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Re: gawk bug in reporting formatted numbers
From: |
Hans-Bernhard Broeker |
Subject: |
Re: gawk bug in reporting formatted numbers |
Date: |
2 Aug 2005 11:43:38 GMT |
fuad badrieh <address@hidden> wrote:
> echo "0.2625e-6" | gawk 'BEGIN{OFMT="%9.3f"}{print $1*1e6}'
[...]
> The 25 should have been rounded to 3.
If it actually was 25: yes. But it isn't, as you'll find out for
yourself once you change your OFMT to %9.20f and repeat the
experiment.
> If I run the same thing through a C program it does print 0.263
> #include <stdio.h>
> int main() {
> float x=0.2625e-6;
> printf("%9.3f\n", x*1e6);
> }
Use a double, not a float, and you'll see a difference.
--
Hans-Bernhard Broeker (address@hidden)
Even if all the snow were burnt, ashes would remain.