#39641 [NEW]: Expression evaluation violates intuition
| From: | netex at 163 dot com | Date: | Mon, 27 Nov 2006 05:10:48 +0000 |
| Subject: | #39641 [NEW]: Expression evaluation violates intuition | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-105456@lists.php.net to get a copy of this message | ||
From: netex at 163 dot com
Operating system: FreeBSD 6.1
PHP version: 5.2.0
PHP Bug Type: Variables related
Bug description: Expression evaluation violates intuition
Description:
------------
Expression evaluation violates intuition, see the code:
Reproduce code:
---------------
<?
$a = -1109046485 & 0xffffffff;
$b = -1129749216 & 0xffffffff;
printf("%x + %x = %x\n",$a,$b,$a+$b);
printf("%x\n", 0xbde54b2b + 0xbca96520);
?>
Expected result:
----------------
X-Powered-By: PHP/5.2.0
Content-type: text/html
bde54b2b + bca96520 = 7a8eb04b
7a8eb04b
Actual result:
--------------
X-Powered-By: PHP/5.2.0
Content-type: text/html
bde54b2b + bca96520 = 80000000
7a8eb04b
--
Edit bug report at http://bugs.php.net/?id=39641&edit=1
--
Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=39641&r=trysnapshot44
Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=39641&r=trysnapshot52
Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=39641&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=39641&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=39641&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=39641&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=39641&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=39641&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=39641&r=support
Expected behavior: http://bugs.php.net/fix.php?id=39641&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=39641&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=39641&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=39641&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=39641&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=39641&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=39641&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=39641&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=39641&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=39641&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=39641&r=mysqlcfg