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Subject: Re: double == double
Date: Sun, 16 Oct 2016 14:06:29 +0100
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On 16/10/2016 13:37, Eric Sosman wrote:

[...]
>     ... and *still* get the wrong answer!

You did not get my point.

Those subparts have to be converted to *integers* and compared as such, 
not compared as string. If I know the semantics of a version number, I 
know how to compare it to another version number. No matter how silly 
your version format is: if I know that a '@' means newer and '#' means 
older, than I'll have a version comparator that takes that into account.

 > That is, plain String comparison is inadequate for checking complete
 > version numbers

See above: plain string comparison is *not* what I am talking about.

Again: saying that strings are not a good idea to store dates or 
versions, just because you cannot compare dates or versions as strings 
is a flawed argument. If you expect a date in the form dd/mm/yyyy you 
need a specific comparator. If you expect a version in the form 
major.minor.update-build, you need a specific comparator.

Let me remind you that the original argument was: "I don't think that 
double nor String are good choices for version numbers"

That's illogical. Strings are a good choice for version numbers as well 
as they are for dates.

-- 
4ndre4