---
title: "validateRotaryDim"
sidebar_label: "validateRotaryDim"
description: "Kotlin binding reference: validateRotaryDim."
---

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//[clika-runtime](../../../index.md)/[io.clika.runtime](../index.md)/[Ops](index.md)/[validateRotaryDim](validateRotaryDim.md)

# validateRotaryDim

[common]\
fun [validateRotaryDim](validateRotaryDim.md)(rotaryDim: [Long](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html), headDim: [Long](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html) = -1L)

`validateRotaryDim(rotaryDim: Long, headDim: Long = -1L)`: the `validate_rotary_dim` operator. Checks a rotary-embedding configuration up front: `rotary_dim` must be positive, even, and (when `head_dim` is given) no larger than `head_dim`.