Re: [boost] Re: Suggestion regarding next() and prior()

From: John Torjo (john.lists_at_[hidden])
Date: 2003-11-25 21:04:46

David Abrahams wrote:
> "Walker, Daniel" <Daniel.Walker_at_[hidden]> writes:
> 
> 
>>template <class T, class Size>
>>inline T next_n(T x, Size n)
>>{
>>    std::advance(x, n);
>>    return x;
>>}
>>
>>template <class T, class Size>
>>inline T prior_n(T x, Size n)
>>{
>>    std::advance(x, -n);
>>    return x;
>>}
>>
> [...]
> Seems reasonable to me, though I'd tend to call them next and prior.
> 

Indeed, there are different overloads.
So if you want next(iterator) it increments (by one), and if you need a specific 
size, just use next(iterator,size).

Same goes for prior().

Best,
John