#39425 [NEW]: Specific BUG in DOUBLE mathematics!!!
From: jvano at read dot sk
Operating system: Irrelevant (All)
PHP version: 5.2.0
PHP Bug Type: *General Issues
Bug description: Specific BUG in DOUBLE mathematics!!!
Description:
------------
Problem is in all versions of PHP.
Problem is in basic mathematic operation (+/-) wiht double. When I use
simple values and make some basic operation, for example (5.7 - (1.4 +
4.3)).
This problem is in another combinations but not in all.
Reproduce code:
---------------
<?php
echo (5.7 - (1.4 + 4.3));
?>
Expected result:
----------------
In all cases is expected 0(zero). But result is always +/-
8.881784197E-016.
Actual result:
--------------
I think that problem is in representation of double value.
--
Edit bug report at http://bugs.php.net/?id=39425&edit=1
--
Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=39425&r=trysnapshot44
Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=39425&r=trysnapshot52
Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=39425&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=39425&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=39425&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=39425&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=39425&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=39425&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=39425&r=support
Expected behavior: http://bugs.php.net/fix.php?id=39425&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=39425&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=39425&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=39425&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=39425&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=39425&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=39425&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=39425&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=39425&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=39425&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=39425&r=mysqlcfg
Thread (3 messages)
- jvano at read dot sk