#44255 [NEW]: floating point result 0.0:
| From: | php at jelmer dot cc | Date: | Tue, 26 Feb 2008 17:58:53 +0000 |
| Subject: | #44255 [NEW]: floating point result 0.0: | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-122723@lists.php.net to get a copy of this message | ||
From: php at jelmer dot cc
Operating system: Linux
PHP version: 5.2.5
PHP Bug Type: Math related
Bug description: floating point result 0.0:
Description:
------------
Linux version 2.6.22-3-686 (Debian 2.6.22-6) (maks@debian.org) (gcc
version 4.1.3 20071019 (prerelease) (Debian 4.1.2-17)) #1 SMP Mon Nov 12
08:32:57 UTC 2007
PHP (PHP 5.2.5-2 with Suhosin-Patch 0.9.6.2 (cli) (built: Feb 1 2008
21:17:20)) returns a rather strange result for a certain mathematical
expression. Also, the weird result is only returned in very specific
cases:
php> = (0.005 + 0.002/3 + 0.194 + 0.001/3 )/2
0.0:
(notice the semicolon!)
php> = (0.004 + 0.002/3 + 0.195 + 0.001/3 )/2
0.1
php> = (0.005 + 0.194 + 0.002/3 + 0.001/3 )/2
0.1
When $result is the 'strange' result:
is_float($result) == true
is_float(0.0:) ==> syntax error
Needless to say the strange result is resulting in syntax-errors in the
code where it occurs.
Reproduce code:
---------------
print (0.005 + 0.002/3 + 0.194 + 0.001/3 )/2
Expected result:
----------------
I'd expect:
0.1
Actual result:
--------------
I'm getting:
0.0:
(notice the ':')
--
Edit bug report at http://bugs.php.net/?id=44255&edit=1
--
Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=44255&r=trysnapshot52
Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=44255&r=trysnapshot53
Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=44255&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=44255&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=44255&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=44255&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=44255&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=44255&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=44255&r=support
Expected behavior: http://bugs.php.net/fix.php?id=44255&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=44255&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=44255&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=44255&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=44255&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=44255&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=44255&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=44255&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=44255&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=44255&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=44255&r=mysqlcfg