Namespaces
Variants

std::atomic<T>:: operator T

From cppreference.net
C++
Concurrency support library
Threads
(C++11)
(C++20)
(C++17) (C++17)
this_thread namespace
(C++11)
(C++11)
Cooperative cancellation
Mutual exclusion
Generic lock management
Condition variables
(C++11)
(C++11)
(C++11)
(C++11)
Semaphores
(C++20) (C++20)
Latches and Barriers
(C++20)
(C++20)
Futures
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
Safe reclamation
Hazard pointers
(C++26)
(C++26)
(C++26)
Atomic types
(C++11)
(C++20)
(C++11)
Initialization of atomic types
(C++11) (deprecated in C++20)
(C++11) (deprecated in C++20)
(C++11)
Memory ordering
(C++11)
(C++11) (deprecated in C++26)
(C++11)
(C++11)
Free functions for atomic operations
(C++11) (C++11)
(C++11) (C++11)
(C++11) (C++11)
(C++11) (C++11) (C++11) (C++11)
(C++11) (C++11)
(C++11) (C++11)
(C++11) (C++11)
(C++11) (C++11)
(C++11) (C++11)
(C++26) (C++26)
(C++26) (C++26)
(C++11)
(C++20) (C++20)
(C++20)
(C++20)
Free functions for atomic flags
(C++11) (C++11)
(C++11) (C++11)
(C++20) (C++20)
(C++20) (C++20)
(C++20)
(C++20)
std::atomic
Member functions
atomic::operator T
(C++20)
(C++20)
(C++20)
Constants
(C++17)
Specialized member functions
Specialized for integral,
floating-point (C++20)
and pointer types
Specialized for integral and
pointer types only
(C++26)
(C++26)
Specialized for integral types only
operator T ( ) const noexcept ;
(1) (C++11以降)
operator T ( ) const volatile noexcept ;
(2) (C++11以降)

アトミック変数の現在値をアトミックにロードして返します。次と同等です： load ( ) 。

std::atomic<T>::is_always_lock_free が false であり、かつオーバーロード (2) がオーバーロード解決に参加する場合、非推奨となります。

(C++20以降)

パラメータ

(なし)

戻り値

アトミック変数の現在の値。

関連項目

アトミックオブジェクトの値をアトミックに取得する
(公開メンバ関数)