Re: [Boost-users] [iterators][range][rangeex] range concatenation

Subject: Re: [Boost-users] [iterators][range][rangeex] range concatenation
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2009-04-07 14:44:11

AMDG

Thorsten Ottosen wrote:
> I suspect that r1 | join(r2) | join(r3) will be less efficient than
> join(r1,r2,r3), because the former will lead to double checks
> of which range that is being iterated, unless there is some clever way
> to avoid that. But the | joined(r1,r2) syntax or whatever is fine with 
> me.

It would be pretty easy to make r1 | join(r2) recognize whether
r1 and r1 are themselves joint_views.

In Christ,
Steven Watanabe