std::atomic_load
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| Defined in header | | |
|---|---|---|
| | (1) | (since C++11) |
| template< class T > T atomic_load( const std::atomic<T>* obj | | |
| template< class T > T atomic_load( const volatile std::atomic<T>* obj | | |
| | (2) | (since C++11) |
| template< class T > T atomic_load_explicit( const std::atomic<T>* obj, std::memory_order order | | |
| template< class T > T atomic_load_explicit( const volatile std::atomic<T>* obj, std::memory_order order | |
1%29原子地获得obj好像obj->load()
2%29原子地获得obj好像obj->load(order)
参数
| obj | - | pointer to the atomic object to modify |
|---|---|---|
| order | - | the memory synchronization ordering for this operation: only std::memory_order_relaxed, std::memory_order_consume, std::memory_order_acquire and std::memory_order_seq_cst are permitted. |
返回值
所指向的原子对象所持有的值。obj...
例外
noexcept规格：
noexcept
另见
| load | atomically obtains the value of the atomic object (public member function of std::atomic) |
|---|---|
| atomic_storeatomic_store_explicit (C++11)(C++11) | atomically replaces the value of the atomic object with a non-atomic argument (function template) |
| memory_order (C++11) | defines memory ordering constraints for the given atomic operation (typedef) |
| std::atomic_load(std::shared_ptr) std::atomic_load_explicit(std::shared_ptr) | specializes atomic operations for std::shared_ptr (function template) |
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