std::error_category::operator==,!=,<

 

C++

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rel_ops::operator!=rel_ops::operator>rel_ops::operator<=rel_ops::operator>=

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optional

any

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in_placein_place_typein_place_indexin_place_tin_place_type_tin_place_index_t

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Error handling

Exception handling exception uncaught_exceptionuncaught_exceptions (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 (C++11)(until C++17) set_unexpected (until C++17)

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) Error codes Error codes errno Assertions assert system_error facility 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)

 

std::error_category

Member functions

error_category::error_category

error_category::~error_category

error_category::name

error_category::default_error_condition

error_category::equivalent

error_category::message

error_category::operator==error_category::operator!=error_category::operator<

 

bool operator==( const error_category& rhs ) const;	(1)	(since C++11)
bool operator!=( const error_category& rhs ) const;	(2)	(since C++11)
bool operator<( const error_category& rhs ) const;	(3)	(since C++11)

Compares to another error category.

1) Checks whether *this and rhs refer to the same object.

2) Checks whether *this and rhs do not refer to the same object.

3) Orders *this and rhs by the order of this and &rhs. Equivalent to std::less<const error_category*>()(this, &rhs).

Parameters

code	-	specifies the error code to compare
condition	-	specifies the error condition to compare

Return value

1) true if *this and rhs refer to the same object, false otherwise.

2) true if *this and rhs do not refer to the same object, false otherwise.

3) true if *this is less than rhs as defined by the order of this and &rhs.

Exceptions

noexcept specification:  

noexcept