Hi Kotlin Team, Do you plan to purpose a Number Ge...

# multiplatform

[vmichalak]

Hi Kotlin Team,
Do you plan to purpose a Number Generator (Math.Random in js / java.util.Random in java) in the Kotlin Standard Lib ? In my multiplatform project we had to implement a Linear Congruential Generator directly in pure kotlin to do the job but even if it's relatively easy to implement it's not the best option we think.

[louiscad]

@vmichalak Do you have your pure kotlin random generator implementation in a gist we can see? About it being in the stdlib, it's already somewhere in YouTrack if I'm not mistaken, you should vote on it

[vmichalak]

I search on YT but i doesn't find. TOO MUCH ENTRIES when i search "random" 😛

[vmichalak]

https://gist.github.com/vmichalak/11e5ddb567786af0ed1ae4d7f57441d4

[louiscad]

@vmichalak I searched random stdlib and found it: https://youtrack.jetbrains.com/issue/KT-17261

[vmichalak]

Thanks you ! I'm dumb 😛

[louiscad]

Thanks @vmichalak for the gist!

[louiscad]

@vmichalak Not so dumb given you made a pure Kotlin random impl 😜

[natpryce]

I ported the Java Mersenne Twister implementation to Kotlin and typealias it to Random on the JS platform.

[natpryce]

https://github.com/npryce/snodge/blob/kotlin/platform/js/src/main/com/natpryce/snodge/MersenneTwisterFast.kt

[vmichalak]

Mersenne Twister vs. Linear Congruential ... FIGHT ! 😂

[louiscad]

Which one should win? Let's argue!
Personally, I like Linear Congruential conciseness.
Your moves @natpryce & @vmichalak

[natpryce]

TBH… I have no idea about the algorithms. I picked Mersenne Twister only because I could paste the code into IntelliJ and it automagically turned it into Kotlin

[vmichalak]

Linear Congruential is the default algorithm for Java, C, Visual Basic, Delphi, etc... Because is really easy to understand and is one of the faster rng algorithm !

[louiscad]

@kyonifer You should post this as a comment in this issue to help the Kotlin team: https://youtrack.jetbrains.com/issue/KT-17261