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Re: Integers with leading zeroes

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Date Wed, 22 Jul 2015 17:27:47 +0200
From Antoon Pardon <antoon.pardon@rece.vub.ac.be>
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Subject Re: Integers with leading zeroes
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On 07/22/2015 11:09 AM, alister wrote:
> On Wed, 22 Jul 2015 09:12:59 +0200, Laura Creighton wrote:
> 
>> The biggest use I have for decimal numbers that begin with 0 is in
>> credit card numbers, account numbers and the like where the first check
>> you do is 'does this thing have the correct number of digits'.
>> So far, all the examples I've been able to find in my code -- which does
>> this sort of stuff a lot -- is looking at string versions of decimal
>> numbers, but I suspect there is old code out there in the wild which
>> just used integers.
>>
>> Laura
> 
> This type of information should be stored as a string not any type of 
> numeric format, if you are not performing maths on it then it is a string 
> & not a number.

Does the same condition hold for strings? If you are not performing string
operations on something, it is not a string?

-- 
Antoon Pardon.

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Thread

Integers with leading zeroes Steven D'Aprano <steve@pearwood.info> - 2015-07-19 15:39 +1000
  Re: Integers with leading zeroes Ian Kelly <ian.g.kelly@gmail.com> - 2015-07-18 23:46 -0600
  Re: Integers with leading zeroes "Skybuck Flying" <skybuck2000@hotmail.com> - 2015-07-19 10:19 +0200
    Re: Integers with leading zeroes Rick Johnson <rantingrickjohnson@gmail.com> - 2015-07-19 12:58 -0700
  Re: Integers with leading zeroes Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-07-21 19:21 +0200
    Re: Integers with leading zeroes sohcahtoa82@gmail.com - 2015-07-21 10:58 -0700
      Re: Integers with leading zeroes Emile van Sebille <emile@fenx.com> - 2015-07-21 11:06 -0700
        Re: Integers with leading zeroes sohcahtoa82@gmail.com - 2015-07-21 11:38 -0700
          Re: Integers with leading zeroes sohcahtoa82@gmail.com - 2015-07-21 11:41 -0700
    Re: Integers with leading zeroes Steven D'Aprano <steve@pearwood.info> - 2015-07-22 10:55 +1000
      Re: Integers with leading zeroes Chris Angelico <rosuav@gmail.com> - 2015-07-22 11:10 +1000
        Re: Integers with leading zeroes Steven D'Aprano <steve@pearwood.info> - 2015-07-22 12:14 +1000
          Re: Integers with leading zeroes Chris Angelico <rosuav@gmail.com> - 2015-07-22 14:16 +1000
          Re: Integers with leading zeroes Laura Creighton <lac@openend.se> - 2015-07-22 09:12 +0200
            Re: Integers with leading zeroes alister <alister.nospam.ware@ntlworld.com> - 2015-07-22 09:09 +0000
              Re: Integers with leading zeroes Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-07-22 17:27 +0200
                Re: Integers with leading zeroes Grant Edwards <invalid@invalid.invalid> - 2015-07-22 15:47 +0000
              Re: Integers with leading zeroes MRAB <python@mrabarnett.plus.com> - 2015-07-22 16:38 +0100
                Re: Integers with leading zeroes Grant Edwards <invalid@invalid.invalid> - 2015-07-22 15:50 +0000
                Re: Integers with leading zeroes MRAB <python@mrabarnett.plus.com> - 2015-07-22 17:24 +0100
              Re: Integers with leading zeroes Chris Angelico <rosuav@gmail.com> - 2015-07-23 08:32 +1000
          Re: Integers with leading zeroes Laura Creighton <lac@openend.se> - 2015-07-22 09:31 +0200
          Re: Integers with leading zeroes Ben Finney <ben+python@benfinney.id.au> - 2015-07-22 18:40 +1000
            Re: Integers with leading zeroes Marko Rauhamaa <marko@pacujo.net> - 2015-07-22 12:10 +0300
              Re: Integers with leading zeroes Laura Creighton <lac@openend.se> - 2015-07-22 11:38 +0200
                Re: Integers with leading zeroes Marko Rauhamaa <marko@pacujo.net> - 2015-07-22 13:26 +0300
            Re: Integers with leading zeroes Grant Edwards <invalid@invalid.invalid> - 2015-07-22 13:51 +0000
              Re: Integers with leading zeroes Rustom Mody <rustompmody@gmail.com> - 2015-07-22 07:03 -0700
              Re: Integers with leading zeroes Steven D'Aprano <steve@pearwood.info> - 2015-07-23 01:14 +1000
                Re: Integers with leading zeroes Grant Edwards <invalid@invalid.invalid> - 2015-07-22 15:20 +0000
              Re: Integers with leading zeroes Michael Torrie <torriem@gmail.com> - 2015-07-22 20:11 -0600
                Re: Integers with leading zeroes Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2015-07-24 18:23 +1200
                Re: Integers with leading zeroes Chris Angelico <rosuav@gmail.com> - 2015-07-24 16:28 +1000
                Re: Integers with leading zeroes alister <alister.nospam.ware@ntlworld.com> - 2015-07-24 13:16 +0000

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