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liam0x801

liam0x801

V2EX 第 514541 号会员,加入于 2020-10-25 18:31:20 +08:00
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首先非常不建议用来[=]捕获变量,这样会导致代码的可读性变差,比较推荐的方法是用到什么就把对应的变量声明出来。

然后排查的点我认为也应该从传值的对象开始检查,要确保这些对象都是“拷贝安全”的。比如说可能引起你这个问题的一个场景是:你自己写了一个类或者用了一个别人的类,然后用 lamda 捕获,但是在传值的过程中某个对象发生了浅拷贝,最后在析构过程中对同一资源处理了两遍。
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