Re: [boost] Interest in a "Heterogenous Container" system?

Christian Schladetsch wrote:

This is largely what I did. The allocation model used by Cloneable is based on covariant virtual methods that are passed an 'abstract allocator' which takes the alignment as an argument.

struct abstract_allocator { typedef char *pointer; virtual pointer allocate_bytes(size_t num_bytes, size_t alignment) = 0; virtual void deallocate_bytes(pointer, size_t alignment) = 0; static size_t calc_padding(pointer ptr, size_t alignment); };

Ok, I see. But what gains does using a special container give?