Get rid of isInfinite()?

[Christophe Travert]

Christophe Travert, dans le message (digitalmars.D:170706), a écrit :
> "Mehrdad" , dans le message (digitalmars.D:170697), a écrit :
>> On Monday, 25 June 2012 at 23:03:59 UTC, Jonathan M Davis wrote:
>>> You could store those elements internally as you iterate over 
>>> them
>> 
>> That's *precisely* the point of my wrapper... sorry if that 
>> wasn't clear.
>> 
>> Why shouldn't that be sufficient for making it random-access?
>> 
>> 
>>> If you can somehow figure out how to do that via buffering, 
>>> then you could make it a forward range as well as whatever 
>>> other range types you could define the functions for, but you'd 
>>> have to figure out a way to define save.
>> 
>> 
>> 
>> OK, now we're at the same place. :P
>> 
>> What I'm saying is, I __CAN__ get the buffering to work.
>> 
>> What I __cannot__ figure out what to do with is 'length'... I 
>> can't think of anything reasonable to return, since it's not 
>> infinite (which I might represent as ulong.max, if anything) but 
>> it's unbounded.
>> 
>> 
>> So the _ONLY_ problem I'm running into right now is length() -- 
>> any ideas how I could fix that?
> 
> I you are planning to buffer all input as you read it to enable 
> random-access, then you should better read the whole file in your buffer 
> from the start and get done with it, since you will end up having read 
> the whole file in the buffer at the end...
> 

Hum, sorry, that is irrelevant if your input is not a file.