OpenMS
BaseException Class Reference

Exception base class. More...

#include <OpenMS/CONCEPT/Exception.h>

Inheritance diagram for BaseException:
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Collaboration diagram for BaseException:
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Public Member Functions

Constructors and Destructors
 BaseException () noexcept
 Default constructor. More...
 
 BaseException (const char *file, int line, const char *function) noexcept
 Constructor. More...
 
 BaseException (const char *file, int line, const char *function, const std::string &name, const std::string &message) noexcept
 Constructor. More...
 
 BaseException (const BaseException &exception) noexcept
 Copy constructor. More...
 
 ~BaseException () noexcept override
 Destructor. More...
 

Accessors

const char * file_
 The source file the exception was thrown in. More...
 
int line_
 The line number the exception was thrown in. More...
 
const char * function_
 The source file the exception was thrown in. More...
 
std::string name_
 The name of the exception. More...
 
const char * getName () const noexcept
 Returns the name of the exception. More...
 
int getLine () const noexcept
 Returns the line number where it occurred. More...
 
const char * getFile () const noexcept
 Returns the file where it occurred. More...
 
const char * getFunction () const noexcept
 Returns the function where it occurred. More...
 
const char * getMessage () const noexcept
 Returns the message. More...
 

Detailed Description

Exception base class.

This class is intended as a base class for all other exceptions.

Each exception class should define a constructor taking a filename (string), line (int) and function name (string) as first arguments. This information is usually printed in case of an uncaught exception.

To support this feature, each throw directive should look as follows:

throw Exception::Exception(__FILE__, __LINE__, OPENMS_PRETTY_FUNCTION,...);

__FILE__ and __LINE__ are built-in preprocessor macros that hold the desired information.
OPENMS_PRETTY_FUNCTION is replaced by the GNU G++ compiler with the demangled name of the current function. (For other compilers it is defined as "<unknown>" in config.h.)

OpenMS provides its own Exception::GlobalExceptionHandler::terminate() handler. This handler extracts as much information as possible from the exception, prints it to cerr , and finally calls exits the program cleanly (with exit code 1). This can be rather inconvenient for debugging, since you are told where the exception was thrown, but in general you do not know anything about the context. Therefore terminate() can also create a core dump. Using a debugger (e.g. dbx or gdb) you can then create a stack traceback. To create a core dump, you should set the environment variable OPENMS_DUMP_CORE to any (non empty) value.

Constructor & Destructor Documentation

◆ BaseException() [1/4]

BaseException ( )
noexcept

Default constructor.

◆ BaseException() [2/4]

BaseException ( const char *  file,
int  line,
const char *  function 
)
noexcept

Constructor.

◆ BaseException() [3/4]

BaseException ( const char *  file,
int  line,
const char *  function,
const std::string &  name,
const std::string &  message 
)
noexcept

Constructor.

◆ BaseException() [4/4]

BaseException ( const BaseException exception)
noexcept

Copy constructor.

◆ ~BaseException()

~BaseException ( )
overridenoexcept

Destructor.

Member Function Documentation

◆ getFile()

const char* getFile ( ) const
noexcept

Returns the file where it occurred.

Referenced by main().

◆ getFunction()

const char* getFunction ( ) const
noexcept

Returns the function where it occurred.

◆ getLine()

int getLine ( ) const
noexcept

Returns the line number where it occurred.

Referenced by main().

◆ getMessage()

const char* getMessage ( ) const
noexcept

Returns the message.

◆ getName()

const char* getName ( ) const
noexcept

Returns the name of the exception.

Referenced by QApplicationTOPP::notify().

Member Data Documentation

◆ file_

const char* file_
protected

The source file the exception was thrown in.

◆ function_

const char* function_
protected

The source file the exception was thrown in.

◆ line_

int line_
protected

The line number the exception was thrown in.

◆ name_

std::string name_
protected

The name of the exception.