Instance Method インスタンスメソッド

copy

Returns the object returned by copyWithZone:.

Declaration 宣言 

- (id)copy;

Return Value 戻り値

The object returned by the NSCopying protocol method copyWithZone:,.

Discussion 解説

This is a convenience method for classes that adopt the NSCopying protocol. An exception is raised if there is no implementation for copyWithZone:.

NSObject does not itself support the NSCopying protocol. Subclasses must support the protocol and implement the copyWithZone: method. A subclass version of the copyWithZone: method should send the message to super first, to incorporate its implementation, unless the subclass descends directly from NSObject.

See Also 参照

Creating, Copying, and Deallocating Objects オブジェクトの作成、複製、そして割り当て解除

+ alloc
Returns a new instance of the receiving class. レシーバのクラスの新しいインスタンスを返します。
+ allocWithZone:
Returns a new instance of the receiving class. レシーバのクラスの新しいインスタンスを返します。
- init
Implemented by subclasses to initialize a new object (the receiver) immediately after memory for it has been allocated. サブクラスによって実装されて、新しいオブジェクト（レシーバ）を、それのためのメモリが割り当てられた直後に初期化します。
+ copyWithZone:
Returns the receiver. レシーバを返します。
- mutableCopy
Returns the object returned by mutableCopyWithZone: where the zone is nil.
+ mutableCopyWithZone:
Returns the receiver. レシーバを返します。
- dealloc
Deallocates the memory occupied by the receiver. レシーバによって占有されたメモリを割り当て解除します。
+ new
Allocates a new instance of the receiving class, sends it an init message, and returns the initialized object.