Re: Optimise adder

From	Ben Bacarisse <ben.usenet@bsb.me.uk>
Newsgroups	comp.lang.javascript
Subject	Re: Optimise adder
Date	2015-05-22 11:25 +0100
Organization	A noiseless patient Spider
Message-ID	<87pp5sj4cz.fsf@bsb.me.uk> (permalink)
References	(8 earlier) <5c25f904-8d8f-46e9-8366-d8263c30f23a@googlegroups.com> <87fv6pjzn2.fsf@bsb.me.uk> <81ccaab4-6fe5-47da-b626-3f3fe11b9829@googlegroups.com> <87vbflhroi.fsf@bsb.me.uk> <b18f88ed-432c-4e53-b7d6-19cd8ade7c93@googlegroups.com>

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jonas.thornvall@gmail.com writes:

> Den fredag 22 maj 2015 kl. 11:45:06 UTC+2 skrev Ben Bacarisse:
>> jonas.thornvall@gmail.com writes:
>> 
>> > Den fredag 22 maj 2015 kl. 01:10:16 UTC+2 skrev Ben Bacarisse:
>> >> jonas.thornvall@gmail.com writes:
>> >> 
>> >> > Den torsdag 21 maj 2015 kl. 22:40:50 UTC+2 skrev Ben Bacarisse:
>> >> >> jonas.thornvall@gmail.com writes:
>> >> >> 
>> >> >> > Den torsdag 21 maj 2015 kl. 21:03:40 UTC+2 skrev Ben Bacarisse:
>> >> >> >> jonas.thornvall@gmail.com writes:
>> >> >> >> 
>> >> >> >> > Den torsdag 21 maj 2015 kl. 18:04:22 UTC+2 skrev Ben Bacarisse:
>> >> >> >> >> jonas.thornvall@gmail.com writes:
>> >> <snip>
>> >> >> >> >> > It permit anybase, but you have to format your number
>> >> >> >> >> > into that base
>> >> >> >> >> > Before feeding the function, try base two.
>> >> >> >> >> 
>> >> >> >> >> The code you posted does not permit any base.
>> >> >> >> >
>> >> >> >> > Not true, here i changed base same code, different number format.
>> >> >> >> 
>> >> >> >> Yes, true.  Here's a test case for you:
>> >> >> >> 
>> >> >> >>   base=9007199254740992;
>> >> >> >>   var arrOne = [base-1];
>> >> >> >>   var arrTwo = [2];
>> >> <snip>
>> >> > Yes i did and i got 1,1 in any brwoser.
>> >> 
>> >> I'm having a hard time believing you.  Partly because you've posted two
>> >> examples that *look* similar but are, in fact, different (so maybe you
>> >> have a typo somewhere in your test), partly because I've just tried
>> >> another two implementations and I can't get anything but [0,1] in any of
>> >> them, but mostly because I know how ECMAScript Numbers are defined so I
>> >> know how these numbers get processed by your function.
>> >> 
>> >> > For your example, except you do apparently wrong when defining
>> >> > arrOne base-1.  Try arrOne = [9007199254740991]
>> >> 
>> >> Yes, I did that.  Two command-line implementations and (now) five
>> >> browsers all gave the same incorrect result.  Put your test case
>> >> (i.e. for base = 9007199254740992, arrOne = [9007199254740991] and
>> >> arrTwo = [2]) on a public page and I'll try it with the browsers I have.
>> <snip>
>> 
>> > Iexplorer, firefox and Chrome all give the correct answer 1,1
>> 
>> Yes, of course.  That's not the test case I gave you.
>> 
>> > http://jt.node365.se/add.html
>> 
>> I was right not to believe you and I am not 100% sure it was a genuine
>> mistake.
>> 
>> -- 
>> Ben.
>
> What to you mean do you suggest that, my function responsible for
> base-1 in your definition of the array? That must be javascript doing
> something weird not the function or?  I do not think i understand what
> you mean, please clarify?

I posted an example base that does not work.  You copied it incorrectly
and claimed my example was wrong, when the error was in your copying.

> If it bugs out on base - 1 but not on var arrOne = [900719925474091];
> it certainly can not be because of the function?
>
> base=900719925474092;

That was not the base I gave you.  I wrote: base=9007199254740992.

> var arrOne = [900719925474091]; //Is different from base-1?

I suggested 9007199254740991 and you actually said that you have tried
that number but the code posted today used this other number.

> var arrTwo = [2];

-- 
Ben.

Thread

Optimise adder jonas.thornvall@gmail.com - 2015-05-21 07:19 -0700
  Re: Optimise adder Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-05-21 16:01 +0100
    Re: Optimise adder jonas.thornvall@gmail.com - 2015-05-21 08:43 -0700
    Re: Optimise adder jonas.thornvall@gmail.com - 2015-05-21 08:54 -0700
      Re: Optimise adder Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-05-21 17:04 +0100
        Re: Optimise adder jonas.thornvall@gmail.com - 2015-05-21 09:13 -0700
          Re: Optimise adder Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-05-21 20:01 +0100
            Re: Optimise adder jonas.thornvall@gmail.com - 2015-05-21 12:39 -0700
              Re: Optimise adder Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-05-21 21:43 +0100
            Re: Optimise adder jonas.thornvall@gmail.com - 2015-05-21 12:52 -0700
              Re: Optimise adder Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-05-21 21:40 +0100
                Re: Optimise adder jonas.thornvall@gmail.com - 2015-05-21 14:30 -0700
                Re: Optimise adder Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-05-22 00:10 +0100
                Re: Optimise adder jonas.thornvall@gmail.com - 2015-05-21 23:20 -0700
                Re: Optimise adder Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-05-22 10:45 +0100
                Re: Optimise adder jonas.thornvall@gmail.com - 2015-05-22 02:56 -0700
                Re: Optimise adder Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-05-22 11:25 +0100
                Re: Optimise adder jonas.thornvall@gmail.com - 2015-05-22 04:37 -0700
                Re: Optimise adder Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-05-22 13:21 +0100
                Re: Optimise adder Denis McMahon <denismfmcmahon@gmail.com> - 2015-05-22 18:14 +0000
                Re: Optimise adder jonas.thornvall@gmail.com - 2015-05-21 23:24 -0700
                Re: Optimise adder jonas.thornvall@gmail.com - 2015-05-22 01:18 -0700
                Re: Optimise adder Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-05-22 10:41 +0100
                Re: Optimise adder jonas.thornvall@gmail.com - 2015-05-22 02:52 -0700
                Re: Optimise adder Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-05-22 13:17 +0100
                Re: Optimise adder jonas.thornvall@gmail.com - 2015-05-22 05:59 -0700
                Re: Optimise adder Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-05-22 17:37 +0100
                Re: Optimise adder Denis McMahon <denismfmcmahon@gmail.com> - 2015-05-22 18:17 +0000
                Re: Optimise adder jonas.thornvall@gmail.com - 2015-05-22 12:58 -0700
                Re: Optimise adder "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-05-23 00:08 +0200
                Re: Optimise adder Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-05-22 10:38 +0100
      Re: Optimise adder jonas.thornvall@gmail.com - 2015-05-21 09:05 -0700
        Re: Optimise adder Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-05-21 20:03 +0100
  Re: Optimise adder "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-05-21 22:51 +0200
    Re: Optimise adder jonas.thornvall@gmail.com - 2015-05-21 15:26 -0700
      Re: Optimise adder "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-05-22 13:40 +0200
      Re: Optimise adder Scott Sauyet <scott.sauyet@gmail.com> - 2015-05-26 06:20 -0700
        Re: Optimise adder jonas.thornvall@gmail.com - 2015-06-06 04:01 -0700
          Re: Optimise adder jonas.thornvall@gmail.com - 2015-06-06 04:09 -0700
            Re: Optimise adder jonas.thornvall@gmail.com - 2015-06-06 04:15 -0700
              Re: Optimise adder jonas.thornvall@gmail.com - 2015-06-06 05:33 -0700

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