存储指针向量的最佳C ++ 11方法 [英] best c++11 way to store a vector of pointers

问题描述

我要存储std::threads

当前，我将其实现为std::vector<std::thread*> 但是，这需要手动删除std::thread s

Currently, I implemented it as std::vector<std::thread*> However, this requires manually deleting the std::threads

最优雅的c ++ 11方法是什么?我可以看到std::shared_ptr，但这不是一个过分的杀伤力吗?指针是唯一的，但是std::vector需要临时复制它们.

What would be the most elegant c++11 way to do this? I could see std::shared_ptr, but isn't it an overkill? The pointers are unique, but std::vector needs to copy them temporarily.

也许我不需要指针，但是std::thread是不可复制的，我想是.

Maybe I do not need pointers, but std::thread being non copyable, I think I do.

谢谢！

推荐答案

自C ++ 11起，vector仅要求其值是可移动的，就像thread一样.因此vector<thread>应该可以满足您的需求.

Since C++11, vector only requires that its values are movable, as thread is. So vector<thread> should meet your needs.

对于不可复制类型的操作有一些限制-您不能将值复制进出或复制出来，只能移动或放置它们-但是这些易于容纳.

There are a few restrictions on what you can do with non-copyable types - you can't copy values in or out, only move or emplace them - but these are easy to accommodate.

如果确实需要存储不可移动的类型(例如，mutex)，则unique_ptr可能是最佳选择；或不需要移动其值的容器，例如deque或list.

If you did need to store unmovable types (mutex, for example), then unique_ptr is probably the best option; or a container like deque or list that doesn't need to move its values.

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