std::atomic::load
时间: 2023-09-18 13:10:54 浏览: 113
浅谈关于C++memory_order的理解
std::atomic::load是一个成员函数,用于获取std::atomic对象的当前值。它接受一个可选的std::memory_order参数来指定内存访问顺序,默认值为std::memory_order_seq_cst,即顺序一致的内存顺序。
该函数返回一个T类型的值,表示std::atomic对象的当前值。这个操作是原子的,意味着在多线程环境中,其他线程不能同时修改或访问该std::atomic对象的值。
注意,std::atomic::load本身是线程安全的,并不需要额外的同步机制来保证原子性。它可以在多个线程之间安全地读取std::atomic对象的值。
引用:std::atomic<T>::load定义 T load( std::memory_order order = std::memory_order_seq_cst ) const noexcept; 。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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