| Re: signed int64 pack/unpack [message #184584 is a reply to message #184581] |
Sun, 12 January 2014 03:03   |
Jerry Stuckle
Messages: 2598
Registered: September 2010
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Senior Member |
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On 1/11/2014 9:59 PM, The Natural Philosopher wrote:
> On 12/01/14 02:46, cameron7(at)gmail(dot)com wrote:
>> Hi, yes, sorry I am running 64-bit OS and 64-bit PHP. PHP_INT_MAX is
>> giving appropriate value.
>>
>> Specifics from `php -i`: PHP Version => 5.4.6-1ubuntu1.5
>>
>> The code has become extremely ugly, and still not working perfectly,
>> thus the reason for trying to find others who may have experience
>> with this. The pack / unpack functions don't provide support for
>> 64-bit integers directly so I'm looking for at least a sound "hack".
>>
>> I've tried all sorts of things, from base_convert to simply trying to
>> extract and iterate over a bitwise comparison against each bit in 4
>> separate 16-bit ints, but nothing I've tried so far is working
>> correctly.
>>
>> Basically, the context for this is I'm writing a client for a custom
>> protocol in which several of the components of that protocol in
>> requests and responses require big endian 64-bit signed int, thus the
>> reason for the need to pack / unpack.
>>
>
> I have to say this is where I would probably be trying to write a C
> library and wrap it in PHP..
>
> Or write a C daemon and interrogate that..via a named pipe or system
> type call.
>
> This is system level programming and PHP is simply not the right tool
> for it.
>
>
>
>
>
You'd write a 5,000 line C program to say "Hello, World".
--
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Remove the "x" from my email address
Jerry Stuckle
jstucklex(at)attglobal(dot)net
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