Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | /**
* @license Apache-2.0
*
* Copyright (c) 2025 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.
*/
/* eslint-disable max-len */
'use strict';
// MODULES //
var without = require( '@stdlib/array/base/without' );
var wrap = require( './callback_wrapper.js' );
// MAIN //
/**
* Performs a reduction over an input ndarray according to a callback function and assigns results to a provided output ndarray.
*
* @private
* @param {Function} fcn - reduction function
* @param {Array<Object>} arrays - ndarrays
* @param {NonNegativeIntegerArray} ibuf - workspace for storing iteration indices
* @param {NonNegativeIntegerArray} ldims - list of loop dimensions
* @param {NonNegativeIntegerArray} cdims - list of "core" dimensions
* @param {Options} opts - function options
* @param {boolean} hasOpts - boolean indicating whether to pass an options argument to a reduction function
* @param {Function} clbk - callback function
* @param {thisArg} thisArg - callback execution context
* @returns {void}
*
* @example
* var Float64Array = require( '@stdlib/array/float64' );
* var filled = require( '@stdlib/array/base/filled' );
* var zeros = require( '@stdlib/array/base/zeros' );
* var base = require( '@stdlib/ndarray/base/every-by' );
*
* function clbk( value ) {
* return value > 0.0;
* }
*
* // Create data buffers:
* var xbuf = new Float64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 0.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ] );
* var ybuf = filled( false, 1 );
*
* // Define the array shapes:
* var xsh = [ 2, 2 ];
* var ysh = [];
*
* // Define the array strides:
* var sx = [ 6, 1 ];
* var sy = [ 0 ];
*
* // Define the index offsets:
* var ox = 0;
* var oy = 0;
*
* // Create an input ndarray-like object:
* var x = {
* 'dtype': 'float64',
* 'data': xbuf,
* 'shape': xsh,
* 'strides': sx,
* 'offset': ox,
* 'order': 'row-major'
* };
*
* // Create an output ndarray-like object:
* var y = {
* 'dtype': 'generic',
* 'data': ybuf,
* 'shape': ysh,
* 'strides': sy,
* 'offset': oy,
* 'order': 'row-major'
* };
*
* // Create a workspace array for storing iteration indices:
* var ibuf = zeros( xsh.length );
*
* // Define the loop and core dimensions:
* var ldims = [];
* var cdims = [ 0, 1 ];
*
* // Perform a reduction:
* unary0d( base, [ x, y ], ibuf, ldims, cdims, {}, false, clbk, {} );
*
* var v = y.data;
* // returns [ true ]
*/
function unary0d( fcn, arrays, ibuf, ldims, cdims, opts, hasOpts, clbk, thisArg ) {
var ybuf;
var arr;
var y;
var f;
y = arrays[ 1 ];
ybuf = y.data;
f = wrap( arrays[ 0 ].ref, ibuf, ldims, [], cdims, clbk, thisArg );
arr = without( arrays, 1 );
ybuf[ y.offset ] = ( hasOpts ) ? fcn( arr, opts, f ) : fcn( arr, f );
}
// EXPORTS //
module.exports = unary0d;
|