<div class="t-tr-text">C + +の概念:<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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RandomAccessIterator
は、一定時間内の任意の要素を指すように移動することができBidirectionalIterator
です.Original:
A
RandomAccessIterator
is a BidirectionalIterator
that can be moved to point to any element in constant time.The text has been machine-translated via Google Translate.
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標準のポインタは、このコンセプトを満たす型の例です。.
Original:
A standard pointer is an example of a type that satisfies this concept.
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[編集] 要件
上記の要件に加えて、型
It
ためRandomAccessIterator
されるためには、インスタンスがa
、b
、i
のr
、とIt
を行う必要がありますOriginal:
In addition to the above requirement, for a type
It
to be an RandomAccessIterator
, instances a
, b
, i
, and r
of It
must:The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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Expression | Return | Equivalent expression | Notes |
---|---|---|---|
r += n | It& | if(n>=0) while(n--) ++r; |
|
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 > 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) |
[編集] 表の注意事項
It
この概念を実装している型ですOriginal:It
is the type implementing this conceptThe text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.T
タイプstd::iterator_traits<It>::value_typeですOriginal:T
is the type std::iterator_traits<It>::value_typeThe text has been machine-translated via Google Translate.
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タイプstd::iterator_traits<It>::referenceですOriginal:reference
is the type std::iterator_traits<It>::referenceThe text has been machine-translated via Google Translate.
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タイプstd::iterator_traits<It>::difference_typeですOriginal:difference
is the type std::iterator_traits<It>::difference_typeThe text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.i
、a
、b
型のオブジェクトでIt
またはconst It
Original:i
,a
,b
are objects of typeIt
orconst It
The text has been machine-translated via Google Translate.
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タイプIt&
の値ですOriginal:r
is a value of typeIt&
The text has been machine-translated via Google Translate.
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タイプdifference
の整数であるOriginal:n
is an integer of typedifference
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上記の規則はRandomAccessIteratorも
LessThanComparable
を実装していることを意味するものではあり.Original:
The above rules imply that RandomAccessIterator also implements
LessThanComparable
.The text has been machine-translated via Google Translate.
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mutable RandomAccessiterator
はさらにBidirectionalIterator
要件を満たしOutputIterator
です.Original:
A
mutable RandomAccessiterator
is a BidirectionalIterator
that additionally satisfies the OutputIterator
requirements.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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