From: "Ara.T.Howard" <ahoward@...>
Date: 2004-03-27T01:44:31+09:00
Subject: Re: Save to use const Regexp in several threads?

On Sat, 27 Mar 2004 nobu.nokada@softhome.net wrote:

> Hi,
> 
> At Fri, 26 Mar 2004 23:19:28 +0900,
> Robert Klemme wrote in [ruby-talk:95917]:
> > out of curiosity: is it safe to define a global constant regular
> > expression and use that concurrently from several threads?  I put together
> > a test script that seems to indicate it is safe, but a test is no definite
> > answer.
> 
> Yes if it is without `o' option or in recent version.

__without__ the 'o' - i would have thought the compile once option would be
required for this since you wouldn't want all the thread re-compiling it?

so you are saying 

 pat = %r/foo/    # right
 pat = %r/foo/o   # wrong 

 Thread.new{ pat.match s}
 Thread.new{ pat.match s}

??

-a
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