Groups > comp.lang.java.programmer > #4294

Re: About using assertion

From	Michal Kleczek <kleku75@gmail.com>
Newsgroups	comp.lang.java.programmer
Subject	Re: About using assertion
Date	2011-05-19 15:16 +0200
Organization	http://onet.pl
Message-ID	<ir3587$dc9$1@news.onet.pl> (permalink)
References	(2 earlier) <iq93mt$7ob$1@news.albasani.net> <92r0e9F6lvU1@mid.individual.net> <sjmea8-067.ln1@tmcd-linux-p4.austin.tx.us> <ir2dmk$4vm$1@news.onet.pl> <ir33ei$c4p$2@news.albasani.net>

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Lew wrote:

> 
> That is wrong.  That needs to be checked with an 'if' if 'NaN' is not a
> legitimate input.  'assert' is not meant to correct things, only to make
> sure

I totally agree with you.

> that the correction is documented and proven.  If 'assert' is turned off
> in production, you still have the bug if you use 'assert' as the only
> guard.

I was imprecise - just wanted to praise an example of "having confidence" 
being sooo wrong and how having assertions (even though they look redundant) 
_may_ help you.

-- 
Michal

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About using assertion byhesed <byhesed@gmail.com> - 2011-05-09 07:36 -0700
  Re: About using assertion Robert Klemme <shortcutter@googlemail.com> - 2011-05-09 08:24 -0700
    Re: About using assertion Roedy Green <see_website@mindprod.com.invalid> - 2011-05-09 09:01 -0700
      Re: About using assertion Lew <noone@lewscanon.com> - 2011-05-09 12:11 -0400
        Re: About using assertion Robert Klemme <shortcutter@googlemail.com> - 2011-05-09 22:17 +0200
          Re: About using assertion Lew <noone@lewscanon.com> - 2011-05-09 18:49 -0400
            Re: About using assertion Robert Klemme <shortcutter@googlemail.com> - 2011-05-10 07:23 +0200
            Re: About using assertion Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2011-05-10 06:45 -0300
              Re: About using assertion Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-05-10 13:29 +0000
                Re: About using assertion Lew <noone@lewscanon.com> - 2011-05-10 11:21 -0400
                Re: About using assertion Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-05-10 16:01 +0000
                Re: About using assertion RedGrittyBrick <RedGrittyBrick@spamweary.invalid> - 2011-05-10 17:26 +0100
                Re: About using assertion Lew <noone@lewscanon.com> - 2011-05-10 13:25 -0400
                Re: About using assertion Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2011-05-10 21:15 +0200
          Re: About using assertion tmcd@tmcd-p4-linux.austin.tx.us (Tim McDaniel) - 2011-05-19 00:32 -0500
            Re: About using assertion Michal Kleczek <kleku75@gmail.com> - 2011-05-19 08:34 +0200
              Re: About using assertion Lew <noone@lewscanon.com> - 2011-05-19 08:46 -0400
                Re: About using assertion Michal Kleczek <kleku75@gmail.com> - 2011-05-19 15:16 +0200
                Re: About using assertion Lew <noone@lewscanon.com> - 2011-05-19 09:38 -0400
                Re: About using assertion Robert Klemme <shortcutter@googlemail.com> - 2011-05-19 07:41 -0700
                Re: About using assertion Lew <noone@lewscanon.com> - 2011-05-19 11:00 -0400
            Re: About using assertion Patricia Shanahan <pats@acm.org> - 2011-05-19 05:52 -0700
              Re: About using assertion tmcd@tmcd-p4-linux.austin.tx.us (Tim McDaniel) - 2011-05-21 18:37 -0500
                Re: About using assertion Patricia Shanahan <pats@acm.org> - 2011-05-21 19:00 -0700
                Re: About using assertion Lew <noone@lewscanon.com> - 2011-05-22 01:19 -0400
  Re: About using assertion Lew <noone@lewscanon.com> - 2011-05-09 11:35 -0400
  Re: About using assertion markspace <-@.> - 2011-05-09 11:40 -0700
    Re: About using assertion Lew <noone@lewscanon.com> - 2011-05-09 14:53 -0400

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