From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <3e1162e60809100821h158e55fdo89c3c7f61099bd13@mail.gmail.com>
Date: Wed, 10 Sep 2008 08:21:46 -0700
From: "David Leimbach" <leimy2k@gmail.com>
To: "Fans of the OS Plan 9 from Bell Labs" <9fans@9fans.net>
In-Reply-To: <13426df10809100638s4680e934gca40c7cffcdfae4b@mail.gmail.com>
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References: <55D86CE8-C424-4C7C-9748-84AA62D3F2A4@ar.aichi-u.ac.jp>
	<13426df10809100638s4680e934gca40c7cffcdfae4b@mail.gmail.com>
Subject: Re: [9fans] test command
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On Wed, Sep 10, 2008 at 6:38 AM, ron minnich <rminnich@gmail.com> wrote:

> On Wed, Sep 10, 2008 at 3:19 AM, Kenji Arisawa <arisawa@ar.aichi-u.ac.jp>
> wrote:
> > Hello,
> >
> > "test" command of plan 9 has a operator "older", the usage is:
> >        test f -older t
> > where f is a file and t is a time.
> > however the command does not have "newer" operator.
> > why?
> >
>
> If a < b, and you want to know if b > a, can't you just do a < b?
>
> ron
>
>
Yeah with < and ! you can build anything you want :-)

Hence why many C++ STL comparisons just require you to make a functor for
less.

Dave

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<div dir="ltr"><br><br><div class="gmail_quote">On Wed, Sep 10, 2008 at 6:38 AM, ron minnich <span dir="ltr">&lt;<a href="mailto:rminnich@gmail.com">rminnich@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div><div></div><div class="Wj3C7c">On Wed, Sep 10, 2008 at 3:19 AM, Kenji Arisawa &lt;<a href="mailto:arisawa@ar.aichi-u.ac.jp">arisawa@ar.aichi-u.ac.jp</a>&gt; wrote:<br>
&gt; Hello,<br>
&gt;<br>
&gt; &quot;test&quot; command of plan 9 has a operator &quot;older&quot;, the usage is:<br>
&gt; &nbsp; &nbsp; &nbsp; &nbsp;test f -older t<br>
&gt; where f is a file and t is a time.<br>
&gt; however the command does not have &quot;newer&quot; operator.<br>
&gt; why?<br>
&gt;<br>
<br>
</div></div>If a &lt; b, and you want to know if b &gt; a, can&#39;t you just do a &lt; b?<br>
<font color="#888888"><br>
ron<br>
<br>
</font></blockquote></div><br><div>Yeah with &lt; and ! you can build anything you want :-)</div><div><br></div><div>Hence why many C++ STL comparisons just require you to make a functor for less.</div><div><br></div><div>
Dave</div></div>

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