From: d_kelsey at uk dot ibm dot com
Operating system: Linux 64Bit
PHP version: 5.2CVS-2009-02-17 (CVS)
PHP Bug Type: Scripting Engine problem
Bug description: not operator does a c cast to long which is different to
other ops
Description:
------------
In zend_operators.c the function ZEND_API int bitwise_not_function(..)
handles a double by doing a c cast to a long
"if (op1->type == IS_DOUBLE) {
op1->value.lval = (long) op1->value.dval;
op1->type = IS_LONG;
}"
but all other operators use the zendi_convert_to_long() macro
so not isn't consistent with the other operators.
this can result in an unexpected value as shown in the test case
Reproduce code:
---------------
<?php
define("MAX_64Bit", 9223372036854775807);
$e = (MAX_64Bit + 1);
$f = (int)$e;
var_dump(~(MAX_64Bit + 1));
var_dump(~$f);
?>
Expected result:
----------------
int(-9223372036854775808)
int(-9223372036854775808)
Actual result:
--------------
int(9223372036854775807)
int(-9223372036854775808)
--
Edit bug report at http://bugs.php.net/?id=47424&edit=1
--
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=47424&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=47424&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=47424&r=trysnapshot60
Fixed in CVS:
http://bugs.php.net/fix.php?id=47424&r=fixedcvs
Fixed in CVS and need be documented:
http://bugs.php.net/fix.php?id=47424&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=47424&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=47424&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=47424&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=47424&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=47424&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=47424&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=47424&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=47424&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=47424&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=47424&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=47424&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=47424&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=47424&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=47424&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=47424&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=47424&r=mysqlcfg
