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Article #1371

Warnings and %-sequences

#1371
From: Henry Flurry
Date: Wed, 11 Nov 1992 18:30
47 lines
1774 bytes
The program below generates the following warnings on NeXT's 3.0 compiler:

  stuff.c: In function `main':
  stuff.c:17: warning: precision and `0' flag both used in one %-sequence
  stuff.c:17: warning: precision and `0' flag both used in one %-sequence
  stuff.c:17: warning: precision and `0' flag both used in one %-sequence
  stuff.c:17: warning: precision and `0' flag both used in one %-sequence
  stuff.c:17: warning: precision and `0' flag both used in one %-sequence

a) I don't have gcc2.3.  Does it make these warnings?

b) I don't understand the purpose of these warnings in my usage of the %f  
sequence, although I see a potential purpose for them in a %d sequence.   
Am I missing something?

c) If the warnings are valid, is there another way to code my %f sequence  
so that I achieve the same results but don't get the warning?  (I want a  
minimum of an XX.XX field, zero padded, with the ability to have the left  
side expand)

- Thanks!

- Henry Flurry


### BEGIN ###

    /*
    **    File: stuff.c
    ** Compile: cc -Wall stuff.c -o stuff
    **     Run: stuff
    */

#include <stdio.h>

int main(void)
{
    printf("%05.2f\t%05.2f\t%05.2f\t%05.2f\t%05.2f\n",
    		(double)1.2,
		(double)12.3,
		(double)192834.39,
		(double)0.004,
		(double)10.01);
    return 0;
}

### END ###
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Path: arc1-ca.pugleaf.net!sparky!uunet!convex!darwin.sura.net!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!imagine.COM!henryf

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Path: arc1-ca.pugleaf.net!sparky!uunet!convex!darwin.sura.net!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!imagine.COM!henryf
From: henryf@imagine.COM (Henry Flurry)
Subject: Warnings and %-sequences
Message-ID: <9211120430.AA10175@_imagine.com>
Sender: gnulists@ai.mit.edu
Organization: GNUs Not Usenet
Distribution: gnu
Date: Wed, 11 Nov 1992 18:30:10 GMT
Approved: bug-gcc@prep.ai.mit.edu
Lines: 49