Концепции C++: MoveAssignable (начиная с C++11)

 

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Концепции C++

Basic Original: Basic The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
DefaultConstructible CopyAssignable CopyConstructible	MoveAssignable (C++11) MoveConstructible (C++11) Destructible
Библиотека-Wide Original: Library-Wide The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
EqualityComparable LessThanComparable Swappable (C++11) ValueSwappable (C++11)	NullablePointer (C++11) Hash (C++11) Allocator
Контейнер Original: Container The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Container SequenceContainer ReversibleContainer	AssociativeContainer AllocatorAwareContainer UnorderedAssociativeContainer (C++11)
Контейнер элементов Original: Container Elements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
CopyInsertable (C++11) MoveInsertable (C++11)	EmplaceConstructible (C++11)
Iterator Original: Iterator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Iterator OutputIterator InputIterator	ForwardIterator BidirectionalIterator RandomAccessIterator
Случайных чисел Original: Random Numbers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
SeedSequence (C++11) RandomNumberEngine (C++11)	RandomNumberDistribution (C++11) UniformRandomNumberGenerator (C++11) RandomNumberEngineAdaptor (C++11)
Параллелизмом Original: Concurrency The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
BasicLockable (C++11) Lockable (C++11) TimedLockable (C++11)	Mutex (C++11) TimedMutex (C++11)
Другое Original: Other The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
CharTraits pos_type off_type Clock (C++11)	UnaryTypeTrait (C++11) BinaryTypeTrait (C++11) TransformationTrait (C++11) TrivialClock (C++11)

 

Указывает, что экземпляр типа могут двигаться назначенный (перемещен). Это означает, что тип имеет движение семантики, то есть может передать свое внутреннее состояние на другой экземпляр того же типа, потенциально уменьшая накладные расходы.

Original:

Specifies that an instance of the type can be move-assigned (moved). This means that type has move semantics: that is, can transfer its internal state to another instance of the same type potentially minimizing the overhead.

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Требования

Типа должны соответствовать требованиям CopyAssignable и / или осуществлять следующие функции:

Original:

The type must meet CopyAssignable requirements and/or implement the following functions:

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Type::operator=

Type& Type::operator=( Type&& other ); Type& Type::operator=( const Type&& other ); Type& Type::operator=( volatile Type&& other ); Type& Type::operator=( const volatile Type&& other );		(Одним из вариантов является достаточным)

Переместите оператор присваивания: assigns the contents of other. The internal state of other is unspecified after the move. However, it must still be valid, that is, no invariants of the type are broken. The function must return *this.

The following expressions must have the specified effects:

Выражение Original: Expression The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Effects
a = rv;	a эквивалентно rv, где a является экземпляром Type и rv является RValue ссылки из Type . Original: a is equivalent to rv, where a is an instance of Type and rv is a RValue ссылки of Type. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

См. также

is_move_assignable is_trivially_move_assignable is_nothrow_move_assignable (C++11) (C++11) (C++11)	проверяет, является ли тип имеет оператор ход назначения Original: checks if a type has a move assignment operator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (шаблон класса)