merkle-reference/src/float.js

This is a TS library implementing [merkle reference] specification.

import * as Tag from './tag.js'

const memory = new Float64Array(1)

export const tag = Tag.for('merkle-structure:float/double-precision')

/**
 * @param {number} value
 */
export const toBytes = (value) => doublePrecisionFloat(value)

/**
 * Encodes given float as a double precision float.
 *
 * @param {number} value
 */
export const doublePrecisionFloat = (value) => {
  memory[0] = value
  return new Uint8Array(memory.buffer.slice(0))
}

/**
 * @param {number} value
 * @return {import('./tree.js').Branch}
 */
export const toTree = (value) => [tag, toBytes(value)]