[boost] Re: shared_pointer for C-allocated object?

From: Neal D. Becker (nbecker_at_[hidden])
Date: 2004-02-02 11:58:41

David Abrahams wrote:

> "Neal D. Becker" <nbecker_at_[hidden]> writes:
> 
>> I have some legacy C code that returns a pointer:
>>
>> fftw_plan fftw_create_plan(int n, fftw_direction dir, int flags);
>>
>> where fftw_plan is a pointer.
>>
>> Can I use shared_pointer to wrap it?  I guess the issue is that
>> eventually delete will be called on this pointer, but it wasn't allocated
>> with new. Is this a problem?
> 
> Custom deleters are your friend.  See the shared_ptr docs for more
> info.
> 

Thanks!  Just what I needed:

boost::shared_ptr<fftw_plan_struct> plan;
plan (fftw_create_plan (_size, dir, flags), &fftw_destroy_plan)