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Re: Customizing printf

Cross-posted to 2 groups.

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In article <98791897-ac7d-4e5a-a528-7c2d543e1ed8@x7g2000yqb.googlegroups.com>,
Nick Keighley  <nick_keighley_nospam@hotmail.com> wrote:
>how many parameters do fputint() and fputdouble() have?

    int fputint(FILE *fp, int val, int wid, int opt);
    int fputdouble(FILE *fp, double val, int wid, int dp, int opt);

[C++]

>try printing a four digit hexadecimal number. Or a double with 3
>significant digits. You can do thse things but they're awkward,

When i first saw this wacky crap, i thought 'is this a joke?' and then
'is this someone's idea of good design?'.

But note that all the problems come from assuming that the input/output
functions have two arguments, which is just wrong.  For example, i
rarely see a 'double' printed with a bare "%f"; the format is as
important as the value.

And if you write 'fputint' and someone says 'that's decimal!  i need
octal!' you say, well here you go:

    int fputdecint(...);
    int fputoctint(...);
    int fputhexint(...);

Or just use the 'opt' thingy i gave above.

The problem is that all the functions are called "<<"; so you have the
type to split on, but that's really not sufficient.

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Thread

Customizing printf jacob navia <jacob@spamsink.net> - 2011-11-15 14:36 +0100
  Re: Customizing printf "Joel C. Salomon" <joelcsalomon@gmail.com> - 2011-11-15 13:07 -0500
  Re: Customizing printf Ben Pfaff <blp@cs.stanford.edu> - 2011-11-15 10:10 -0800
    Re: Customizing printf jacob navia <jacob@spamsink.net> - 2011-11-15 21:36 +0100
      Re: Customizing printf blp@cs.stanford.edu (Ben Pfaff) - 2011-11-15 12:51 -0800
        Re: Customizing printf "Joel C. Salomon" <joelcsalomon@gmail.com> - 2011-11-15 18:03 -0500
    Re: Customizing printf jgk@panix.com (Joe keane) - 2011-11-20 15:14 +0000
      Re: Customizing printf blp@cs.stanford.edu (Ben Pfaff) - 2011-11-20 10:43 -0800
        Re: Customizing printf Lauri Alanko <la@iki.fi> - 2011-11-20 19:01 +0000
          Re: Customizing printf blp@cs.stanford.edu (Ben Pfaff) - 2011-11-20 11:05 -0800
            Re: Customizing printf Dag-Erling Smørgrav <des@des.no> - 2011-11-20 20:38 +0100
              Re: Customizing printf blp@cs.stanford.edu (Ben Pfaff) - 2011-11-20 11:37 -0800
        Re: Customizing printf jgk@panix.com (Joe keane) - 2011-11-21 22:23 +0000
          Re: Customizing printf Ian Collins <ian-news@hotmail.com> - 2011-11-22 11:26 +1300
          Re: Customizing printf blp@cs.stanford.edu (Ben Pfaff) - 2011-11-21 14:23 -0800
          Re: Customizing printf Kaz Kylheku <kaz@kylheku.com> - 2011-11-21 23:06 +0000
            Re: Customizing printf jgk@panix.com (Joe keane) - 2011-11-23 00:09 +0000
              Re: Customizing printf blp@cs.stanford.edu (Ben Pfaff) - 2011-11-22 16:16 -0800
      Re: Customizing printf Nick Keighley <nick_keighley_nospam@hotmail.com> - 2011-11-21 05:29 -0800
        Re: Customizing printf jgk@panix.com (Joe keane) - 2011-11-21 22:50 +0000
  Re: Customizing printf Lowell Gilbert <lgusenet@be-well.ilk.org> - 2011-11-15 13:13 -0500
  Re: Customizing printf "-.-" <none@none.none> - 2011-11-16 14:06 +0100
    Re: Customizing printf gazelle@shell.xmission.com (Kenny McCormack) - 2011-11-16 13:40 +0000
    Re: Customizing printf Seebs <usenet-nospam@seebs.net> - 2011-11-16 20:18 +0000
      Re: Customizing printf Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2011-11-17 07:54 +0200

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