Re: [boost] Interprocess regexes

Subject: Re: [boost] Interprocess regexes
From: Phil Endecott (spam_from_boost_dev_at_[hidden])
Date: 2009-12-06 05:56:00

David Abrahams wrote:
> On Dec 5, 2009, at 10:14 PM, Phil Endecott wrote:
>
>> while the custom allocators let you put std::containers in shared 
>> memory they are still not very useful since they can only be used 
>> by the process that put them there - other processes will (potentially) 
>> see the shared memory at a different address and all the pointers 
>> will be wrong
>
> Isn't this *exactly* what the allocator's nested ::pointer type is for? 

It would be, except that it's broken.  Maybe someone else can recall 
the details, but it's something like allocators are required to define 
pointer as T* or containers are allowed to assume that they have done so.

Phil.