123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151
// deno-fmt-ignore-file// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.// Taken from Node 16.13.0// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
'use strict';
require('../common');const assert = require('assert');
// Test (64 bit) doubleconst buffer = Buffer.allocUnsafe(8);
buffer[0] = 0x55;buffer[1] = 0x55;buffer[2] = 0x55;buffer[3] = 0x55;buffer[4] = 0x55;buffer[5] = 0x55;buffer[6] = 0xd5;buffer[7] = 0x3f;assert.strictEqual(buffer.readDoubleBE(0), 1.1945305291680097e+103);assert.strictEqual(buffer.readDoubleLE(0), 0.3333333333333333);
buffer[0] = 1;buffer[1] = 0;buffer[2] = 0;buffer[3] = 0;buffer[4] = 0;buffer[5] = 0;buffer[6] = 0xf0;buffer[7] = 0x3f;assert.strictEqual(buffer.readDoubleBE(0), 7.291122019655968e-304);assert.strictEqual(buffer.readDoubleLE(0), 1.0000000000000002);
buffer[0] = 2;assert.strictEqual(buffer.readDoubleBE(0), 4.778309726801735e-299);assert.strictEqual(buffer.readDoubleLE(0), 1.0000000000000004);
buffer[0] = 1;buffer[6] = 0;buffer[7] = 0;assert.strictEqual(buffer.readDoubleBE(0), 7.291122019556398e-304);assert.strictEqual(buffer.readDoubleLE(0), 5e-324);
buffer[0] = 0xff;buffer[1] = 0xff;buffer[2] = 0xff;buffer[3] = 0xff;buffer[4] = 0xff;buffer[5] = 0xff;buffer[6] = 0x0f;buffer[7] = 0x00;assert.ok(Number.isNaN(buffer.readDoubleBE(0)));assert.strictEqual(buffer.readDoubleLE(0), 2.225073858507201e-308);
buffer[6] = 0xef;buffer[7] = 0x7f;assert.ok(Number.isNaN(buffer.readDoubleBE(0)));assert.strictEqual(buffer.readDoubleLE(0), 1.7976931348623157e+308);
buffer[0] = 0;buffer[1] = 0;buffer[2] = 0;buffer[3] = 0;buffer[4] = 0;buffer[5] = 0;buffer[6] = 0xf0;buffer[7] = 0x3f;assert.strictEqual(buffer.readDoubleBE(0), 3.03865e-319);assert.strictEqual(buffer.readDoubleLE(0), 1);
buffer[6] = 0;buffer[7] = 0x40;assert.strictEqual(buffer.readDoubleBE(0), 3.16e-322);assert.strictEqual(buffer.readDoubleLE(0), 2);
buffer[7] = 0xc0;assert.strictEqual(buffer.readDoubleBE(0), 9.5e-322);assert.strictEqual(buffer.readDoubleLE(0), -2);
buffer[6] = 0x10;buffer[7] = 0;assert.strictEqual(buffer.readDoubleBE(0), 2.0237e-320);assert.strictEqual(buffer.readDoubleLE(0), 2.2250738585072014e-308);
buffer[6] = 0;assert.strictEqual(buffer.readDoubleBE(0), 0);assert.strictEqual(buffer.readDoubleLE(0), 0);assert.ok(1 / buffer.readDoubleLE(0) >= 0);
buffer[7] = 0x80;assert.strictEqual(buffer.readDoubleBE(0), 6.3e-322);assert.strictEqual(buffer.readDoubleLE(0), -0);assert.ok(1 / buffer.readDoubleLE(0) < 0);
buffer[6] = 0xf0;buffer[7] = 0x7f;assert.strictEqual(buffer.readDoubleBE(0), 3.0418e-319);assert.strictEqual(buffer.readDoubleLE(0), Infinity);
buffer[7] = 0xff;assert.strictEqual(buffer.readDoubleBE(0), 3.04814e-319);assert.strictEqual(buffer.readDoubleLE(0), -Infinity);
['readDoubleLE', 'readDoubleBE'].forEach((fn) => {
  // Verify that default offset works fine.  buffer[fn](undefined);  buffer[fn]();
  ['', '0', null, {}, [], () => {}, true, false].forEach((off) => {    assert.throws(      () => buffer[fn](off),      { code: 'ERR_INVALID_ARG_TYPE' }    );  });
  [Infinity, -1, 1].forEach((offset) => {    assert.throws(      () => buffer[fn](offset),      {        code: 'ERR_OUT_OF_RANGE',        name: 'RangeError',        message: 'The value of "offset" is out of range. ' +                 `It must be >= 0 and <= 0. Received ${offset}`      });  });
  assert.throws(    () => Buffer.alloc(1)[fn](1),    {      code: 'ERR_BUFFER_OUT_OF_BOUNDS',      name: 'RangeError',      message: 'Attempt to access memory outside buffer bounds'    });
  [NaN, 1.01].forEach((offset) => {    assert.throws(      () => buffer[fn](offset),      {        code: 'ERR_OUT_OF_RANGE',        name: 'RangeError',        message: 'The value of "offset" is out of range. ' +                 `It must be an integer. Received ${offset}`      });  });});