65 lines
1.7 KiB
JavaScript
65 lines
1.7 KiB
JavaScript
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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2018 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var recurse = require( './recurse.js' );
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// MAIN //
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/**
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* Converts an ndarray buffer to a generic array (which may include nested arrays).
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*
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* @param {(ArrayLikeObject|TypedArray|Buffer)} buffer - data buffer
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* @param {NonNegativeIntegerArray} shape - array shape
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* @param {IntegerArray} strides - array strides
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* @param {NonNegativeInteger} offset - index offset
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* @param {string} order - specifies whether an array is row-major (C-style) or column-major (Fortran-style)
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* @returns {(EmptyArray|Array|Array<Array>)} array (which may include nested arrays)
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*
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* @example
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* var buffer = [ 1, 2, 3, 4 ];
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* var shape = [ 2, 2 ];
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* var order = 'row-major';
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* var strides = [ 2, 1 ];
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* var offset = 0;
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*
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* var out = ndarray2array( buffer, shape, strides, offset, order );
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* // returns [ [ 1, 2 ], [ 3, 4 ] ]
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*/
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function ndarray2array( buffer, shape, strides, offset, order ) {
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var i;
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if ( shape.length === 0 ) {
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return [];
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}
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for ( i = 0; i < shape.length; i++ ) {
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if ( shape[ i ] === 0 ) {
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return [];
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}
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}
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return recurse( buffer, shape, strides, offset, order, 0 );
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}
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// EXPORTS //
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module.exports = ndarray2array;
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