Classes | |
class | Dune::Exception |
Base class for Dune-Exceptions. More... | |
struct | Dune::ExceptionHook |
Base class to add a hook to the Dune::Exception. More... | |
class | Dune::IOError |
Default exception class for I/O errors. More... | |
class | Dune::MathError |
Default exception class for mathematical errors. More... | |
class | Dune::RangeError |
Default exception class for range errors. More... | |
class | Dune::NotImplemented |
Default exception for dummy implementations. More... | |
class | Dune::SystemError |
Default exception class for OS errors. More... | |
class | Dune::OutOfMemoryError |
Default exception if memory allocation fails. More... | |
class | Dune::InvalidStateException |
Default exception if a function was called while the object is not in a valid state for that function. More... | |
class | Dune::ParallelError |
Default exception if an error in the parallel communication of the programm occurred. More... | |
Files | |
file | exceptions.hh |
A few common exception classes. | |
Defines | |
#define | DUNE_THROW(E, m) |
Functions | |
void | Dune::Exception::message (const std::string &msg) |
store string in internal message buffer | |
virtual const char * | Dune::Exception::what () const noexcept |
output internal message buffer | |
static void | Dune::Exception::registerHook (ExceptionHook *hook) |
add a functor which is called before a Dune::Exception is emitted (see Dune::ExceptionHook) | |
static void | Dune::Exception::clearHook () |
remove all hooks | |
virtual void | Dune::ExceptionHook::operator() ()=0 |
std::ostream & | Dune::operator<< (std::ostream &stream, const Exception &e) |
The Dune-exceptions are designed to allow a simple derivation of subclasses and to accept a text written in the '<<' syntax.
Example of usage:
#include <dune/common/exceptions.hh> ... class FileNotFoundError : public Dune::IOError {}; ... void fileopen (std::string name) { std::ifstream file; file.open(name.c_str()); if (file == 0) DUNE_THROW(FileNotFoundError, "File " << name << " not found!"); ... file.close(); } ... int main () { try { ... } catch (Dune::IOError &e) { std::cerr << "I/O error: " << e << std::endl; return 1; } catch (Dune::Exception &e) { std::cerr << "Generic Dune error: " << e << std::endl; return 2; } }
#define DUNE_THROW | ( | E, | |||
m | ) |
do { E th__ex; std::ostringstream th__out; \ th__out << THROWSPEC(E) << m; th__ex.message(th__out.str()); throw th__ex; \ } while (0)
Macro to throw an exception
#include <dune/common/exceptions.hh>
E | exception class derived from Dune::Exception | |
m | reason for this exception in ostream-notation |
Example:
if (filehandle == 0) DUNE_THROW(FileError, "Could not open " << filename << " for reading!");
DUNE_THROW automatically adds information about the exception thrown to the text.
void Dune::Exception::clearHook | ( | ) | [static, inherited] |
remove all hooks
void Dune::Exception::message | ( | const std::string & | msg | ) | [inherited] |
store string in internal message buffer
virtual void Dune::ExceptionHook::operator() | ( | ) | [pure virtual, inherited] |
std::ostream& Dune::operator<< | ( | std::ostream & | stream, | |
const Exception & | e | |||
) | [inline] |
void Dune::Exception::registerHook | ( | ExceptionHook * | hook | ) | [static, inherited] |
add a functor which is called before a Dune::Exception is emitted (see Dune::ExceptionHook)
const char * Dune::Exception::what | ( | ) | const [virtual, inherited] |
output internal message buffer