Re: [PHP-DEV] PHP3 and 64-bit land From: Zeev Suraski (bourbon <email protected>)
Date: 02/27/99

On Sat, 27 Feb 1999 sas <email protected> wrote:

> Well, I don't intend to change that specific part. It appears to me that
> index_ptr is just recycled.

As a general approach, PHP usually uses void pointers to store any
enumerated type (long, pointer, int, etc). There's one exception I can
think of, which is the hash, that uses unsigned integers to store the
numeric offsets.
Resources use hash tables to store themselves, and they usually use the
numeric indices. I think it's extremely safe to use 32-bit integers as
unique identifiers for 64-bit pointers, by simply casting them. You'd
have to be extremely unlucky to bump into a problem because of this data
loss. Your chances of winning the lottery are much much bigger.

Of course, you mustn't *store* pointers in integers, but that's something
different.

Zeev 

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Zeev Suraski <zeev <email protected>>
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