`round()`

Function in Builtins

round(x): nearest integer, ties to even, component-wise, on both targets.

import { round } from 'typeshade'

The signature, the description and the examples come from the compiler's own source at commit 26de7be8.

Syntax

const round: <K extends FloatKey>(x: ReadonlyNode<K>) => Node<K>

Parameters

x ReadonlyNode<K>

Return value

Node<K>

Description

round(x): nearest integer, ties to even, component-wise, on both targets. This differs from JS Math.round, which rounds halves toward +∞. WGSL’s round is ties-to-even; GLSL ES 3.00’s round leaves exact halves to the implementation, so the GLSL output uses roundEven.

Targets

Target	Support	Notes
WGSL (WebGPU)	Supported	`round(x)`. Over `f64` operands the fp64 pass rewrites it into its `df64` helper.
GLSL ES 3.00 (WebGL2)	Supported	`roundEven(x)`. Over `f64` operands the fp64 pass rewrites it into its `df64` helper.
CPU oracle	Supported	Evaluated in f64 by the oracle.

In the guide

Source

src/core/ir/node.ts, line 1537, at commit 26de7be8

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