ID:               34294
 Updated by:       [EMAIL PROTECTED]
 Reported By:      moerel at gmail dot com
 Status:           Bogus
 Bug Type:         *Math Functions
 Operating System: Linux
 PHP Version:      5.0.4
 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:
------------------------------------------------------------------------

[2005-08-29 13:41:10] [EMAIL PROTECTED]

Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php



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

[2005-08-29 13:35:53] moerel at gmail dot com

Description:
------------
I found some strange behaviour while casting a float to integer. It
looks like something gets rounded in a strange way while casting.



Reproduce code:
---------------
<?
        $fltTest = 9.95;

        print ($fltTest * 100) . '<BR>';
        print round($fltTest * 100) . '<BR>';
        print (int)($fltTest * 100) . '<BR>';
?>


Expected result:
----------------
995
995
995


Actual result:
--------------
995
995
994



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


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