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gawk bug in reporting formatted numbers


From: fuad badrieh
Subject: gawk bug in reporting formatted numbers
Date: Mon, 01 Aug 2005 18:29:20 -0700
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax)

Hello:

how come the following program

echo "0.2625e-6" | gawk 'BEGIN{OFMT="%9.3f"}{print $1*1e6}'

prints

0.262

and not 0.263?  The 25 should have been rounded to 3.

I am using gawk 3.0, patchlevel 0, on SunOS 5.8.



P.S
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);
}

Thanks,
Fuad







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