Re: [boost] Interprocess regexes

Subject: Re: [boost] Interprocess regexes
From: John Maddock (john_at_[hidden])
Date: 2009-12-05 11:14:43

>> basic_string and other containers take an
>> allocator template argument, while basic_regex does not.
>>
>> If basic_regex had an allocator it would reap all the same benefits that
>> other string and container types do. In particular, it would be possible
>> to use boost::interprocess to place them in shared memory.
>
> IIUC, 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.  Is this level of functionality useful to you?

That would certainly be a killer blow as far as using this with regex is 
concerned... but don't you have the option of at least trying to load shared 
memory at a specific address?

John.