Re: [Boost-users] boost::ptr_array to use or not?

From: Thorsten Ottosen (thorsten.ottosen_at_[hidden])
Date: 2008-03-05 03:13:50

j.c. skrev:
> Hi,
> I have an pointer array of objects as follows:
> 
> bucket * m_buckets[BUCKET_SIZE];
> 
> Because this array is a set size does it make sense to use 
> a boost::ptr_array?
> 
> boost::ptr_array<bucket, BUCKET_SIZE> m_buckets;
> 
> * Note: One thing I first noticed with boost::array is that I cannot 
> perform operations such as inserting at a desired index:
> 
> // Existing code.
> m_buckets[bit] = new bucket(k,v);
> 
> My goal is to use as many smart pointers as I can and less heap allocation.

   m_buckets.replace<bit>( new bucket(k,v) );

or

   m_buckets.replace( bit, new bucket(k.v) );

should work for boost::ptr_array<T,N> dependending on whether "bit" is 
known at compile time.

-Thorsten