如何测试最新版本的MATLAB? [英] How to test for recent-enough version of MATLAB?

问题描述

我要实现的功能需要知道MATLAB的当前版本是否至少是最新的R2014a.

A function I want to implement needs to know whether the current version of MATLAB is at least as recent as R2014a.

是否存在受支持的强大方式来执行此检查?

Is there a robust, supported way to perform this check?

(具有强大，受支持" 的意思是说，我对脆弱的hack(例如，解析由版本返回的字符串等)不感兴趣.

(With "robust, supported" I mean to say that I'm not interested in fragile hacks such as parsing the string returned by version, etc.)

_{BTW，在这种情况下，我想要进行此检查的原因是要知道我可以使用功能matlab.lang.makeUniqueStrings.如果有一种可靠，受支持的方法来检查此功能的可用性，我将使用它来代替测试当前的MATLAB是否足够.不幸的是，似乎没有这样的检查:exist对我可以为该函数的名称提供的每个变体都返回false.再说一次，我可以想到脆弱的骇客模仿一个适当的测试(例如which('matlab.lang.makeUniqueStrings'))，但是它们并没有比我上面提到的版本测试骇客更好.}

_{BTW, in this case, the reason I want this check is to know that I can use the function matlab.lang.makeUniqueStrings. If there were a robust, supported way to check for the availability of this function, I'd use it instead of testing that the current MATLAB is recent enough. Unfortunately, there doesn't seem to be such a check: exist returns false to every variant I can come up for the name of this function. Again, I can think of fragile hacks to mimic a proper test (e.g. which('matlab.lang.makeUniqueStrings')), but they're hardly better than the version-testing hacks I alluded to above.}

_{我发现的最佳解决方案是在try-catch块中使用matlab.lang.makeUniqueStrings运行命令.这仍然是一个脆弱的技巧，因为MATLAB不能提供一种强大的内置方式来捕获特定的异常！}

_{The best solution I have found is to run the command using matlab.lang.makeUniqueStrings within a try-catch block. This is still a fragile hack, because MATLAB does not offer a robust, built-in way to catch specific exceptions!}

_{IOW，这都是关于选择最不可怕的黑客.测试当前版本是否足够新(即使此测试是易碎的hack)，至少具有足够通用的优点，可以坚持某些功能，并且至少包含易碎的hacky代码的泛滥.}

推荐答案

我会使用 verLessThan 函数:

I would use the verLessThan function:

verLessThan('matlab', '8.3')

如果您使用的当前版本早于8.3(R2014a)，则返回true(1)，否则返回false(0).无需字符串解析.

This will return true (1) if the current version you are using is older than 8.3 (R2014a) and false (0) otherwise. No string parsing required.

然后您可以像这样使用它:

You could then use it like so:

if ~verLessThan('matlab', '8.3')
  % Run code using matlab.lang.makeUniqueStrings
end

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