std::tx_exception

 

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Exception handling exception uncaught_exceptionuncaught_exceptions (until C++20*)  (C++17) exception_ptr (C++11) make_exception_ptr (C++11) current_exception (C++11) rethrow_exception (C++11) nested_exception (C++11) throw_with_nested (C++11) rethrow_if_nested (C++11) Exception handling failures terminate terminate_handler get_terminate (C++11) set_terminate bad_exception unexpected (until C++17*) unexpected_handler (until C++17*) get_unexpected (until C++17*) set_unexpected (until C++17*) Error numbers Error codes errno Assertions assert

Exception categories logic_error invalid_argument domain_error length_error out_of_range runtime_error range_error overflow_error underflow_error tx_exception (TM TS) System error error_category (C++11) generic_category (C++11) system_category (C++11) error_condition (C++11) errc (C++11) error_code (C++11) system_error (C++11) Stacktrace stacktrace_entry (C++23) basic_stacktrace (C++23) Debugging support is_debugger_present (C++26) breakpoint_if_debugging (C++26) breakpoint (C++26)

 

Defined in header <stdexcept>
template< class T > class tx_exception : public std::runtime_error;		(TM TS)

Defines an exception type that can be used to cancel and roll back an atomic transaction initiated by the keyword atomic_cancel.

If T is not TriviallyCopyable, the program that specializes std::tx_exception<T> is ill-formed.

Member functions

std::tx_exception::tx_exception

explicit tx_exception( T value ) transaction_safe;	(1)	(TM TS)
tx_exception( T value, const std::string& what_arg ) transaction_safe;	(2)	(TM TS)
tx_exception( T value, const char* what_arg ) transaction_safe;	(3)	(TM TS)
tx_exception( const tx_exception& other ) transaction_safe noexcept;	(4)	(TM TS)

1-3) Constructs the exception object with what_arg as explanatory string that can be accessed through what() and value as the object that can be accessed through get().

4) Copy constructor. If *this and other both have dynamic type std::tx_exception<T> then std::strcmp(what(), other.what()) == 0.

Parameters

value	-	payload object
what_arg	-	explanatory string
other	-	another exception object to copy

Exceptions

1-3) May throw implementation-defined exceptions.

std::tx_exception::operator=

tx_exception& operator=( const tx_exception& other ) transaction_safe noexcept;		(TM TS)

Assigns the contents with those of other. If *this and other both have dynamic type std::tx_exception<T> then std::strcmp(what(), other.what()) == 0 after assignment.

Parameters

other

-

another exception object to assign with

Return value

*this

std::tx_exception::get

T get() const transaction_safe;		(TM TS)

Returns the payload object held by the exception object.

Exceptions

May throw implementation-defined exceptions.

std::tx_exception::what

virtual const char* what() const transaction_safe_dynamic noexcept;		(TM TS)

Returns the explanatory string.

Parameters

(none)

Return value

Pointer to a null-terminated string with explanatory information.

Inherited from std::runtime_error

Inherited from std::exception

Member functions

(destructor) [virtual]	destroys the exception object (virtual public member function of std::exception)
what [virtual]	returns an explanatory string (virtual public member function of std::exception)