All files dsortnans.js

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/**
* @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.
*/
 
'use strict';
 
// MODULES //
 
var stride2offset = require( '@stdlib/strided/base/stride2offset' );
var ndarray = require( './ndarray.js' );
 
 
// MAIN //
 
/**
* Partitions a double-precision floating-point strided array by moving all NaNs either to the beginning or the end of the array.
*
* ## Notes
*
* -   The algorithm is not stable, meaning that the relative order of non-NaN elements is not guaranteed to be preserved.
*
* @param {PositiveInteger} N - number of indexed elements
* @param {number} order - NaN placement order
* @param {Float64Array} x - input array
* @param {integer} strideX - stride length
* @returns {Float64Array} input array
*
* @example
* var Float64Array = require( '@stdlib/array/float64' );
*
* var x = new Float64Array( [ 1.0, -2.0, NaN, 3.0, -4.0, NaN ] );
*
* dsortnans( x.length, 1.0, x, 1 );
* // x => <Float64Array>[ 1.0, -2.0, -4.0, 3.0, NaN, NaN ]
*/
function dsortnans( N, order, x, strideX ) {
	return ndarray( N, order, x, strideX, stride2offset( N, strideX ) );
}
 
 
// EXPORTS //
 
module.exports = dsortnans;