#48455 [Opn->Bgs]: sprintf error when multiplying float and displaying digit

From: Date: Tue, 02 Jun 2009 17:52:23 +0000
Subject: #48455 [Opn->Bgs]: sprintf error when multiplying float and displaying digit
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-137981@lists.php.net to get a copy of this message 
 ID:               48455
 Updated by:       rasmus@php.net
 Reported By:      aldo at totalaldo dot com
-Status:           Open
+Status:           Bogus
 Bug Type:         Strings related
 Operating System: FreeBSD 7.2-RELEASE
 PHP Version:      5.2.9
 New Comment:

Floating point values have a limited precision. Hence a value might 
not have the same string representation after any processing. That also
includes writing a floating point value in your script and directly 
printing it without any mathematical operations.

If you would like to know more about "floats" and what IEEE
754 is, read this:
http://docs.sun.com/source/806-3568/ncg_goldberg.html
 
Thank you for your interest in PHP.




Previous Comments:
------------------------------------------------------------------------

[2009-06-02 17:51:03] aldo at totalaldo dot com

Description:
------------
php -r 'echo sprintf("%6d", 34.98*100);'

output:  3497

Reproduce code:
---------------
php -r 'echo sprintf("%6d", 34.98*100);'


Expected result:
----------------
  3498

Actual result:
--------------
  3497


------------------------------------------------------------------------


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