std::atomic<T>::load
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std::atomic
atomic::load
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T load( std::memory_order order
= std::memory_order_seq_cst ) const noexcept;
(1)
(since C++11)
= std::memory_order_seq_cst ) const noexcept;
T load( std::memory_order order
= std::memory_order_seq_cst ) const volatile noexcept;
(2)
(since C++11)
= std::memory_order_seq_cst ) const volatile noexcept;
Atomically loads and returns the current value of the atomic variable. Memory is affected according to the value of order.
If order is one of std::memory_order_release and std::memory_order_acq_rel , the behavior is undefined.
It is deprecated if std::atomic <T>::is_always_lock_free is false and overload (2) participates in overload resolution.
(since C++20)[edit] Parameters
order
-
memory order constraints to enforce
[edit] Return value
The current value of the atomic variable.