Re: [Boost-users] [Assign]

Subject: Re: [Boost-users] [Assign]
From: Thorsten Ottosen (nesotto_at_[hidden])
Date: 2010-07-05 09:05:46

John Dlugosz skrev:
> This is my first time reaching for the Assign library, but I’m insprired 
> by what I’ve seen discussed here in the list.
> 
>  
> 
> I’m creating a vector from three ranges.  So something like:
> 
>  
> 
>    std::vector<record_type> newvec= 
> list_of().range(a,b).range(c,d).range(e,f);
> 
>  
> 
> would be right?  The tutorial doesn’t show anything where the stuff 
> begins with a range, only stuff in the list_of().  But I’m thinking I 
> have to start with list_of, even if it’s empty, to kick it off, right?  
> I’m hoping that correctly kicks it off but doesn’t add default elements!

The current version does add a default constructed element. Following 
the recent mini-review, we plan on releasing a new version, e.g. in 
namespace boost::assign::v2 without the default element.

> 
> Next question:  the range c,d is going to be a whole vector.  That is, 
> the V.begin(), V.end() pair from another object.  Can I just name V 
> alone?  Would that be done in a range(V) wrapper, or by itself, or some 
> other function name?

Does

http://www.boost.org/doc/libs/1_43_0/libs/assign/doc/index.html#repeat_ref

answer your question?

HTH

-Thorsten