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std::allocator::construct

提供: cppreference.com
< cpp‎ | memory‎ | allocator

 
 
動的なメモリ管理
低レベルのメモリ管理
アロケータ
Original:
Allocators
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allocator
allocator_traits(C++11)
allocator_arg_t(C++11)
allocator_arg(C++11)
uses_allocator(C++11)
scoped_allocator_adaptor(C++11)
ストレージを初期化されていない
Original:
Uninitialized storage
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uninitialized_copy
uninitialized_copy_n(C++11)
uninitialized_fill
uninitialized_fill_n
raw_storage_iterator
get_temporary_buffer
return_temporary_buffer
スマートポインタ
Original:
Smart pointers
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unique_ptr(C++11)
shared_ptr(C++11)
weak_ptr(C++11)
auto_ptr(廃止予定)
owner_less(C++11)
enable_shared_from_this(C++11)
bad_weak_ptr(C++11)
default_delete(C++11)
ガベージコレクションをサポートしています
Original:
Garbage collection support
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declare_reachable(C++11)
undeclare_reachable(C++11)
declare_no_pointers(C++11)
undeclare_no_pointers(C++11)
pointer_safety(C++11)
get_pointer_safety(C++11)
その他
Original:
Miscellaneous
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pointer_traits(C++11)
addressof(C++11)
align(C++11)
Cライブラリ
Original:
C Library
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std::allocator
メンバ関数
Original:
Member functions
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allocator::allocator
allocator::~allocator
allocator::address
allocator::allocate
allocator::deallocate
allocator::max_size
allocator::construct
allocator::destroy
非メンバ関数
Original:
Non-member functions
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operator==
operator!=
 
Defined in header <memory>
void construct( pointer p, const_reference val );
(C + + 11時まで)
template< class U, class... Args >
void construct( U* p, Args&&... args );
(C + + 11以来)
配置-newを使って、Tが指す割り当てられ、初期化されていないストレージのタイプpのオブジェクトを構築します
Original:
Constructs an object of type T in allocated uninitialized storage pointed to by p, using placement-new
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1)
new((void *)p) T(val)呼び出します
Original:
Calls new((void *)p) T(val)
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2)
::new((void *)p) U(std::forward<Args>(args)...)呼び出します
Original:
Calls ::new((void *)p) U(std::forward<Args>(args)...)
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[編集] パラメータ

p -
割り当てられた初期化されていないストレージへのポインタ
Original:
pointer to allocated uninitialized storage
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val -
コピーコンストラクタの引数として使用する値
Original:
the value to use as the copy constructor argument
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args... -
コンストラクタの引数に使用する
Original:
the constructor arguments to use
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[編集] 値を返します

(なし)
Original:
(none)
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[編集] も参照してください

[静的]
割り振られたストレージ内のオブジェクトを構築します
Original:
constructs an object in the allocated storage
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(関数テンプレート) [edit]
割り当て関数
Original:
allocation functions
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(機能) [edit]