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.
