order of atom var

文章解释了std::memory_order_acquire在存储操作中的效果等同于std::memory_order_relaxed,因为前者只影响加载,而存储操作不涉及。反之,std::memory_order_release在加载操作时等同于std::memory_order_relaxed,因它只控制存储。作者对某些开发者不能理解这个简单的规则表示疑惑。

摘要生成于 C知道 ,由 DeepSeek-R1 满血版支持, 前往体验 >

remember this : 

std::memory_order_acquire with a store operation is equivalent to std::memory_order_relaxed

std::memory_order_release with a load operation is equivalent to std::memory_order_relaxed

In practice, using std::memory_order_acquire with a store operation is equivalent to std::memory_order_relaxed because std::memory_order_acquire only orders loads but a store operation doesn’t load anything. Similarly, using std::memory_order_release with a load operation is equivalent to std::memory_order_relaxed because std::memory_order_release only orders stores but a load operation doesn’t store anything.

not know why so many or almost all motherfxcker "big tech guy" can not say the very simple rule. 

评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值