多线程可以在不同的地方访问一个向量？ [英] Can multiple threads access a vector at different places?

问题描述

假设我有一个int的向量，我已经预先填充了100个值为0的元素。

Lets say I have a vector of int which I've prefilled with 100 elements with a value of 0.

然后我创建2个线程并告诉第一个线程用数字填充元素0到49，然后告诉线程2用数字填充元素50到99。这可以做吗？

Then I create 2 threads and tell the first thread to fill elements 0 to 49 with numbers, then tell thread 2 to fill elements 50 to 99 with numbers. Can this be done? Otherwise, what's the best way of achieving this?

感谢

推荐答案

是的，这应该很好。只要你能保证不同的线程不会修改相同的内存位置，没有问题。

Yes, this should be fine. As long as you can guarantee that different threads won't modify the same memory location, there's no problem.

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