Hello I'm trying to use an <AtomicInteger> to write a multiplatform library But it seems to be depre...

# getting-started

[Ishlahul Hanif]

Hello
I'm trying to use an AtomicInteger to write a multiplatform library
But it seems to be deprecated on version 1.9

My question:
1. Is it better to downgrade the kotlin version I'm using? If yes, what version is recommended for writing a multiplatform library?
2. How do we implement an Atomic field/variable in kotlin 1.9? it seems I cannot find kotlin.concurrent.AtomicInt as suggested in the page
Thank you in advance!

[ephemient]

can't find https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.concurrent/-atomic-int/ ?

[ephemient]

also consider https://github.com/Kotlin/kotlinx-atomicfu for multiplatform

[Alejandro Serrano.Mena]

you can also try arrow-atomic if you want to go multiplatform but don't want to use atomicfu https://arrow-kt.io/learn/coroutines/concurrency-primitives/#atomic

[Ishlahul Hanif]

@ephemient oh gosh, I'm embarassed that I missed the native part was missing from the dependency, I thought they were the same

also, thanks for the suggestion of using atomicfu, will see on that

thanks!

[Ishlahul Hanif]

@ephemient weirdly, the AtomicInt doesn't exist under the concurrent of my kotlin-stdlib-common-1.9.0 , neither does the Atomics.kt file

[ephemient]

see the docs. they are native-only

[ephemient]

same as the older class with native in its package name

[ephemient]

if you want something to use on other platforms, you need one of the other alternatives mentioned here

[ephemient]

(or just build it yourself; Java has its own atomics, Kotlin provides them on native, and JS isn't threaded so it doesn't need any)

[Ishlahul Hanif]

oh I see, so it wont be usable on multiplatform right?
my bad, I wasn't really familiar with kotlin multiplatform yet

[ephemient]

stdlib docs has this badge

[Ishlahul Hanif]

hmm I'm not sure I get it
by that logic, the tags means I should be able to use them on multiplatform, right? (since the badge includes JVM, JS and Native)

So why can't I import it?

[Ishlahul Hanif]

sorry if its a very noob question

[ephemient]

image.png

[ephemient]

compare

[Ishlahul Hanif]

ah, sooo the AtomicInt class itself is native but the kotlin-stdlib / kotlin.concurrent is not?

sorry, I came from golang and all this is a bit confusing for me

[ephemient]

yes

[Ishlahul Hanif]

got it, thanks man