#49300 [NEW]: very bizarre loops with decimal numbers
| From: | looris at gmail dot com | Date: | Wed, 19 Aug 2009 20:39:01 +0000 |
| Subject: | #49300 [NEW]: very bizarre loops with decimal numbers | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-141261@lists.php.net to get a copy of this message | ||
From: looris at gmail dot com
Operating system: debian stable
PHP version: 5.2.10
PHP Bug Type: Unknown/Other Function
Bug description: very bizarre loops with decimal numbers
Description:
------------
Just look at the code.
Reproduce code:
---------------
<?php
for ($value=0.1; $value<0.6; $value+=0.1) {
echo $value."\n";
}
echo "\n";
for ($value=0.1; $value<0.8; $value+=0.1) {
echo $value."\n";
}
?>
Expected result:
----------------
0.1
0.2
0.3
0.4
0.5
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Actual result:
--------------
0.1
0.2
0.3
0.4
0.5
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
--
Edit bug report at http://bugs.php.net/?id=49300&edit=1
--
Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=49300&r=trysnapshot52
Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=49300&r=trysnapshot53
Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=49300&r=trysnapshot60
Fixed in SVN: http://bugs.php.net/fix.php?id=49300&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=49300&r=needdocs
Fixed in release: http://bugs.php.net/fix.php?id=49300&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=49300&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=49300&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=49300&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=49300&r=support
Expected behavior: http://bugs.php.net/fix.php?id=49300&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=49300&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=49300&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=49300&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=49300&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=49300&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=49300&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=49300&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=49300&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=49300&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=49300&r=mysqlcfg