From e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d Mon Sep 17 00:00:00 2001 From: Piotr Russ Date: Mon, 16 Nov 2020 00:10:28 +0100 Subject: api, login, auth --- node_modules/@webassemblyjs/ieee754/src/index.js | 47 ++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 node_modules/@webassemblyjs/ieee754/src/index.js (limited to 'node_modules/@webassemblyjs/ieee754/src') diff --git a/node_modules/@webassemblyjs/ieee754/src/index.js b/node_modules/@webassemblyjs/ieee754/src/index.js new file mode 100644 index 0000000..c8540a5 --- /dev/null +++ b/node_modules/@webassemblyjs/ieee754/src/index.js @@ -0,0 +1,47 @@ +// @flow + +import { write, read } from "@xtuc/ieee754"; + +/** + * According to https://webassembly.github.io/spec/binary/values.html#binary-float + * n = 32/8 + */ +export const NUMBER_OF_BYTE_F32 = 4; + +/** + * According to https://webassembly.github.io/spec/binary/values.html#binary-float + * n = 64/8 + */ +export const NUMBER_OF_BYTE_F64 = 8; + +export const SINGLE_PRECISION_MANTISSA = 23; + +export const DOUBLE_PRECISION_MANTISSA = 52; + +export function encodeF32(v: number): Array { + const buffer = []; + + write(buffer, v, 0, true, SINGLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F32); + + return buffer; +} + +export function encodeF64(v: number): Array { + const buffer = []; + + write(buffer, v, 0, true, DOUBLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F64); + + return buffer; +} + +export function decodeF32(bytes: Array): number { + const buffer = Buffer.from(bytes); + + return read(buffer, 0, true, SINGLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F32); +} + +export function decodeF64(bytes: Array): number { + const buffer = Buffer.from(bytes); + + return read(buffer, 0, true, DOUBLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F64); +} -- cgit v1.2.3