native.js (1692B)
1 /** 2 * @license Apache-2.0 3 * 4 * Copyright (c) 2020 The Stdlib Authors. 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 'use strict'; 20 21 // MODULES // 22 23 var addon = require( './../src/addon.node' ); 24 25 26 // MAIN // 27 28 /** 29 * Creates a double-precision floating-point number from a higher order word (unsigned 32-bit integer) and a lower order word (unsigned 32-bit integer). 30 * 31 * @private 32 * @param {uinteger32} high - higher order word (unsigned 32-bit integer) 33 * @param {uinteger32} low - lower order word (unsigned 32-bit integer) 34 * @returns {number} floating-point number 35 * 36 * @example 37 * var v = fromWords( 1774486211, 2479577218 ); 38 * // returns 3.14e201 39 * 40 * @example 41 * var v = fromWords( 3221823995, 1413754136 ); 42 * // returns -3.141592653589793 43 * 44 * @example 45 * var v = fromWords( 0, 0 ); 46 * // returns 0.0 47 * 48 * @example 49 * var v = fromWords( 2147483648, 0 ); 50 * // returns -0.0 51 * 52 * @example 53 * var v = fromWords( 2146959360, 0 ); 54 * // returns NaN 55 * 56 * @example 57 * var v = fromWords( 2146435072, 0 ); 58 * // returns Infinity 59 * 60 * @example 61 * var v = fromWords( 4293918720, 0 ); 62 * // returns -Infinity 63 */ 64 function fromWords( high, low ) { 65 return addon( high, low ); 66 } 67 68 69 // EXPORTS // 70 71 module.exports = fromWords;