Iterators for D

[Walter Bright]

Jarrett Billingsley wrote:
> "Walter Bright" <newshound at digitalmars.com> wrote in message 
> news:eio6u5$1j6o$1 at digitaldaemon.com...
> 
>> Overload opIndex for rvalue access
>> Overload opIndexAssign for lvalue access
> 
> Somehow..
> 
> foreach(i; foo)
> {
>     auto x = i[0];
>     i[0] = x + 1;
> }
> 
> You often say that operator overloading should be used only what it should 
> be used for, and taking the index of an iterator means.. what exactly?
> 
> Would it be nicer to just use a .value property instead?
> 
> foreach(i; foo)
> {
>     auto x = i.value;
>     i.value = x + 1;
> } 

The problem is if the iterator is an actual pointer, there is no .value 
property for a pointer.

Another possibility is to have:
	*x
rewritten to:
	x[0]
if x is not a pointer.