Re: [Boost-users] [proto] Deep copy question

On Fri, Mar 5, 2010 at 7:14 PM, Manjunath Kudlur wrote:

Actually, I am looking for some advice on the following: I know that when I have proto::terminal, the underlying object is created once, and held by reference *everywhere* it is appears in a large complex expression. But as soon as I try to do a deep_copy of the expression (as in BOOST_PROTO_AUTO), the underlying object is copied once for *every* appearance in the expression. How do I make it such the underlying object doesn't copied many times? I want to have the copied expression also to have the property that the original expression had, i.e., everywhere an underlying object is referenced, they all refer to the same object. I will be grateful for any advice.

Oops, I just discovered this question has been asked before in this list. Please ignore.. Manjunath