From 0f79e708bf07721b73ea41e5d341be08e8ea4dce Mon Sep 17 00:00:00 2001 From: Minteck Date: Sun, 7 Mar 2021 18:29:17 +0100 Subject: Initial commit --- node_modules/ieee754/LICENSE | 11 +++++ node_modules/ieee754/README.md | 53 ++++++++++++++++++++++++ node_modules/ieee754/index.js | 84 +++++++++++++++++++++++++++++++++++++++ node_modules/ieee754/package.json | 72 +++++++++++++++++++++++++++++++++ 4 files changed, 220 insertions(+) create mode 100644 node_modules/ieee754/LICENSE create mode 100644 node_modules/ieee754/README.md create mode 100644 node_modules/ieee754/index.js create mode 100644 node_modules/ieee754/package.json (limited to 'node_modules/ieee754') diff --git a/node_modules/ieee754/LICENSE b/node_modules/ieee754/LICENSE new file mode 100644 index 0000000..5aac82c --- /dev/null +++ b/node_modules/ieee754/LICENSE @@ -0,0 +1,11 @@ +Copyright 2008 Fair Oaks Labs, Inc. + +Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: + +1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. + +2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. + +3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/node_modules/ieee754/README.md b/node_modules/ieee754/README.md new file mode 100644 index 0000000..c5291d2 --- /dev/null +++ b/node_modules/ieee754/README.md @@ -0,0 +1,53 @@ +# ieee754 [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url] + +[travis-image]: https://img.shields.io/travis/feross/ieee754/master.svg +[travis-url]: https://travis-ci.org/feross/ieee754 +[npm-image]: https://img.shields.io/npm/v/ieee754.svg +[npm-url]: https://npmjs.org/package/ieee754 +[downloads-image]: https://img.shields.io/npm/dm/ieee754.svg +[downloads-url]: https://npmjs.org/package/ieee754 +[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg +[standard-url]: https://standardjs.com + +[![saucelabs][saucelabs-image]][saucelabs-url] + +[saucelabs-image]: https://saucelabs.com/browser-matrix/ieee754.svg +[saucelabs-url]: https://saucelabs.com/u/ieee754 + +### Read/write IEEE754 floating point numbers from/to a Buffer or array-like object. + +## install + +``` +npm install ieee754 +``` + +[Get supported ieee754 with the Tidelift Subscription](https://tidelift.com/subscription/pkg/npm-ieee754?utm_source=npm-ieee754&utm_medium=referral&utm_campaign=readme) + +## methods + +`var ieee754 = require('ieee754')` + +The `ieee754` object has the following functions: + +``` +ieee754.read = function (buffer, offset, isLE, mLen, nBytes) +ieee754.write = function (buffer, value, offset, isLE, mLen, nBytes) +``` + +The arguments mean the following: + +- buffer = the buffer +- offset = offset into the buffer +- value = value to set (only for `write`) +- isLe = is little endian? +- mLen = mantissa length +- nBytes = number of bytes + +## what is ieee754? + +The IEEE Standard for Floating-Point Arithmetic (IEEE 754) is a technical standard for floating-point computation. [Read more](http://en.wikipedia.org/wiki/IEEE_floating_point). + +## license + +BSD 3 Clause. Copyright (c) 2008, Fair Oaks Labs, Inc. diff --git a/node_modules/ieee754/index.js b/node_modules/ieee754/index.js new file mode 100644 index 0000000..e87e6ff --- /dev/null +++ b/node_modules/ieee754/index.js @@ -0,0 +1,84 @@ +exports.read = function (buffer, offset, isLE, mLen, nBytes) { + var e, m + var eLen = (nBytes * 8) - mLen - 1 + var eMax = (1 << eLen) - 1 + var eBias = eMax >> 1 + var nBits = -7 + var i = isLE ? (nBytes - 1) : 0 + var d = isLE ? -1 : 1 + var s = buffer[offset + i] + + i += d + + e = s & ((1 << (-nBits)) - 1) + s >>= (-nBits) + nBits += eLen + for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {} + + m = e & ((1 << (-nBits)) - 1) + e >>= (-nBits) + nBits += mLen + for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {} + + if (e === 0) { + e = 1 - eBias + } else if (e === eMax) { + return m ? NaN : ((s ? -1 : 1) * Infinity) + } else { + m = m + Math.pow(2, mLen) + e = e - eBias + } + return (s ? -1 : 1) * m * Math.pow(2, e - mLen) +} + +exports.write = function (buffer, value, offset, isLE, mLen, nBytes) { + var e, m, c + var eLen = (nBytes * 8) - mLen - 1 + var eMax = (1 << eLen) - 1 + var eBias = eMax >> 1 + var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0) + var i = isLE ? 0 : (nBytes - 1) + var d = isLE ? 1 : -1 + var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0 + + value = Math.abs(value) + + if (isNaN(value) || value === Infinity) { + m = isNaN(value) ? 1 : 0 + e = eMax + } else { + e = Math.floor(Math.log(value) / Math.LN2) + if (value * (c = Math.pow(2, -e)) < 1) { + e-- + c *= 2 + } + if (e + eBias >= 1) { + value += rt / c + } else { + value += rt * Math.pow(2, 1 - eBias) + } + if (value * c >= 2) { + e++ + c /= 2 + } + + if (e + eBias >= eMax) { + m = 0 + e = eMax + } else if (e + eBias >= 1) { + m = ((value * c) - 1) * Math.pow(2, mLen) + e = e + eBias + } else { + m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen) + e = 0 + } + } + + for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {} + + e = (e << mLen) | m + eLen += mLen + for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {} + + buffer[offset + i - d] |= s * 128 +} diff --git a/node_modules/ieee754/package.json b/node_modules/ieee754/package.json new file mode 100644 index 0000000..99509c3 --- /dev/null +++ b/node_modules/ieee754/package.json @@ -0,0 +1,72 @@ +{ + "_args": [ + [ + "ieee754@1.1.13", + "/data/dev/Projets/FNS Electrode/Projets/FNS Electrode" + ] + ], + "_from": "ieee754@1.1.13", + "_id": "ieee754@1.1.13", + "_inBundle": false, + "_integrity": "sha512-4vf7I2LYV/HaWerSo3XmlMkp5eZ83i+/CDluXi/IGTs/O1sejBNhTtnxzmRZfvOUqj7lZjqHkeTvpgSFDlWZTg==", + "_location": "/ieee754", + "_phantomChildren": {}, + "_requested": { + "type": "version", + "registry": true, + "raw": "ieee754@1.1.13", + "name": "ieee754", + "escapedName": "ieee754", + "rawSpec": "1.1.13", + "saveSpec": null, + "fetchSpec": "1.1.13" + }, + "_requiredBy": [ + "/buffer" + ], + "_resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.1.13.tgz", + "_spec": "1.1.13", + "_where": "/data/dev/Projets/FNS Electrode/Projets/FNS Electrode", + "author": { + "name": "Feross Aboukhadijeh", + "email": "feross@feross.org", + "url": "http://feross.org" + }, + "bugs": { + "url": "https://github.com/feross/ieee754/issues" + }, + "contributors": [ + { + "name": "Romain Beauxis", + "email": "toots@rastageeks.org" + } + ], + "description": "Read/write IEEE754 floating point numbers from/to a Buffer or array-like object", + "devDependencies": { + "airtap": "0.1.0", + "standard": "*", + "tape": "^4.0.0" + }, + "homepage": "https://github.com/feross/ieee754#readme", + "keywords": [ + "IEEE 754", + "buffer", + "convert", + "floating point", + "ieee754" + ], + "license": "BSD-3-Clause", + "main": "index.js", + "name": "ieee754", + "repository": { + "type": "git", + "url": "git://github.com/feross/ieee754.git" + }, + "scripts": { + "test": "standard && npm run test-node && npm run test-browser", + "test-browser": "airtap -- test/*.js", + "test-browser-local": "airtap --local -- test/*.js", + "test-node": "tape test/*.js" + }, + "version": "1.1.13" +} -- cgit