c ++ 11等同于java atomiclongarray [英] c++ 11 equivalent of java atomiclongarray

问题描述

我正在使用Java库的C ++端口。其中一个问题是我不能找到等同于Java的AtomicLongArray。任何人都知道在c ++ 11中有什么已经等同的东西，或者如何实现类似的功能？我看看C ++ 11原子，但没有找到任何东西。

I am working on a C++ port of a Java library. One of the problems is I am not able to find equivalent of Java's AtomicLongArray. Anyone knows if there is anything already equivalent in c++ 11 or how to implement similar functionality? I had a look at C++11 atomics but could not find anything.

推荐答案

AtomicLongArray 说：

一个长数组，其中元素可能原子地更新。有关原子变量属性的描述，请参阅 java.util.concurrent.atomic 包规范。

这听起来像一个简单的数组 std :: atomic< long> ：

That sounds to me like a simple array of std::atomic<long>:

std::array<std::atomic<long>, N> array;
// or, if size is not known at compile time
std::vector<std::atomic<long>> vector(n);

请注意，只有元素是原子的，容器本身不是，所以不要绕过 push_back 进入向量。

Note that only the elements are atomic, the container itself isn't, so don't go around push_backing into the vector.

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