Class passed to an error. More...

#include <opencv2/core.hpp>

Inheritance diagram for cv::Exception:

Collaboration diagram for cv::Exception:

Public Member Functions
	Exception ()
	Default constructor. More...

	Exception (int _code, const String &_err, const String &_func, const String &_file, int _line)
	Full constructor. More...

virtual	~Exception () throw ()

void	formatMessage ()

virtual const char *	what () const CV_OVERRIDE throw ()

Public Attributes
int	code
	error code More...

String	err
	error description More...

String	file
	source file name where the error has occurred More...

String	func
	function name. Available only when the compiler supports getting it More...

int	line
	line number in the source file where the error has occurred More...

String	msg
	the formatted error message More...

Detailed Description

Class passed to an error.

This class encapsulates all or almost all necessary information about the error happened in the program. The exception is usually constructed and thrown implicitly via CV_Error and CV_Error_ macros.

See also: error

Examples:: samples/cpp/pca.cpp, and samples/tapi/hog.cpp.

Constructor & Destructor Documentation

◆ Exception() [1/2]

cv::Exception::Exception ( )

Default constructor.

◆ Exception() [2/2]

cv::Exception::Exception	(	int	_code,
		const String &	_err,
		const String &	_func,
		const String &	_file,
		int	_line
	)

Full constructor.

Normally the constructor is not called explicitly. Instead, the macros CV_Error(), CV_Error_() and CV_Assert() are used.

◆ ~Exception()

virtual cv::Exception::~Exception	(	)
throw	(
	)

virtual

Member Function Documentation

◆ formatMessage()

void cv::Exception::formatMessage ( )

◆ what()

virtual const char* cv::Exception::what	(	)	const
throw	(
	)

virtual

Returns: the error description and the context as a text string.

Examples:: samples/tapi/hog.cpp.

Member Data Documentation

◆ code

int cv::Exception::code

error code

See also: CVStatus

◆ err

String cv::Exception::err

error description

◆ file

String cv::Exception::file

source file name where the error has occurred

◆ func

String cv::Exception::func

function name. Available only when the compiler supports getting it

◆ line

int cv::Exception::line

line number in the source file where the error has occurred

◆ msg

String cv::Exception::msg

the formatted error message

Examples:: samples/cpp/pca.cpp.

The documentation for this class was generated from the following file:

opencv2/core.hpp

Public Member Functions

Public Attributes