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Doc Bug #34370 intval fails on negative hex numbers
Submitted: 2005-09-05 00:32 UTC Modified: 2005-09-05 12:18 UTC
From: andreybl at matrix dot co dot il Assigned:
Status: Not a bug Package: Documentation problem
PHP Version: 5CVS-2005-09-05 (snap) OS: RH EL 3.0
Private report: No CVE-ID: None
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 [2005-09-05 00:32 UTC] andreybl at matrix dot co dot il 
Description:
------------
inval() for negative hex number returns the max integer value.



Reproduce code:
---------------
$hex1 = intval("0xffffffff", 16);
$hex2 = intval("0x7fffffff", 16);
var_dump($hex1, $hex2);


Expected result:
----------------
int(-1)
int(2147483647)

Actual result:
--------------
int(2147483647)
int(2147483647)

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 [2005-09-05 08:56 UTC] sniper@php.net 
Documentation should state this more clearly.
 [2005-09-05 10:57 UTC] vrana@php.net 
0xffffffff isn't negative, it's 4294967295 which is over limit so 2147483647 is returned according to documentation.
 [2005-09-05 12:18 UTC] andreybl at matrix dot co dot il 
Actually 0xffffffff is neither negative nor positive. It depends upon how we treat it: as signed or as unsigned.

Ok. Should I close the bug?
 
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