All files ndarray.native.js

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/**
* @license Apache-2.0
*
* Copyright (c) 2026 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 reinterpret = require( '@stdlib/strided/base/reinterpret-complex128' );
var addon = require( './../src/addon.node' );
 
 
// MAIN //
 
/**
* Returns the index of the first element in a double-precision complex floating-point strided array equal to a corresponding element in another double-precision complex floating-point strided array using alternative indexing semantics.
*
* ## Notes
*
* -   When comparing elements, the function checks whether both the real and imaginary components of an element in `x` are equal to the corresponding real and imaginary components of an element in `y` using the strict equality operator `===`. As a consequence, `NaN` values are considered distinct, and `-0` and `+0` are considered the same.
* -   If the function is unable to find a match, the function returns `-1`.
*
* @param {PositiveInteger} N - number of indexed elements
* @param {Complex128Array} x - first input array
* @param {integer} strideX - stride length for `x`
* @param {NonNegativeInteger} offsetX - starting index for `x`
* @param {Complex128Array} y - second input array
* @param {integer} strideY - stride length for `y`
* @param {NonNegativeInteger} offsetY - starting index for `y`
* @returns {integer} index
*
* @example
* var Complex128Array = require( '@stdlib/array/complex128' );
*
* var x = new Complex128Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 ] );
* var y = new Complex128Array( [ 0.0, 0.0, 0.0, 0.0, 5.0, 6.0, 0.0, 0.0 ] );
*
* var idx = zfirstIndexEqual( 4, x, 1, 0, y, 1, 0 );
* // returns 2
*/
function zfirstIndexEqual( N, x, strideX, offsetX, y, strideY, offsetY ) {
	var viewX = reinterpret( x, 0 );
	var viewY = reinterpret( y, 0 );
	return addon.ndarray( N, viewX, strideX, offsetX, viewY, strideY, offsetY );
}
 
 
// EXPORTS //
 
module.exports = zfirstIndexEqual;