std::atomic::load (3) Linux Manual Page

std::atomic<T>::load – std::atomic<T>::load

Synopsis

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

    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.

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
operator_T (public member function)
atomic_load
atomic_load_explicit atomically obtains the value stored in an atomic object
                     (function template)
(C++11)
(C++11)