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- std::atomic
- std::atomic_flag
- std::atomic_ref
- std::atomic_ref<T>::atomic_ref
- std::atomic_ref<T>::operator=
- std::atomic_ref<T>::is_lock_free
- std::atomic_ref<T>::store
- std::atomic_ref<T>::load
- std::atomic_ref<T>::operator T
- std::atomic_ref<T>::exchange
- std::atomic_ref<T>::compare_exchange_weak, std::atomic_ref<T>::compare_exchange_strong
- std::atomic_ref<T>::wait
- std::atomic_ref<T>::notify_one
- std::atomic_ref<T>::notify_all
- std::atomic_ref<T>::is_always_lock_free
- std::atomic_ref<T>::required_alignment
- std::atomic_ref<T>::fetch_add
- std::atomic_ref<T>::fetch_sub
- std::atomic_ref<T>::fetch_and
- std::atomic_ref<T>::fetch_or
- std::atomic_ref<T>::fetch_xor
- std::atomic_ref<T>::operator++,++(int),--,--(int)
- std::atomic_ref<T>::operator+=,-=,&=,|=,^=
- std::atomic_store, std::atomic_store_explicit
- std::atomic_load, std::atomic_load_explicit
- std::atomic_exchange, std::atomic_exchange_explicit
- std::atomic_compare_exchange_weak, std::atomic_compare_exchange_strong, std::atomic_compare_exchange_weak_explicit, std::atomic_compare_exchange_strong_explicit
- std::atomic_fetch_add, std::atomic_fetch_add_explicit
- std::atomic_fetch_sub, std::atomic_fetch_sub_explicit
- std::atomic_fetch_and, std::atomic_fetch_and_explicit
- std::atomic_fetch_or, std::atomic_fetch_or_explicit
- std::atomic_fetch_xor, std::atomic_fetch_xor_explicit
- std::atomic_is_lock_free, ATOMIC_xxx_LOCK_FREE
- std::atomic_wait, std::atomic_wait_explicit
- std::atomic_notify_one
- std::atomic_notify_all
- std::atomic_flag_test_and_set, std::atomic_flag_test_and_set_explicit
- std::atomic_flag_clear, std::atomic_flag_clear_explicit
- std::atomic_flag_test, std::atomic_flag_test_explicit
- std::atomic_flag_wait, std::atomic_flag_wait_explicit
- std::atomic_flag_notify_one
- std::atomic_flag_notify_all
- std::atomic_init
- ATOMIC_VAR_INIT
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- std::memory_order
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位置：首页 > C++ 参考手册 >原子操作库 >std::atomic_ref > std::atomic_ref<T>::load
std::atomic_ref<T>::load
| T load( std::memory_order order = std::memory_order_seq_cst ) const noexcept; |
(C++20 起) | |
原子地加载并返回被引用对象的当前值。按照 order 的值影响内存。
order 必须是 std::memory_order_relaxed 、 std::memory_order_consume 、 std::memory_order_acquire 或 std::memory_order_seq_cst 之一。否则行为未定义。
参数
| order | - | 要施加的内存顺序制约 |
返回值
被引用对象的当前值。
参阅
| 从被引用对象加载值 (公开成员函数) |