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std::atomic<T>::load

(since C++11)
T load( std::memory_order order = std::memory_order_seq_cst ) const noexcept;
T load( std::memory_order order = 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.

order must be one of std::memory_order_relaxed, std::memory_order_consume, std::memory_order_acquire or std::memory_order_seq_cst. Otherwise the behavior is undefined.

The volatile-qualified version is deprecated if std::atomic<T>::is_always_lock_free is false.

(since C++20)

Parameters

order - memory order constraints to enforce

Return value

The current value of the atomic variable.

See also

loads a value from an atomic object
(public member function)
(C++11)(C++11)
atomically obtains the value stored in an atomic object
(function template)

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