std::error_condition::operator=

 

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General utilities Date and time Function objects Formatting library (C++20) bitset hash (C++11) Relational operators (deprecated in C++20) rel_ops::operator!=rel_ops::operator> rel_ops::operator<=rel_ops::operator>= Integer comparison functions cmp_equalcmp_lesscmp_less_than (C++20)(C++20)(C++20)    cmp_not_equalcmp_greatercmp_greater_than (C++20)(C++20)(C++20) in_range (C++20) Swap and type operations swap ranges::swap (C++20) exchange (C++14) declval (C++11) to_underlying (C++23) forward (C++11) forward_like (C++23) move (C++11) move_if_noexcept (C++11) as_const (C++17) Common vocabulary types pair tuple (C++11) optional (C++17) any (C++17) variant (C++17) tuple_size (C++11) tuple_element (C++11) apply (C++17) make_from_tuple (C++17) expected (C++23) Elementary string conversions to_chars (C++17) from_chars (C++17) chars_format (C++17)

 

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std::error_condition

Member functions

error_condition::error_condition

error_condition::operator=

error_condition::assign

error_condition::clear

error_condition::value

error_condition::category

error_condition::message

error_condition::operator bool

Non-member functions

operator==operator!=operator<operator<=> (until C++20)(until C++20)(C++20)

Helper classes

is_error_condition_enum

hash<std::error_condition>

 

template< class ErrorConditionEnum > error_condition& operator=( ErrorConditionEnum e ) noexcept;	(1)	(since C++11)
error_condition& operator=( const error_condition& other ) = default;	(2)	(since C++11) (implicitly declared)
error_condition& operator=( error_condition&& other ) = default;	(3)	(since C++11) (implicitly declared)

Assigns contents to an error condition.

1) Assigns error condition for enum e. Effectively calls make_error_condition that is only found by argument-dependent lookup for e and then replaces *this with the result. This overload participates in overload resolution only if std::is_error_condition_enum<ErrorConditionEnum>::value is true.

2,3) Implicitly defined copy-assignment operator and move-assignment operator assign the contents of other to *this.

Parameters

e	-	error condition enum
other	-	another error condition to assign with

Return value

*this.

Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR	Applied to	Behavior as published	Correct behavior
LWG 3629	C++11	only std::make_error_condition overloads were used	ADL-found overloads are used