Re: [boost] Re: [Boost-users] Boost Graph Library and Boehm Garbage Collector

From: Doug Gregor (dgregor_at_[hidden])
Date: 2005-05-02 10:49:45

On Apr 23, 2005, at 3:51 PM, Stefan Strasser wrote:

> (moving this to boost developer list)
>
> FBSL schrieb:
>> Hello
>> I am having trouble to garbage-collect adjacency_list<>. I have 
>> instanciated it with correctly garbage-collected vectors and lists (I 
>> have copied vecS and listS definitions, and added Boehm GC's default 
>> allocator so that they are garbage-collected). In my application I 
>> need to dynamically allocate many graphs, but it does not work, there 
>> is a (big) memory leak. Unfortunately, there is no template argument 
>> in adjacency_list<> to specify Boehm GC's allocator.
>
> you're right, the BGL uses the default new operator to allocate memory 
> which then isn't collected of course.
> so this makes it effectively impossible to use BGL with boehm GC.
> is there a boost guideline to allocate memory only through allocators 
> which is violated here?

There is no Boost-wide guideline that requires the use of allocators, 
but adjacency_list and adjacency_matrix should support allocators. I've 
logged this as a bug in the SourceForge bug tracker, but I don't know 
when we'll get around to fixing it. We could definitely use some help!

        Doug