Re: [boost] [Range] Feature Request: assign_from_range.

From: Thorsten Ottosen (thorsten.ottosen_at_[hidden])
Date: 2008-02-13 08:06:04

Joe Gottman skrev:
> When I use copy_range() to assign a range to an existing container an 
> unnecessary temporary object is created then assigned to the target. 
> This can be inefficient, especially if the target is a vector or string 
> which may have a large enough capacity() that no reallocation is 
> required for the assignment.  Therefore, I’d like to request a new range 
> algorithm, assign_from_range, that is defined as follows:
> 
> 
> 
>   template<class Sequence, class ForwardRange>
> inline  Sequence &assign_from_range(Sequence &target, const ForwardRange &r)
> {
>       return target.assign(begin(r), end(r));
> }
> 

Do you object to the name assign_range()?

I think the various range_ex libraries being proposed will include this 
as part of the range-based algorithms, so I hesitate a bit to add it.

-Thorsten