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

From: Joe Gottman (jgottman_at_[hidden])
Date: 2008-02-14 19:29:36

Thorsten Ottosen wrote:
> 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.
> 

    assign_range is fine for the name, but I'd prefer to see this as 
part of the base range library, especially if the range_ex libraries 
aren't likely to be in boost 1.36.

Joe Gottman