Java数学-NaN测试 [英] Java maths - testing for NaN

问题描述

对于要导致分配NaN的任何代码，我希望具有某种项目范围的快速故障排除机制(可能是RuntimeException).

I would like to have some kind of project-wide fail fast mechanism (maybe a RuntimeException) for any code that causes assignment of NaN.

在我的项目中，NaN从来都不是有效值.

In my project NaN is never a valid value.

我意识到我可以添加断言(使用

I realise I could add asserts (using isNaN) or other tests throughout but I want to know if there is a more elegant way.

推荐答案

是的，只要将值设置为NaN，就可以使用AspectJ(面向方面​​的编程)引发错误.

Yes, you can use AspectJ (aspect oriented programming) to throw an error whenever a value is set to NaN.

本质上，您希望在设置值时进行拦截，并执行其他功能.

Essentially, you want to intercept whenever a value is set, and perform some other function.

我们已经在代码库中完成了类似的工作……但除此之外，我不能给您太多帮助.

We've done similar things in our codebase ... but I can't give you much help outside of that.

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