名前空間
変種
操作

std::atomic_load, std::atomic_load_explicit

提供: cppreference.com
< cpp‎ | atomic

 
 
アトミック操作ライブラリ
タイプ
Original:
Types
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atomic(C++11)
atomic_is_lock_free(C++11)
機能します
Original:
Functions
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atomic_store
atomic_store_explicit
(C++11)
(C++11)
atomic_load
atomic_load_explicit
(C++11)
(C++11)
atomic_exchange
atomic_exchange_explicit
(C++11)
(C++11)
atomic_compare_exchange_weak
atomic_compare_exchange_weak_explicit
atomic_compare_exchange_strong
atomic_compare_exchange_strong_explicit
(C++11)
(C++11)
(C++11)
(C++11)
atomic_fetch_add
atomic_fetch_add_explicit
(C++11)
(C++11)
atomic_fetch_sub
atomic_fetch_sub_explicit
(C++11)
(C++11)
atomic_fetch_and
atomic_fetch_and_explicit
(C++11)
(C++11)
atomic_fetch_or
atomic_fetch_or_explicit
(C++11)
(C++11)
atomic_fetch_xor
atomic_fetch_xor_explicit
(C++11)
(C++11)
アトミックのフラグ
Original:
Atomic flags
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atomic_flag(C++11)
atomic_flag_test_and_set
atomic_flag_test_and_set_explicit
(C++11)
(C++11)
atomic_flag_clear
atomic_flag_clear_explicit
(C++11)
(C++11)
初期化
Original:
Initialization
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atomic_init(C++11)
ATOMIC_VAR_INIT(C++11)
ATOMIC_FLAG_INIT(C++11)
メモリは発注
Original:
Memory ordering
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memory_order(C++11)
kill_dependency(C++11)
atomic_thread_fence(C++11)
atomic_signal_fence(C++11)
 
Defined in header <atomic>
template< class T >
T atomic_load( std::atomic<T>* obj );
(1) (C++11およびそれ以降)
template< class T >
T atomic_load( volatile std::atomic<T>* obj );
(2) (C++11およびそれ以降)
template< class T >

T atomic_load_explicit( std::atomic<T>* obj,

                        std::memory_order order );
(3) (C++11およびそれ以降)
template< class T >

T atomic_load_explicit( volatile std::atomic<T>* obj,

                        std::memory_order order );
(4) (C++11およびそれ以降)
1-2)
アトミックobjであるかのようにobj->load()が指す値が取得されます
Original:
Atomically obtains the value pointed to by obj as if by obj->load()
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3-4)
アトミックobjであるかのようにobj->load(order)が指す値が取得されます
Original:
Atomically obtains the value pointed to by obj as if by obj->load(order)
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目次

[編集] パラメータ

obj -
変更するアトミックオブジェクトへのポインタ
Original:
pointer to the atomic object to modify
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order -
メモリsycnhronizationは、この操作の順序:のみstd::memory_order_relaxedstd::memory_order_consumestd::memory_order_acquirestd::memory_order_seq_cst許可されています.
Original:
the memory sycnhronization ordering for this operation: only std::memory_order_relaxed, std::memory_order_consume, std::memory_order_acquire and std::memory_order_seq_cst are permitted.
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[編集] 値を返します

objが指す原子オブジェクトによって保持されている値
Original:
The value that is held by the atomic object pointed to by obj
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[編集] 例外

noexcept specification:  
noexcept
  (C++11およびそれ以降)

[編集] も参照してください

(C++11)
アトミックアトミックオブジェクトの値が取得されます
Original:
atomically obtains the value of the atomic object
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(パブリックメンバ関数of std::atomic) [edit]
アトミックに非アトミック引数でアトミックオブジェクトの値を置き換えます
Original:
atomically replaces the value of the atomic object with a non-atomic argument
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(関数テンプレート) [edit]
与えられたアトミック操作用のメモリ順序の制約を定義しています
Original:
defines memory ordering constraints for the given atomic operation
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(typedef) [edit]
のstd :: shared_ptrのためのアトミック操作を専門としています
Original:
specializes atomic operations for std::shared_ptr
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(関数テンプレート)
C documentation for atomic_load, atomic_load_explicit