Re: [boost] [range] range_size<T> deprecation, updated docs etc.

From: Thorsten Ottosen (thorsten.ottosen_at_[hidden])
Date: 2007-11-14 07:17:09

Sergey Shandar skrev:
> Thorsten Ottosen wrote:
>> David Abrahams skrev:
>>   
>>> on Fri Nov 09 2007, Thorsten Ottosen <nesotto-AT-cs.aau.dk> wrote:
>>>
>>>     
>>>> Dear all,
>>>>
>>>> As suggested by several people, I have started to rely on 
>>>> range_difference<T>::type in all places of the library.
>>>>
>>>> I have also updated the docs w.r.t new concepts and are working on 
>>>> polishing them.
>>>>
>>>> 1.35 will introduce a new function
>>>>
>>>>     template< class T >
>>>>     BOOST_DEDUCED_TYPENAME range_difference<T>::type size( const T& r );
>>>>       
>>> Really, you're returning the difference_type and not the size_type?
>>>     
>> Yes, that was the intension. Iterators don't have a size_type per se, 
>> and so it complicated the whole thing a little to make the user worry 
>> about this.
>>
>> -Thorsten
>> _______________________________________________
>> Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost
>>   
> Would it be better to use a meta-function 'make_unsigned' which converts 
> signed type to its correspondent unsigned type? For example:
> 
> signed int => unsigned int
> ::std::ptrdif_t => ::std::size_t
> etc.

I don't really know if it's better.

-Thorsten