A common result class usable as return value throughout. More...

Public Member Functions
	Result ()
	Construct empty which basically means no error occurred. More...

	Result (bool val)
	Construct from bool. More...

	Result (const ResultInfo< void > &)
	Construct with a_util::result::SUCCESS. More...

template<typename ErrorType >
	Result (const ResultInfo< ErrorType > &error)
	Assign error code to result object. More...

template<typename ErrorType >
	Result (ResultInfo< ErrorType > error, const char error_description, std::int32_t line, const char file, const char *function)
	Construct result object with complete set of error information. More...

	Result (std::int32_t error_code)
	Create result object with just the error code type. More...

	Result (std::int32_t error_code, const char error_description, std::int32_t line, const char file, const char *function)
	Create result object with complete set of error information from just an error code. More...

	Result (const Result &other_result, const char error_description, std::int32_t line, const char file, const char *function)
	Create result object from another result, creating new detailed information. More...

	~Result ()
	Destructor.

	Result (const Result &other)
	Copy constructor. More...

Result &	operator= (const ResultInfo< void > &)
	Assign with a_util::result::SUCCESS. More...

Result &	operator= (Result other)
	Assignment operator. More...

Result &	operator= (bool val)
	Assignment from bool. More...

Result &	operator= (std::int32_t val)
	Assignment from numeric. More...

	Result (Result &&other)
	Move operator. More...

std::int32_t	getErrorCode () const
	Get error code. More...

const char *	getErrorLabel () const
	Get error label as string representation. More...

const char *	getDescription () const
	Get user provided error description. More...

std::int32_t	getLine () const
	Get line in source file where the error was reported. More...

const char *	getFile () const
	Get name of the file the error was reported in. More...

const char *	getFunction () const
	Get name of the function the error was reported in. More...

	operator bool () const noexcept
	Convert result to bool. More...

Private Types
typedef detail::ResultDescription< detail::IErrorDescription >	DescriptionType
	Error description type.

Private Member Functions
	Result (std::int32_t error_code, const char error_description, std::int32_t line, const char file, const char function, const char label)
	Construct result object with complete set of error information. More...

Static Private Member Functions
static Result	createFrom (std::int32_t error_code, const char error_description, std::int32_t line, const char file, const char *function)
	Create a detailed object of type `Result` on the heap from an error code. More...

Private Attributes
DescriptionType	_result_handle
	The result handler wrapper.

Detailed Description

A common result class usable as return value throughout.

Definition at line 34 of file result_type_decl.h.

Constructor & Destructor Documentation

◆ Result() [1/11]

Result ( )

inline

Construct empty which basically means no error occurred.

Postcondition: a_util::result::SUCCESS == getErrorCode() &&; -1 == getLine() &&; "No error occurred" == getDescription() &&; "" == getFile() &&; "" == getFunction() &&; "" == getErrorLabel()

Definition at line 30 of file result_type_impl.h.

Referenced by Result::Result(), Result::createFrom(), and Result::operator=().

◆ Result() [2/11]

Result ( bool val )

inline

Construct from bool.

Parameters

[in] val Bool value to construct with

Postcondition: true == a_util::result::Result(true);; false == a_util::result::Result(false);; No dynamic memory is allocated

Definition at line 34 of file result_type_impl.h.

◆ Result() [3/11]

Result ( const ResultInfo< void > & )

inline

Construct with a_util::result::SUCCESS.

This constructors sole intention is to provide the best match during compilation time if a function call returns with a_util::result::SUCCESS. With decltype(a_util::result::SUCCESS) being another type than all other error codes the compiler deduces this constructor as best fit.

Postcondition

See also: Result()

Definition at line 39 of file result_type_impl.h.

◆ Result() [4/11]

Result ( const ResultInfo< ErrorType > & error )

inline

Assign error code to result object.

Parameters

[in] error The error code

Definition at line 44 of file result_type_impl.h.

References a_util::maybe_unused().

◆ Result() [5/11]

Result	(	ResultInfo< ErrorType >	error,
		const char *	error_description,
		std::int32_t	line,
		const char *	file,
		const char *	function
	)

inlineexplicit

Construct result object with complete set of error information.

Template Parameters

ErrorCode Error code (to deduce specialized template to stringify the error code)

Parameters

[in]	error	The The concrete error object
[in]	error_description	Complete description of the error (default: "")
[in]	line	Line in source file the error was reported (default: -1)
[in]	file	Source file the error was reported in (default: "")
[in]	function	Function the error was reported in (default: "")

Definition at line 51 of file result_type_impl.h.

References Result::Result(), ResultInfo< T >::getCode(), and a_util::maybe_unused().

◆ Result() [6/11]

Result ( std::int32_t error_code )

inline

Create result object with just the error code type.

Parameters

[in] error_code The error code

Definition at line 67 of file result_type_impl.h.

◆ Result() [7/11]

Result	(	std::int32_t	error_code,
		const char *	error_description,
		std::int32_t	line,
		const char *	file,
		const char *	function
	)

inlineexplicit

Create result object with complete set of error information from just an error code.

Parameters

[in]	error_code	The error code
[in]	error_description	Complete description of the error (default: "")
[in]	line	Line in source file the error was reported (default: -1)
[in]	file	Source file the error was reported in (default: "")
[in]	function	Function the error was reported in (default: "")

Definition at line 72 of file result_type_impl.h.

References Result::createFrom().

◆ Result() [8/11]

Result	(	const Result &	other_result,
		const char *	error_description,
		std::int32_t	line,
		const char *	file,
		const char *	function
	)

inlineexplicit

Create result object from another result, creating new detailed information.

Parameters

[in]	other_result	Result to copy the error code and error code string information from.
[in]	error_description	Complete description of the error.
[in]	line	Line in source file the error was reported.
[in]	file	Source file the error was reported in.
[in]	function	Function the error was reported in.

Definition at line 82 of file result_type_impl.h.

References Result::Result(), Result::getErrorCode(), and Result::getErrorLabel().

◆ Result() [9/11]

Result ( const Result & other )

inline

Copy constructor.

Parameters

[in] other Where this gets copied from.

Note: No new memory is allocated, the error information from other are safely referenced in the new created object of type Result.

Definition at line 103 of file result_type_impl.h.

◆ Result() [10/11]

Result ( Result && other )

inline

Move operator.

Parameters

[in] other rvalue of type Result moved to *this. Left in an empty but valid state.

Definition at line 128 of file result_type_impl.h.

References Result::Result(), and Result::swap.

◆ Result() [11/11]

Result	(	std::int32_t	error_code,
		const char *	error_description,
		std::int32_t	line,
		const char *	file,
		const char *	function,
		const char *	label
	)

inlineexplicitprivate

Construct result object with complete set of error information.

Parameters

[in]	error_code	The error code
[in]	error_description	Complete description of the error (default: "")
[in]	line	Line in source file the error was reported (default: -1)
[in]	file	Source file the error was reported in (default: "")
[in]	function	Function the error was reported in (default: "")
[in]	label	String representation of error code (default: "")

Definition at line 200 of file result_type_impl.h.

Member Function Documentation

◆ createFrom()

Result createFrom	(	std::int32_t	error_code,
		const char *	error_description,
		std::int32_t	line,
		const char *	file,
		const char *	function
	)

inlinestaticprivate

Create a detailed object of type Result on the heap from an error code.

Parameters

[in]	error_code	The error code to create the result object from.
[in]	error_description	Complete description of the error (default: "")
[in]	line	Line in source file the error was reported (default: -1)
[in]	file	Source file the error was reported in (default: "")
[in]	function	Function the error was reported in (default: "")

Returns: Object of type Result containing detailed error information.

Definition at line 211 of file result_type_impl.h.

References Result::Result().

Referenced by Result::Result().

◆ getDescription()

const char * getDescription ( ) const

inline

Get user provided error description.

Returns: Error description as string.

Definition at line 154 of file result_type_impl.h.

References Result::_result_handle, ResultDescription< DescriptionIntf >::getDetailedDescription(), ResultDescription< DescriptionIntf >::getErrorCode(), and IErrorDescription::getErrorDescription().

◆ getErrorCode()

std::int32_t getErrorCode ( ) const

inline

Get error code.

Returns: Error code.

Definition at line 136 of file result_type_impl.h.

References Result::_result_handle, ResultDescription< DescriptionIntf >::getDetailedDescription(), ResultDescription< DescriptionIntf >::getErrorCode(), and IErrorDescription::getErrorCode().

Referenced by Result::Result(), a_util::result::isOk< Result >(), and a_util::result::operator==().

◆ getErrorLabel()

const char * getErrorLabel ( ) const

inline

Get error label as string representation.

Returns: Error code represented as string.

Definition at line 144 of file result_type_impl.h.

References Result::_result_handle, ResultDescription< DescriptionIntf >::getDetailedDescription(), and IErrorDescription::getErrorCodeLabel().

Referenced by Result::Result().

◆ getFile()

const char * getFile ( ) const

inline

Get name of the file the error was reported in.

Returns: File name as string.

Definition at line 177 of file result_type_impl.h.

References Result::_result_handle, ResultDescription< DescriptionIntf >::getDetailedDescription(), and IErrorDescription::getFileName().

◆ getFunction()

const char * getFunction ( ) const

inline

Get name of the function the error was reported in.

Returns: Function name as string.

Definition at line 186 of file result_type_impl.h.

References Result::_result_handle, ResultDescription< DescriptionIntf >::getDetailedDescription(), and IErrorDescription::getFunctionName().

◆ getLine()

std::int32_t getLine ( ) const

inline

Get line in source file where the error was reported.

Returns: Line number.

Definition at line 168 of file result_type_impl.h.

References Result::_result_handle, ResultDescription< DescriptionIntf >::getDetailedDescription(), and IErrorDescription::getLine().

◆ operator bool()

operator bool ( ) const

inlineexplicitnoexcept

Convert result to bool.

Returns: If error code equals 0, true, otherwise false

Definition at line 195 of file result_type_impl.h.

◆ operator=() [1/4]

Result & operator= ( bool val )

inline

Assignment from bool.

Parameters

[in] val Bool value to construct with

Postcondition: No dynamic memory is allocated.

Returns: Reference to *this

Definition at line 113 of file result_type_impl.h.

References Result::Result(), and Result::operator=().

◆ operator=() [2/4]

Result & operator= ( const ResultInfo< void > & )

inline

Assign with a_util::result::SUCCESS.

This assignments sole intention is to provide the best match during compilation time if a function call returns with a_util::result::SUCCESS. With decltype(a_util::result::SUCCESS) being another type than all other error codes the compiler deduces this assignment operator as best fit.

Postcondition

See also: Result()

Returns: *this

Definition at line 123 of file result_type_impl.h.

References Result::Result().

Referenced by Result::operator=().

◆ operator=() [3/4]

Result & operator= ( Result other )

inline

Assignment operator.

Parameters

[in] other Result type being assigned to the this object.

Note: Passing other by value is fully intentional here!

Returns: *this

Definition at line 107 of file result_type_impl.h.

References Result::swap.

◆ operator=() [4/4]

Result & operator= ( std::int32_t val )

inline

Assignment from numeric.

Parameters

[in] val Numeric value to construct with

Postcondition: No dynamic memory is allocated.

Returns: Reference to *this

Definition at line 118 of file result_type_impl.h.

References Result::Result(), and Result::operator=().

Public Member Functions

Private Types

Private Member Functions

Static Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Result() [1/11]

◆ Result() [2/11]

◆ Result() [3/11]

◆ Result() [4/11]

◆ Result() [5/11]

◆ Result() [6/11]

◆ Result() [7/11]

◆ Result() [8/11]

◆ Result() [9/11]

◆ Result() [10/11]

◆ Result() [11/11]

Member Function Documentation

◆ createFrom()

◆ getDescription()

◆ getErrorCode()

◆ getErrorLabel()

◆ getFile()

◆ getFunction()

◆ getLine()

◆ operator bool()

◆ operator=() [1/4]

◆ operator=() [2/4]

◆ operator=() [3/4]

◆ operator=() [4/4]