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Re: sscanf question

From "BartC" <bc@freeuk.com>
Newsgroups comp.lang.c
References <ad54f74d-a4fe-42eb-a8e3-32a0597bd226@googlegroups.com> <kade97$lta$2@blue-new.rahul.net> <65867183-4a71-4bdd-8e2d-7301aba0da00@googlegroups.com> <74e828e9-5f56-491d-b010-a5dd0cb4bd13@googlegroups.com> <4be7ce8b-cc02-44e5-8824-246b832fd21f@googlegroups.com>
Subject Re: sscanf question
Message-ID <p_sys.509618$Wc4.426891@fx10.am4> (permalink)
Organization virginmedia.com
Date 2012-12-13 22:51 +0000

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"Fred K" <fred.l.kleinschmidt@gmail.com> wrote in message
news:4be7ce8b-cc02-44e5-8824-246b832fd21f@googlegroups.com...
> On Thursday, December 13, 2012 2:31:41 PM UTC-8, Fred K wrote:
>> On Thursday, December 13, 2012 1:40:58 PM UTC-8, Prathamesh Kulkarni
>> wrote: >
>> Please could you suggest some better ways than float/double to represent
>> monetary amounts ? Thanks ;) > > > -- > > -Ed Falk, falk@despams.r.us.com
>>  > > http://thespamdiaries.blogspot.com/
>
> Integer times 100 - i.e., in integer units of the smallest unit in the
> monetary system.
>
> So $1.23 is stored as 123
>
> The reason is to avoid roundoff and truncation errors.

You still get problems when doing calculations (there are remainders to take
care of).

Floating point is workable if you know that an amount might be meant to
represent a whole number of cents for example. Or you can use floating
point to represent cents rather than dollars ...

-- 
Bartc

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Thread

sscanf question "Brian O'Brien" <bjobrien62@gmail.com> - 2012-12-12 13:29 -0800
  Re: sscanf question "BartC" <bc@freeuk.com> - 2012-12-12 21:43 +0000
  Re: sscanf question James Kuyper <jameskuyper@verizon.net> - 2012-12-12 16:52 -0500
  Re: sscanf question Les Cargill <lcargill99@comcast.com> - 2012-12-12 22:14 -0600
    Re: sscanf question Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-12-13 14:03 +0000
  Re: sscanf question falk@rahul.net (Edward A. Falk) - 2012-12-13 20:36 +0000
    Re: sscanf question Prathamesh Kulkarni <bilbotheelffriend@gmail.com> - 2012-12-13 13:40 -0800
      Re: sscanf question Fred K <fred.l.kleinschmidt@gmail.com> - 2012-12-13 14:31 -0800
        Re: sscanf question Fred K <fred.l.kleinschmidt@gmail.com> - 2012-12-13 14:33 -0800
          Re: sscanf question "BartC" <bc@freeuk.com> - 2012-12-13 22:51 +0000
            Re: sscanf question Keith Thompson <kst-u@mib.org> - 2012-12-13 15:45 -0800
              Re: sscanf question glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-12-14 00:06 +0000
              Re: sscanf question "BartC" <bc@freeuk.com> - 2012-12-14 02:33 +0000
                Re: sscanf question glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-12-14 03:25 +0000
                Re: sscanf question "BartC" <bc@freeuk.com> - 2012-12-14 11:50 +0000
                Re: sscanf question glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-12-14 12:19 +0000
                Re: sscanf question "BartC" <bc@freeuk.com> - 2012-12-14 13:38 +0000
                Re: sscanf question glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-12-14 20:40 +0000
                Re: sscanf question Nick Keighley <nick_keighley_nospam@hotmail.com> - 2012-12-16 03:34 -0800
          Re: sscanf question falk@rahul.net (Edward A. Falk) - 2012-12-15 03:28 +0000
            Re: sscanf question Les Cargill <lcargill99@comcast.com> - 2012-12-14 22:41 -0600
              Re: sscanf question Keith Thompson <kst-u@mib.org> - 2012-12-15 01:25 -0800
                Re: sscanf question glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-12-15 10:26 +0000
                Re: sscanf question Les Cargill <lcargill99@comcast.com> - 2012-12-15 13:24 -0600
                Re: sscanf question glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-12-15 20:15 +0000
                Re: sscanf question Les Cargill <lcargill99@comcast.com> - 2012-12-15 15:33 -0600
                [OT] Re: sscanf question Eric Sosman <esosman@comcast-dot-net.invalid> - 2012-12-15 17:49 -0500
                Re: [OT] Re: sscanf question glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-12-16 00:16 +0000
            Re: sscanf question Barry Schwarz <schwarzb@dqel.com> - 2012-12-14 21:28 -0800
            Re: sscanf question glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-12-15 08:17 +0000
      Re: sscanf question Eric Sosman <esosman@comcast-dot-net.invalid> - 2012-12-13 18:22 -0500
  Re: sscanf question "Brian O'Brien" <bjobrien62@gmail.com> - 2012-12-13 21:13 -0800
    Re: sscanf question Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-12-14 12:25 +0000

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