C#•3y ago

❔ Iterate over a range

What's the equivalent of this (rust)

for i in 0..10 { /* ...do stuff... */ }

for i in 0..10 { /* ...do stuff... */ }

in C#? So basically, how to loop over a range?

I'm not a big fan of C-style loops

I find them very noisy and cumbersome.

Original message was deleted

__dil__OP•9/17/23, 2:34 PM

Oh thanks! I'm really starting out so I didn't know about extension but that does make sense.

It's not a big deal, but I highly doubt I'd ever need ranges from the end of int. Is there any way I could specialize this so it doesn't do the branching stuff to account for ?

__dil__OP•9/17/23, 2:35 PM

that would still require branching though

__dil__OP•9/17/23, 2:36 PM

(i.e. some form of conditional to check )

__dil__OP•9/17/23, 2:37 PM

I thought there might be a specialized type for ranges whose bounds are only from the start (not ) but I might just be wishful

Angius•9/17/23, 2:39 PM

You could use too

Angius•9/17/23, 2:40 PM

__dil__OP•9/17/23, 2:48 PM

A bit less ergonomic, but yeah that works

__dil__OP•9/17/23, 2:48 PM

thanks to both of you

Angius•9/17/23, 2:56 PM

will make it a little more ergonomic

Original message was deleted

__dil__OP•9/17/23, 3:00 PM

hmmm yeah that could be a good solution

__dil__OP•9/17/23, 3:01 PM

Obviously I'm pretty new to C# so, is this concept of iterating over a range common/accepted in this language?

__dil__OP•9/17/23, 3:01 PM

I feel like the fact that this isn't built-in might mean that I'm going against the grain here

Angius•9/17/23, 3:02 PM

Well, ranges are quite a new thing (by ranges I mean the syntax) and they don't really represent a "from-to" in a numeric sense. After all, what does , or "from seventh from the end, to the end" mean in terms of numbers?

Angius•9/17/23, 3:02 PM

to ?

Angius•9/17/23, 3:03 PM

to ?

Angius•9/17/23, 3:03 PM

You usually see regular loops if you really need the index

Angius•9/17/23, 3:03 PM

Most commonly, though, you just... don't need the index

__dil__OP•9/17/23, 3:04 PM

yeah sure, I imagine with most collections I'd just use foreach and it'd work out-of-the-box, but for algorithms it's not rare to need either the index, or a (index, item) pair

Angius•9/17/23, 3:05 PM

Can't say I see much that would require an index

Angius•9/17/23, 3:05 PM

Besides maybe some sort of a parser where you might have to look up item ahead or something

__dil__OP•9/17/23, 3:05 PM

well, just as an example, sorting algorithms are usually expressed using indexes

__dil__OP•9/17/23, 3:06 PM

doesn't really matter though, I do agree that it's not a common thing

Angius•9/17/23, 3:06 PM

__dil__OP•9/17/23, 3:07 PM

yeah yeah, I'm just messing around to get a feel for the language :p In any case, there's more than one way to sort a collection depending on the performance characteristics that you seek. But I digress, performance is not a concern here, ultimately I was just curious.

Angius•9/17/23, 3:08 PM

So, yeah, to sum it up: most commonly you use a foreach or LINQ, on the rare cases you need an index you use a classic loop

__dil__OP•9/17/23, 3:08 PM

alright, thanks

Accord•9/18/23, 3:15 PM

Was this issue resolved? If so, run

/close

/close

otherwise I will mark this as stale and this post will be archived until there is new activity.