std::allocator::allocate

 

C++

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正規表現ライブラリ (C++11)

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スレッドのサポートライブラリ (C++11)

 

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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
pointer_traits (C++11)
addressof (C++11)
align (C++11)
Cライブラリ Original: C Library The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
malloc calloc	realloc free

 

std::allocator

メンバ関数 Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

operator== operator!=

 

pointer allocate( size_type n, std::allocator<void>::const_pointer hint = 0 );

割り当てn * sizeof(T)::operator new(std::size_t)を呼び出すことによって初期化されていないバイトの記憶領域が、いつ、どのようにこの関数が呼び出されると、それは特定されていません。 hintを参照の局所性を提供するために使用することができるポインタ：アロケータは、実装によってサポートされている場合、hintにできるだけ近い新しいメモリブロックを割り当てようとします.

Original:

Allocates n * sizeof(T) bytes of uninitialized storage by calling ::operator new(std::size_t), but it is unspecified when and how this function is called. The pointer hint may be used to provide locality of reference: the allocator, if supported by the implementation, will attempt to allocate the new memory block as close as possible to hint.

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パラメータ

n	-	にストレージを割り当てたオブジェクトの数 Original: the number of objects to allocate storage for The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
hint	-	近くのメモリ位置へのポインタ Original: pointer to a nearby memory location The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

値を返します

適切にアライメントされたメモリ·ブロックの最初のバイトへのポインタと型nのTオブジェクトの配列を保持するのに十分な.

Original:

Pointer to the first byte of a memory block suitably aligned and sufficient to hold an array of n objects of type T.

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例外

割り当てが失敗した場合にスローされますstd::bad_alloc.

Original:

Throws std::bad_alloc if allocation fails.

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も参照してください

allocate [静的]	アロケータを使用して初期化されていないストレージが割り当てられます Original: allocates uninitialized storage using the allocator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (公共の静的メンバ関数of std::allocator_traits)