MEMath Class Reference

Exception, Error during mathematical operation. More...

Inheritance diagram for MEMath:

Public Member Functions
	MEMath ()
	Constructor.
	MEMath (const MEMath &)
	Copy constructor.
virtual	~MEMath ()
	Destructor.
virtual MException *	NewClone () const
	Clone the exception, so the new exception has the same final type. More...
virtual M_NORETURN_FUNC void	Rethrow ()
	Rethrows this exception. More...
Public Member Functions inherited from MException
	MException ()
	Object constructor. More...
	MException (const MStdString &message, MErrorEnum::Type code=MErrorEnum::ClientApplicationError, KindType kind=MException::ErrorUser)
	Object constructor with code, kind and variable number of parameters. More...
	MException (const MException &ex)
	Object copy constructor. More...
virtual	~MException ()
	Object destructor.
void	InitAll (MException::KindType kind, MErrorEnum::Type code, const MStdString &message)
	Initialize all exception fields with the exact given data.
MException &	operator= (const MException &ex)
	Assignment operator. More...
virtual MStdString	AsSimplifiedString () const
	Return a possibly simplified string that specifies information about exception. More...
virtual MStdString	AsString () const
	Return the string that specifies extended information about exception. More...
MStdString	GetMessageString () const
	Returns the message that is stored in this exception object. More...
void	SetMessageString (const MStdString &msg)
	Sets the new message to exception. More...
MStdString	GetKindAsString () const
	Return a string that represents the exception error kind. More...
MStdString	GetFileName () const
	Get the file name where the error took place, if this information is available.
unsigned	GetFileLineNumber () const
	Get the line number within file where the error took place.
void	UpdateFileNameAndLineNumber (MFileNameAndLineNumber fl)
	Set file name and line number where the compile error took place, if the exception does not have this information already.
void	UpdateFileAndLine (const MStdString &file, unsigned line)
	If not set already, set file name and line number associated with this exception. More...
void	AddFileAndLineToStack (const MStdString &file, unsigned line)
	Add file name and line number context associated with this exception into stack. More...
void	AddFileNameAndLineNumberToStack (MFileNameAndLineNumber fl)
	Add file name and line number context associated with this exception into stack. More...
const MFileNameAndLineNumber::VectorType &	GetStack () const
	Get the stack of file names and line numbers.
MStdStringVector	GetCallStack () const
	Get the stack of file names and line numbers as collection of strings.
void	Append (const MStdString &)
	Append the specified string to the end of the exception string. More...
void	Prepend (const MStdString &)
	Prepend the specified string before the beginning of the exception string. More...
MErrorEnum::Type	GetCode () const
void	SetCode (MErrorEnum::Type code)
KindType	GetKind () const
void	SetKind (KindType kind)
void	Init (KindType kind, MErrorEnum::Type code, MConstLocalChars str,...)
	Initialize the exception with the given message code and kind from which the message string is fetched from the resource. More...
void	Init (KindType kind, MErrorEnum::Type code, const char *str,...)
	Initialize the exception with the given message code and kind from which the message string is fetched from the resource. More...
void	Init (MErrorEnum::Type code, MConstLocalChars str,...)
	Initialize the exception with the given message code and kind from which the message string is fetched from the resource. More...
void	Init (MErrorEnum::Type code, const char *str,...)
	Initialize the exception with the given message code and kind from which the message string is fetched from the resource. More...
void	InitVA (KindType kind, MErrorEnum::Type code, MConstLocalChars str, va_list va)
	Initialize the exception with the given message code from the VA list argument. More...
void	InitVA (KindType kind, MErrorEnum::Type code, const char *str, va_list va)
	Initialize the exception with the given message code from the VA list argument. More...
void	InitVA (MErrorEnum::Type code, MConstLocalChars str, va_list va)
	Initialize the exception with the given message code from the VA list argument. More...
void	InitVA (MErrorEnum::Type code, const char *str, va_list va)
	Initialize the exception with the given message code from the VA list argument. More...
MFileNameAndLineNumber	GetFileNameAndLineNumber () const
void	SetFileNameAndLineNumber (MFileNameAndLineNumber fl)
void	AppendToString (MConstLocalChars str,...)
void	AppendToString (const char *str,...)
void	PrependBeforeString (MConstLocalChars str,...)
void	PrependBeforeString (const char *str,...)
Public Member Functions inherited from MObject
virtual	~MObject ()
	Object destructor.
virtual const MClass *	GetClass () const =0
	Get the final class of the object. More...
virtual unsigned	GetEmbeddedSizeof () const
	For embedded object types, return the size of the class. More...
bool	IsEmbeddedObject () const
	Tell if the object is of embedded kind. More...
SHOW_INTERNAL MVariant	Call (const MStdString &name, const MVariant &params)
	Call the object service with parameters, given as variant. More...
MVariant	Call0 (const MStdString &name)
	Call the object service with no parameters. More...
MVariant	Call1 (const MStdString &name, const MVariant &p1)
	Call the object service with one parameter. More...
MVariant	Call2 (const MStdString &name, const MVariant &p1, const MVariant &p2)
	Call the object service with two parameter. More...
MVariant	Call3 (const MStdString &name, const MVariant &p1, const MVariant &p2, const MVariant &p3)
	Call the object service with three parameter. More...
MVariant	Call4 (const MStdString &name, const MVariant &p1, const MVariant &p2, const MVariant &p3, const MVariant &p4)
	Call the object service with four parameter. More...
MVariant	Call5 (const MStdString &name, const MVariant &p1, const MVariant &p2, const MVariant &p3, const MVariant &p4, const MVariant &p5)
	Call the object service with five parameter. More...
MVariant	Call6 (const MStdString &name, const MVariant &p1, const MVariant &p2, const MVariant &p3, const MVariant &p4, const MVariant &p5, const MVariant &p6)
	Call the object service with six parameter. More...
virtual MVariant	CallV (const MStdString &name, const MVariant::VariantVector &params)
	Call the object service with parameters, given as variant vector. More...
virtual bool	IsPropertyPresent (const MStdString &name) const
	Tell if the property with the given name exists.
virtual bool	IsServicePresent (const MStdString &name) const
	Tell if the service with the given name exists.
virtual MVariant	GetProperty (const MStdString &name) const
	Get the property value using name of the property. More...
virtual void	SetProperty (const MStdString &name, const MVariant &value)
	Set the property using name of the property, and value. More...
virtual MStdStringVector	GetAllPropertyNames () const
	Return the list of publicly available properties, persistent or not. More...
virtual MStdStringVector	GetAllPersistentPropertyNames () const
	Return the list of persistent properties. More...
virtual void	SetPersistentPropertiesToDefault ()
	Set the persistent properties of the object to their default values. More...
virtual MVariant	GetPersistentPropertyDefaultValue (const MStdString &name) const
	Get the default value of persistent property with the name given. More...
virtual void	SetPersistentPropertyToDefault (const MStdString &name)
	Set the persistent property with the name given to default value. More...
virtual const char *	GetType () const
	Get the name of the type for the object (could be the same as class name).
virtual void	SetType (const MStdString &)
	Intentionally, it will set the name of the type for the object, but the service will not allow setting the name to anything other than the current name. More...
virtual void	Validate ()
	Validate internal structures of the object. More...

Static Public Member Functions
static void	ClearMathError ()
	Clear the math related error. More...
static void	BeforeDoingMath ()
	Prepare for checking of math function parameters. More...
static void	AfterDoingMath (double result, const char *operationName=NULL)
	Check the result of the execution of math function. More...
static MEMath *	New ()
	Create a new exception of this type, all parameters are clear.
static M_NORETURN_FUNC void	Throw ()
	Helper reflection-enabling Throw service.
Static Public Member Functions inherited from MException
static MException *	New ()
	Create a new exception of this type, all parameters are clear.
static M_NORETURN_FUNC void	ThrowUnknownError ()
	Throws this exception as unknown error. More...
static M_NORETURN_FUNC void	ThrowCannotIndexItem (MConstChars itemName=NULL)
	Throws this exception as error that signifies the item cannot be indexed.
static M_NORETURN_FUNC void	ThrowNotSupportedForThisType ()
	Throws this exception as error that signifies the operation is not supported for such type.
static M_NORETURN_FUNC void	ThrowNoValue ()
	Throws this exception as error that signifies the value is absent.
static M_NORETURN_FUNC void	ThrowNoValue (MFileNameAndLineNumber fl)
	Throws this exception as error that signifies the value given in file and line is absent.
static M_NORETURN_FUNC void	ThrowBadTimeValue (MConstChars str=NULL)
	Throws this exception as error that signifies the time value is bad.
static M_NORETURN_FUNC void	ThrowDivisionByZero ()
	Throws this exception as division by zero.
static M_NORETURN_FUNC void	ThrowCallOutOfSequence ()
	Throws an error that the call is made out of sequence.
static M_NORETURN_FUNC void	ThrowBadFileFormat (const MStdString &fileName)
	Throws file has bad format.
static M_NORETURN_FUNC void	ThrowUnexpectedChar (int ch)
	Throws an exception that complains about an unexpected character. More...
static M_NORETURN_FUNC void	ThrowStringTooLong (int stringLength, int maximumPossibleLength)
	Throws an exception that tells that the string is bigger than the maximum length. More...
static M_NORETURN_FUNC void	ThrowUnsupportedType (int typetag)
	Throws an error that the given variant type is not supported.
static M_NORETURN_FUNC void	Throw (const MStdString &message, MErrorEnum::Type code=MErrorEnum::ClientApplicationError)
	Throw this exception with the user message given as parameter. More...
static MStdString	SimplifyMessageString (const MStdString &message)
	Attempt to simplify the error message string given. More...
static MStdString	GetKindAsStringStatic (KindType kind)
	Return a string that represents the exception error kind using kind as parameter. More...
static MStdString	VisualizeParameter (const MVariant &v)
	Make the given variant suitable for showing in error message. More...
static char *	VisualizeVariantParameter (char *buff, const MVariant &v)
	Make the given variant parameter suitable for showing in error message. More...
static char *	VisualizeStringParameter (char *buff, const MStdString &v)
	Make the given string parameter suitable for showing in error message. More...
static char *	VisualizeCharsParameter (char *buff, const char *v)
	Make the given zero terminated string parameter suitable for showing in error message. More...
static char *	VisualizeCharsParameter (char *buff, const char *v, unsigned len)
	Make the given not zero terminated character parameter suitable for showing in error message. More...
static M_NORETURN_FUNC void	ThrowSyntaxError (MConstChars offendingString)
static M_NORETURN_FUNC void	ThrowSyntaxError (MConstChars offendingString, size_t offendingStringLength)
static M_NORETURN_FUNC void	ThrowUnknownItem (MException::KindType kind, MConstChars name)
static M_NORETURN_FUNC void	ThrowUnknownItem (MConstChars name)
static M_NORETURN_FUNC void	ThrowUnknownItem (MException::KindType kind, const MStdString &name)
static M_NORETURN_FUNC void	ThrowUnknownItem (const MStdString &name)
static M_NORETURN_FUNC void	Throw (MErrorEnum::Type code, MConstLocalChars str,...)
static M_NORETURN_FUNC void	Throw (MErrorEnum::Type code, const char *str,...)
static M_NORETURN_FUNC void	Throw (KindType kind, MErrorEnum::Type code, MConstLocalChars str,...)
static M_NORETURN_FUNC void	Throw (KindType kind, MErrorEnum::Type code, const char *str,...)
Static Public Member Functions inherited from MObject
static const MClass *	GetStaticClass ()
	Get the declared class of this particular object. More...
static bool	IsClassPresent (const MStdString &name)
	Tells if the given class name is available. More...

Additional Inherited Members
Public Types inherited from MException
enum	KindType {   ErrorNone = 0,   ErrorInformation = 1,   ErrorWarning = 2,   Error = 3,   ErrorFatal = 4,   ErrorCommunication = 5,   ErrorSystem = 6,   ErrorSocket = 7,   ErrorConfiguration = 8,   ErrorSecurity = 9,   ErrorMeter = 10,   ErrorSoftware = 15,   ErrorUser = 20 }
	Enumeration that stands for the kind of the exception. More...
enum	{ MaximumVisibleParameterLength = 64 }
Static Public Attributes inherited from MException
static const char	s_itemIsUnknownErrorString []
	Constant string "Item '%s' is unknown", shared through many libraries.
Static Public Attributes inherited from MObject
static const MClass	s_class
	Class of MObject.
Protected Member Functions inherited from MObject
	MObject ()
	Object constructor, protected as the class is abstract.
void	DoSetPersistentPropertiesToDefault (const MClass *staticClass)
	Set the persistent properties to their default values for one object provided the class for that object. More...
Protected Attributes inherited from MException
MErrorEnum::Type	m_code
	Message code for this exception.
KindType	m_kind
	The kind type for this exception.
MStdString	m_message
	Message string that represents this exception.
MFileNameAndLineNumber	m_fileNameAndLineNumber
	File name and line number where the compile error took place. More...
MFileNameAndLineNumber::VectorType	m_stack
	Stack of file names and line numbers.

Detailed Description

Exception, Error during mathematical operation.

These are raised by class MMath for its functions such as Sqrt in case the parameters are wrong.

Member Function Documentation

static void MEMath::AfterDoingMath ( double  result, const char *  operationName = NULL  )

static

Check the result of the execution of math function.

This is where the math error checking is done. Exception MEMath is raised in case the function had bad parameters. Bad parameters condition is when result is NaN and/or when errno is set.

Parameters

result	Result of the operation, NaN will be reported as error.
operationName	Name of the operation which caused the error.

static void MEMath::BeforeDoingMath ( )

inlinestatic

Prepare for checking of math function parameters.

This has to be called before executing any math related operation. Operating system and compiler dependent implementation will clear the flags responsible for math error checking, so the mathematical call can be performed.

See also

ClearMathError - underlying implementation of is call.

static void MEMath::ClearMathError ( )

static

Clear the math related error.

Operating system and compiler dependent implementation will clear the flags responsible for math error checking, so the mathematical call can be performed.

virtual MException* MEMath::NewClone ( ) const

virtual

Clone the exception, so the new exception has the same final type.

Returns

New exception, which is the same as this.

See also

Rethrow() Rethrows the cloned exception with respect to the final exception type.

Reimplemented from MException.

virtual M_NORETURN_FUNC void MEMath::Rethrow ( )

virtual

Rethrows this exception.

This polymorphic call is necessary if a generic exception is caught by its base, and had to be saved for future throwing. Simple "throw *ex" will not work in this case, as it will call the copy constructor of the declared exception, not the final class copy constructor.

See also

NewClone() Clones the exception so the new exception has the same final type.

Reimplemented from MException.