From: vivekanandan8 at yahoo dot com
Operating system: Debian
PHP version: 5.2CVS-2009-03-27 (snap)
PHP Bug Type: Scripting Engine problem
Bug description: integer overflows it is converted to double but it is not
done in vice versa.
Description:
------------
when the integer overflows it is converted to double but it is not done in
vice versa.
Hence i fell:
it is not done from double to long.
Hence in the function increment_function(zend_operators.c)
we have to add the validation as follows
case IS_DOUBLE:
if(op1->value.dval == LONG_MIN) {
op1->value.lval = (long) op1->value.dval+1;
op1->type = IS_LONG;
}else{
op1->value.dval = op1->value.dval + 1;
}
Reproduce code:
---------------
<?
$vValue = -2147483647;
var_dump($vValue); //output: int(-2147483647)
$vValue--;
var_dump($vValue); //output: float(-2147483648)
$vValue--;
var_dump($vValue); //output: float(-2147483649)
$vValue++;
var_dump($vValue);//output: float(-2147483648)
$vValue++;
var_dump($vValue);//output: float(-2147483647)
?>
Expected result:
----------------
int(-2147483647) int(-2147483648) float(-2147483649) int(-2147483648)
int(-2147483647)
Actual result:
--------------
int(-2147483647) int(-2147483648) float(-2147483649) float(-2147483648)
float(-2147483647)
--
Edit bug report at http://bugs.php.net/?id=47805&edit=1
--
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=47805&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=47805&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=47805&r=trysnapshot60
Fixed in CVS:
http://bugs.php.net/fix.php?id=47805&r=fixedcvs
Fixed in CVS and need be documented:
http://bugs.php.net/fix.php?id=47805&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=47805&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=47805&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=47805&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=47805&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=47805&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=47805&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=47805&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=47805&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=47805&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=47805&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=47805&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=47805&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=47805&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=47805&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=47805&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=47805&r=mysqlcfg
