Re: [boost] [utility] new auto_buffer class --- RFC

Thorsten Ottosen wrote:

Well, AFAIK, they are very similar. You set the capacity once when you initialize am object:

boost::auto_buffer<T> buffer( get_max_capacity_from_somewhere() );

isn't that exactly what you do with VLAs?

With VLAs, the buffer is on the stack whatever the capacity. With auto_buffer, the buffer is on the stack only if the capacity is smaller than N (which you define to be 256 by default).