<div class="t-tr-text">C + +: conceitos<div class="t-tr-dropdown"><div><div><div class="t-tr-dropdown-arrow-border"></div><div class="t-tr-dropdown-arrow"></div><div class="t-tr-dropdown-h">Original:</div><div class="t-tr-dropdown-orig">C++ concepts:</div><div class="t-tr-dropdown-notes">The text has been machine-translated via [http://translate.google.com Google Translate].<br/> You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.</div></div></div></div></div> RandomAccessIterator

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C++

Suporte ao Compilador

Freestanding and hosted

Linguagem

Headers da Biblioteca Standard

Requerimentos nomeados

Feature test macros (C++20)

Biblioteca de suporte de língua

Biblioteca de conceitos (C++20)

Biblioteca de diagnósticos

Biblioteca de utilitários em geral

Biblioteca de strings

Biblioteca de containers

Ranges library (C++20)

Biblioteca de iteradores

Biblioteca de algorítmos

Biblioteca numérica

Biblioteca de localizações

Biblioteca de input/output

Biblioteca de sistema de arquivo (C++17)

Biblioteca de expressões regulares (C++11)

Biblioteca de operações atômicas (C++11)

Biblioteca de suporte de thread (C++11)

Especificações Técnicas

Índice de symbolos

Bibliotecas externas

 

C + + conceitos

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
Biblioteca-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
Container 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)
Elementos de contêineres 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
Números aleatórios 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)
Simultaneidade 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)
Outro 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)

 

A RandomAccessIterator é um BidirectionalIterator que pode ser movido para apontar para qualquer elemento em tempo constante.

Original:

A RandomAccessIterator is a BidirectionalIterator that can be moved to point to any element in constant time.

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Um ponteiro de tipo é um exemplo de um tipo que satisfaça este conceito.

Original:

A standard pointer is an example of a type that satisfies this concept.

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Requisitos

• BidirectionalIterator

Além do requisito acima, para um tipo It ser um RandomAccessIterator, instâncias a, b, i, r e de It deve:

Original:

In addition to the above requirement, for a type It to be an RandomAccessIterator, instances a, b, i, and r of It must:

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Expression	Return	Equivalent expression	Notes
r += n	It&	if(n>=0) while(n--) ++r; else while(n++) --r; return r;	n tanto pode ser positivo ou negativo Original: n can be both positive or negative The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Complexidade constante (isto é, a expressão equivalente, não pode ser usado como a aplicação) Original: Constant complexity (that is, the equivalent expression cannot be used as implementation) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
i + n	It	It temp = i; return temp += n;
n + i	It	i + n
r -= n	It&	return r += -n;
i - n	It	It temp = i; return temp -= n;
n - i	It	i - n
b - a	difference	n	returns n such that a+n==b
i[n]	convertible to reference	*(i + n)
a < b	contextually convertible to bool	b - a > 0	Strict total ordering relation: !(a < a) se a < b então !(b < a) Original: if a < b then !(b < a) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. se a < b e b < c então a < c Original: if a < b and b < c then a < c The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. a < b ou b < a ou a == b (exatamente uma das expressões é verdadeira) Original: a < b or b < a or a == b (exactly one of the expressions is true) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
a > b	contextually convertible to bool	b < a	Total ordering relation opposite to a < b
a >= b	contextually convertible to bool	!(a < b)
a <= b	contextually convertible to bool	!(a > b)

Notas de mesa

• It é o tipo de aplicação deste conceito

  Original:

  It is the type implementing this concept

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• T é o std::iterator_traits<It>::value_type tipo

  Original:

  T is the type std::iterator_traits<It>::value_type

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• reference é o std::iterator_traits<It>::reference tipo

  Original:

  reference is the type std::iterator_traits<It>::reference

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• difference é o std::iterator_traits<It>::difference_type tipo

  Original:

  difference is the type std::iterator_traits<It>::difference_type

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• i, a, b são objetos do tipo It ou const It

  Original:

  i, a, b are objects of type It or const It

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• r é um valor de It& tipo

  Original:

  r is a value of type It&

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• n é um número inteiro de difference tipo

  Original:

  n is an integer of type difference

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As regras acima implica que RandomAccessIterator também implementa LessThanComparable.

Original:

The above rules imply that RandomAccessIterator also implements LessThanComparable.

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A mutable RandomAccessiterator é um BidirectionalIterator que, adicionalmente, satisfaz os requisitos OutputIterator.

Original:

A mutable RandomAccessiterator is a BidirectionalIterator that additionally satisfies the OutputIterator requirements.

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