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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 10x 10x 10x 10x 1x 1x 10x 2x 2x 10x 10x 10x 10x 10x 2x 2x 2x 2x 2x | /** * @license Apache-2.0 * * Copyright (c) 2020 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ 'use strict'; // MODULES // var Float64Array = require( '@stdlib/array/float64' ); var addon = require( './dabs2.native.js' ); // MAIN // /** * Computes the squared absolute value for each element in a double-precision floating-point strided array `x` and assigns the results to elements in a double-precision floating-point strided array `y`. * * @param {NonNegativeInteger} N - number of indexed elements * @param {Float64Array} x - input array * @param {integer} strideX - `x` stride length * @param {NonNegativeInteger} offsetX - starting `x` index * @param {Float64Array} y - destination array * @param {integer} strideY - `y` stride length * @param {NonNegativeInteger} offsetY - starting `y` index * @returns {Float64Array} `y` * * @example * var Float64Array = require( '@stdlib/array/float64' ); * * var x = new Float64Array( [ -1.0, -2.0, -3.0, -4.0, -5.0 ] ); * var y = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0 ] ); * * dabs2( x.length, x, 1, 0, y, 1, 0 ); * // y => <Float64Array>[ 1.0, 4.0, 9.0, 16.0, 25.0 ] */ function dabs2( N, x, strideX, offsetX, y, strideY, offsetY ) { var viewX; var viewY; if ( strideX < 0 ) { offsetX += (N-1) * strideX; } if ( strideY < 0 ) { offsetY += (N-1) * strideY; } viewX = new Float64Array( x.buffer, x.byteOffset+(x.BYTES_PER_ELEMENT*offsetX), x.length-offsetX ); // eslint-disable-line max-len viewY = new Float64Array( y.buffer, y.byteOffset+(y.BYTES_PER_ELEMENT*offsetY), y.length-offsetY ); // eslint-disable-line max-len addon( N, viewX, strideX, viewY, strideY ); return y; } // EXPORTS // module.exports = dabs2; |