From: Zev Blut <rubyzbibd@...>
Date: 2004-10-28T17:58:26+09:00
Subject: Re: Mysterious Date Parsing Failures: NaN

Hello Curt,

On Thu, 28 Oct 2004 17:23:59 +0900, Curt Sampson <cjs@cynic.net> wrote:

> [ Snip description of Date parsing error ]
>
> Here's the stacktrace, in this case I did a "Date.new(2003, 4, 11)":
>
>     Exception: Couldn't parse date 2003-4-11 (11/Apr/2003): NaN
>     /usr/local/lib/ruby/1.8/date.rb:300:in `floor'
>     /usr/local/lib/ruby/1.8/date.rb:300:in `civil_to_jd'
>     /usr/local/lib/ruby/1.8/date.rb:568:in `valid_civil?'
>     /usr/local/lib/ruby/1.8/date.rb:590:in `new'
>     ./HttpLogRecord.rb:83:in `parse_apache_date'
>     ./HttpLogRecord.rb:36:in `parse'
>     ...
>
> This happens both with 1.8.1 and 1.8.2preview2. Any thoughts?

That is quite odd, I cannot recreate it on my machine. Although,
digging through the source code makes me think it might be a C library
issue with your "math.h" implementation.  Granted I am nowhere close
to knowledgeable when it comes to this level of detail.  So in order
to help the ones in the know;  What is your output when you type
"ruby -v" ?

Best,
Zev