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<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> CopyAssignable

提供: cppreference.com
< cpp‎ | concept

 
 
C + +の概念
基本
Original:
Basic
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ライブラリワイド
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Library-Wide
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コンテナ
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Container
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コンテナ要素
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Container Elements
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イテレータ
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Iterator
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乱数
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Random Numbers
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同時実行
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Concurrency
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BasicLockable(C++11)
Lockable(C++11)
TimedLockable(C++11)
Mutex(C++11)
TimedMutex(C++11)
その他
Original:
Other
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Specifies that an instance of the type can be copy-assigned (copied).

この概念は、MoveAssignableを意味する.
Original:
This concept implies MoveAssignable.
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[編集] 要件

タイプは、以下の機能を実装する必要があります
Original:
The type must 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 );
(亜種の一つで十分です)

Copy assignment operator: assigns the contents of other. The internal state of other must not be modified.

The following expressions must have the specified effects:

Original:
Expression
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Effects
a = v; a is equivalent to v, where a is an instance of Type and v is an instance of Type. v must be unchanged.

[編集] も参照してください

タイプかどうかをチェックするには、コピー代入演算子を持っています
Original:
checks if a type has a copy assignment operator
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(クラステンプレート) [edit]