Re: [boost] Regex allocator support

Subject: Re: [boost] Regex allocator support
From: Jeffrey Hellrung (jhellrung_at_[hidden])
Date: 2009-12-02 15:46:39

Fred Sundvik wrote:
> Hi,
> 
> We recently had to use the regular expression library in conditions 
> where there was no available physical memory, for reporting resource 
> consumption when our console game runs out of memory. This wasn't 
> possible however due to the fact that the basic_regex does some dynamic 
> allocations and doesn't provide any allocator specialization, allthough 
> match_results for example does. So we modified the boost code a little 
> bit and added a new template paramter for the allocator, and made 
> constructors that takes allocators as parameters.
> 
<snip>
> 
> So my question is, what are the chances that theese kinds of 
> modificiations gets implemented in the actual library, and possibly in 
> the next c++ standard library as well? I consider it a quite big design 
> flaw to not have any control of the internal allocations, so for me this 
> a quite big thing.

+1; I agree with the OP's sentiments, though I wouldn't say it's 
necessarily a "big" design flaw.  However, I've never used the 
Boost.Regex library, and I don't know if the next standard specifies 
allocator parameters.  I gather it doesn't?

<snip>