Bug #61764 [Opn->Asn]: output of unpack while 'I' used
Edit report at https://bugs.php.net/bug.php?id=61764&edit=1
ID: 61764
Updated by: cataphract@php.net
Reported by: pgajdos at suse dot com
Summary: output of unpack while 'I' used
-Status: Open
+Status: Assigned
Type: Bug
Package: Unknown/Other Function
Operating System: Linux
PHP Version: 5.3.10
-Assigned To:
+Assigned To: cataphract
Block user comment: N
Private report: N
New Comment:
Verified. If PHP can represent the unpacked unsigned number with its integer type, it should never
return a negative number.
The result of pack() is correct:
http://www.wolframalpha.com/input/?i=%28-30000+mod+2%5E32%29+in+hex
ffff8ad0_16
$ php -r "print_r(unpack('H*', pack('I', -30000)));"
Array
(
[1] => d08affff
)
Previous Comments:
------------------------------------------------------------------------
[2012-04-18 13:32:15] pgajdos at suse dot com
Description:
------------
php -r "print_r(unpack('I', pack('I', -30000)));
gives 4294937296 on s390x but -30000 on x86_64. According to manual I think correct value should be
4294937296 on x86_64. Also perl returns this number for
perl -e "print unpack('I', pack('I', -30000))" for these two
architectures.
Or have I misunderstood something?
------------------------------------------------------------------------
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Edit this bug report at https://bugs.php.net/bug.php?id=61764&edit=1
Thread (4 messages)