");1173 throw FormatError("Section @arcs not found"); 1167 1174 } 1168 1175 1169 1176 if (!attributes_done && !_attributes.empty()) { 1170 throw DataFormatError("Section @attributes not found");1177 throw FormatError("Section @attributes not found"); 1171 1178 } 1172 1179 … … 1248 1255 std::istream* _is; 1249 1256 bool local_is; 1257 std::string _filename; 1250 1258 1251 1259 Graph& _graph; … … 1297 1305 /// file. 1298 1306 GraphReader(Graph& graph, const std::string& fn) 1299 : _is(new std::ifstream(fn.c_str())), local_is(true), _graph(graph), 1307 : _is(new std::ifstream(fn.c_str())), local_is(true), 1308 _filename(fn), _graph(graph), 1300 1309 _use_nodes(false), _use_edges(false), 1301 _skip_nodes(false), _skip_edges(false) {} 1310 _skip_nodes(false), _skip_edges(false) { 1311 if (!(*_is)) throw IoError("Cannot open file", fn); 1312 } 1302 1313 1303 1314 /// \brief Constructor … … 1306 1317 /// file. 1307 1318 GraphReader(Graph& graph, const char* fn) 1308 : _is(new std::ifstream(fn)), local_is(true), _graph(graph), 1319 : _is(new std::ifstream(fn)), local_is(true), 1320 _filename(fn), _graph(graph), 1309 1321 _use_nodes(false), _use_edges(false), 1310 _skip_nodes(false), _skip_edges(false) {} 1322 _skip_nodes(false), _skip_edges(false) { 1323 if (!(*_is)) throw IoError("Cannot open file", fn); 1324 } 1311 1325 1312 1326 /// \brief Destructor … … 1677 1691 if (readSuccess() && line) line.putback(c); 1678 1692 if (!_node_maps.empty()) 1679 throw DataFormatError("Cannot find map names");1693 throw FormatError("Cannot find map names"); 1680 1694 return; 1681 1695 } … … 1691 1705 std::ostringstream msg; 1692 1706 msg << "Multiple occurence of node map: " << map; 1693 throw DataFormatError(msg.str().c_str());1707 throw FormatError(msg.str()); 1694 1708 } 1695 1709 maps.insert(std::make_pair(map, index)); … … 1702 1716 if (jt == maps.end()) { 1703 1717 std::ostringstream msg; 1704 msg << "Map not found in file: " << _node_maps[i].first;1705 throw DataFormatError(msg.str().c_str());1718 msg << "Map not found: " << _node_maps[i].first; 1719 throw FormatError(msg.str()); 1706 1720 } 1707 1721 map_index[i] = jt->second; … … 1727 1741 std::ostringstream msg; 1728 1742 msg << "Column not found (" << i + 1 << ")"; 1729 throw DataFormatError(msg.str().c_str());1743 throw FormatError(msg.str()); 1730 1744 } 1731 1745 } 1732 1746 if (line >> std::ws >> c) 1733 throw DataFormatError("Extra character onthe end of line");1747 throw FormatError("Extra character at the end of line"); 1734 1748 1735 1749 Node n; … … 1740 1754 } else { 1741 1755 if (label_index == -1) 1742 throw DataFormatError("Label map not found in file");1756 throw FormatError("Label map not found"); 1743 1757 typename std::map<std::string, Node>::iterator it = 1744 1758 _node_index.find(tokens[label_index]); … … 1746 1760 std::ostringstream msg; 1747 1761 msg << "Node with label not found: " << tokens[label_index]; 1748 throw DataFormatError(msg.str().c_str());1762 throw FormatError(msg.str()); 1749 1763 } 1750 1764 n = it->second; … … 1770 1784 if (readSuccess() && line) line.putback(c); 1771 1785 if (!_edge_maps.empty()) 1772 throw DataFormatError("Cannot find map names");1786 throw FormatError("Cannot find map names"); 1773 1787 return; 1774 1788 } … … 1784 1798 std::ostringstream msg; 1785 1799 msg << "Multiple occurence of edge map: " << map; 1786 throw DataFormatError(msg.str().c_str());1800 throw FormatError(msg.str()); 1787 1801 } 1788 1802 maps.insert(std::make_pair(map, index)); … … 1795 1809 if (jt == maps.end()) { 1796 1810 std::ostringstream msg; 1797 msg << "Map not found in file: " << _edge_maps[i].first;1798 throw DataFormatError(msg.str().c_str());1811 msg << "Map not found: " << _edge_maps[i].first; 1812 throw FormatError(msg.str()); 1799 1813 } 1800 1814 map_index[i] = jt->second; … … 1819 1833 1820 1834 if (!_reader_bits::readToken(line, source_token)) 1821 throw DataFormatError("Node u not found");1835 throw FormatError("Node u not found"); 1822 1836 1823 1837 if (!_reader_bits::readToken(line, target_token)) 1824 throw DataFormatError("Node v not found");1838 throw FormatError("Node v not found"); 1825 1839 1826 1840 std::vector<std::string> tokens(map_num); … … 1829 1843 std::ostringstream msg; 1830 1844 msg << "Column not found (" << i + 1 << ")"; 1831 throw DataFormatError(msg.str().c_str());1845 throw FormatError(msg.str()); 1832 1846 } 1833 1847 } 1834 1848 if (line >> std::ws >> c) 1835 throw DataFormatError("Extra character onthe end of line");1849 throw FormatError("Extra character at the end of line"); 1836 1850 1837 1851 Edge e; … … 1844 1858 std::ostringstream msg; 1845 1859 msg << "Item not found: " << source_token; 1846 throw DataFormatError(msg.str().c_str());1860 throw FormatError(msg.str()); 1847 1861 } 1848 1862 Node source = it->second; … … 1852 1866 std::ostringstream msg; 1853 1867 msg << "Item not found: " << target_token; 1854 throw DataFormatError(msg.str().c_str());1868 throw FormatError(msg.str()); 1855 1869 } 1856 1870 Node target = it->second; … … 1861 1875 } else { 1862 1876 if (label_index == -1) 1863 throw DataFormatError("Label map not found in file");1877 throw FormatError("Label map not found"); 1864 1878 typename std::map<std::string, Edge>::iterator it = 1865 1879 _edge_index.find(tokens[label_index]); … … 1867 1881 std::ostringstream msg; 1868 1882 msg << "Edge with label not found: " << tokens[label_index]; 1869 throw DataFormatError(msg.str().c_str());1883 throw FormatError(msg.str()); 1870 1884 } 1871 1885 e = it->second; … … 1892 1906 std::string attr, token; 1893 1907 if (!_reader_bits::readToken(line, attr)) 1894 throw DataFormatError("Attribute name not found");1908 throw FormatError("Attribute name not found"); 1895 1909 if (!_reader_bits::readToken(line, token)) 1896 throw DataFormatError("Attribute value not found");1910 throw FormatError("Attribute value not found"); 1897 1911 if (line >> c) 1898 throw DataFormatError("Extra character onthe end of line");1912 throw FormatError("Extra character at the end of line"); 1899 1913 1900 1914 { … … 1902 1916 if (it != read_attr.end()) { 1903 1917 std::ostringstream msg; 1904 msg << "Multiple occurence of attribute " << attr;1905 throw DataFormatError(msg.str().c_str());1918 msg << "Multiple occurence of attribute: " << attr; 1919 throw FormatError(msg.str()); 1906 1920 } 1907 1921 read_attr.insert(attr); … … 1924 1938 if (read_attr.find(it->first) == read_attr.end()) { 1925 1939 std::ostringstream msg; 1926 msg << "Attribute not found in file: " << it->first;1927 throw DataFormatError(msg.str().c_str());1940 msg << "Attribute not found: " << it->first; 1941 throw FormatError(msg.str()); 1928 1942 } 1929 1943 } … … 1959 1973 1960 1974 if (line >> c) 1961 throw DataFormatError("Extra character onthe end of line");1975 throw FormatError("Extra character at the end of line"); 1962 1976 1963 1977 if (section == "nodes" && !nodes_done) { … … 1981 1995 skipSection(); 1982 1996 } 1983 } catch ( DataFormatError& error) {1997 } catch (FormatError& error) { 1984 1998 error.line(line_num); 1999 error.file(_filename); 1985 2000 throw; 1986 2001 } … … 1988 2003 1989 2004 if (!nodes_done) { 1990 throw DataFormatError("Section @nodes not found");2005 throw FormatError("Section @nodes not found"); 1991 2006 } 1992 2007 1993 2008 if (!edges_done) { 1994 throw DataFormatError("Section @edges not found");2009 throw FormatError("Section @edges not found"); 1995 2010 } 1996 2011 1997 2012 if (!attributes_done && !_attributes.empty()) { 1998 throw DataFormatError("Section @attributes not found");2013 throw FormatError("Section @attributes not found"); 1999 2014 } 2000 2015 … … 2057 2072 std::istream* _is; 2058 2073 bool local_is; 2074 std::string _filename; 2059 2075 2060 2076 typedef std::map<std::string, _reader_bits::Section*> Sections; … … 2077 2093 /// Construct a section reader, which reads from the given file. 2078 2094 SectionReader(const std::string& fn) 2079 : _is(new std::ifstream(fn.c_str())), local_is(true) {} 2095 : _is(new std::ifstream(fn.c_str())), local_is(true), 2096 _filename(fn) { 2097 if (!(*_is)) throw IoError("Cannot open file", fn); 2098 } 2080 2099 2081 2100 /// \brief Constructor … … 2083 2102 /// Construct a section reader, which reads from the given file. 2084 2103 SectionReader(const char* fn) 2085 : _is(new std::ifstream(fn)), local_is(true) {} 2104 : _is(new std::ifstream(fn)), local_is(true), 2105 _filename(fn) { 2106 if (!(*_is)) throw IoError("Cannot open file", fn); 2107 } 2086 2108 2087 2109 /// \brief Destructor … … 2239 2261 2240 2262 if (line >> c) 2241 throw DataFormatError("Extra character onthe end of line");2263 throw FormatError("Extra character at the end of line"); 2242 2264 2243 2265 if (extra_sections.find(section) != extra_sections.end()) { 2244 2266 std::ostringstream msg; 2245 msg << "Multiple occurence of section " << section;2246 throw DataFormatError(msg.str().c_str());2267 msg << "Multiple occurence of section: " << section; 2268 throw FormatError(msg.str()); 2247 2269 } 2248 2270 Sections::iterator it = _sections.find(section); … … 2253 2275 readLine(); 2254 2276 skipSection(); 2255 } catch ( DataFormatError& error) {2277 } catch (FormatError& error) { 2256 2278 error.line(line_num); 2279 error.file(_filename); 2257 2280 throw; 2258 2281 } … … 2263 2286 std::ostringstream os; 2264 2287 os << "Cannot find section: " << it->first; 2265 throw DataFormatError(os.str().c_str());2288 throw FormatError(os.str()); 2266 2289 } 2267 2290 } … … 2363 2386 /// file. 2364 2387 LgfContents(const std::string& fn) 2365 : _is(new std::ifstream(fn.c_str())), local_is(true) {} 2388 : _is(new std::ifstream(fn.c_str())), local_is(true) { 2389 if (!(*_is)) throw IoError("Cannot open file", fn); 2390 } 2366 2391 2367 2392 /// \brief Constructor … … 2370 2395 /// file. 2371 2396 LgfContents(const char* fn) 2372 : _is(new std::ifstream(fn)), local_is(true) {} 2397 : _is(new std::ifstream(fn)), local_is(true) { 2398 if (!(*_is)) throw IoError("Cannot open file", fn); 2399 } 2373 2400 2374 2401 /// \brief Destructor -
lemon/lgf_writer.h
r293 r294 56 56 template <typename T> 57 57 bool operator<(const T&, const T&) { 58 throw DataFormatError("Label map is not comparable");58 throw FormatError("Label map is not comparable"); 59 59 } 60 60 … … 204 204 _map.find(str); 205 205 if (it == _map.end()) { 206 throw DataFormatError("Item not found");206 throw FormatError("Item not found"); 207 207 } 208 208 return it->second; … … 224 224 ::const_iterator it = _map.find(val); 225 225 if (it == _map.end()) { 226 throw DataFormatError("Item not found");226 throw FormatError("Item not found"); 227 227 } 228 228 return (_graph.direction(val) ? '+' : '-') + it->second; … … 463 463 DigraphWriter(const Digraph& digraph, const std::string& fn) 464 464 : _os(new std::ofstream(fn.c_str())), local_os(true), _digraph(digraph), 465 _skip_nodes(false), _skip_arcs(false) {} 465 _skip_nodes(false), _skip_arcs(false) { 466 if (!(*_os)) throw IoError("Cannot write file", fn); 467 } 466 468 467 469 /// \brief Constructor … … 471 473 DigraphWriter(const Digraph& digraph, const char* fn) 472 474 : _os(new std::ofstream(fn)), local_os(true), _digraph(digraph), 473 _skip_nodes(false), _skip_arcs(false) {} 475 _skip_nodes(false), _skip_arcs(false) { 476 if (!(*_os)) throw IoError("Cannot write file", fn); 477 } 474 478 475 479 /// \brief Destructor … … 1020 1024 GraphWriter(const Graph& graph, const std::string& fn) 1021 1025 : _os(new std::ofstream(fn.c_str())), local_os(true), _graph(graph), 1022 _skip_nodes(false), _skip_edges(false) {} 1026 _skip_nodes(false), _skip_edges(false) { 1027 if (!(*_os)) throw IoError("Cannot write file", fn); 1028 } 1023 1029 1024 1030 /// \brief Constructor … … 1028 1034 GraphWriter(const Graph& graph, const char* fn) 1029 1035 : _os(new std::ofstream(fn)), local_os(true), _graph(graph), 1030 _skip_nodes(false), _skip_edges(false) {} 1036 _skip_nodes(false), _skip_edges(false) { 1037 if (!(*_os)) throw IoError("Cannot write file", fn); 1038 } 1031 1039 1032 1040 /// \brief Destructor … … 1579 1587 /// Construct a section writer, which writes into the given file. 1580 1588 SectionWriter(const std::string& fn) 1581 : _os(new std::ofstream(fn.c_str())), local_os(true) {} 1589 : _os(new std::ofstream(fn.c_str())), local_os(true) { 1590 if (!(*_os)) throw IoError("Cannot write file", fn); 1591 } 1582 1592 1583 1593 /// \brief Constructor … … 1585 1595 /// Construct a section writer, which writes into the given file. 1586 1596 SectionWriter(const char* fn) 1587 : _os(new std::ofstream(fn)), local_os(true) {} 1597 : _os(new std::ofstream(fn)), local_os(true) { 1598 if (!(*_os)) throw IoError("Cannot write file", fn); 1599 } 1588 1600 1589 1601 /// \brief Destructor
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