/**
* @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 Float32Array = require( '@stdlib/array/float32' );
var addon = require( './../src/addon.node' );


// MAIN //

/**
* Interchanges two complex single-precision floating-point vectors.
*
* @param {PositiveInteger} N - number of values to swap
* @param {Complex64Array} x - first input array
* @param {integer} strideX - `x` stride length
* @param {Complex64Array} y - second input array
* @param {integer} strideY - `y` stride length
* @returns {Complex64Array} `y`
*
* @example
* var Complex64Array = require( '@stdlib/array/complex64' );
* var real = require( '@stdlib/complex/real' );
* var imag = require( '@stdlib/complex/imag' );
*
* var x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
* var y = new Complex64Array( [ 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ] );
*
* cswap( x.length, x, 1, y, 1 );
*
* var z = y.get( 0 );
* // returns <Complex64>
*
* var re = real( z );
* // returns 1.0
*
* var im = imag( z );
* // returns 2.0
*
* z = x.get( 0 );
* // returns <Complex64>
*
* re = real( z );
* // returns 7.0
*
* im = imag( z );
* // returns 8.0
*/
function cswap( N, x, strideX, y, strideY ) {
	var viewX = new Float32Array( x.buffer, x.byteOffset, x.length*2 );
	var viewY = new Float32Array( y.buffer, y.byteOffset, y.length*2 );
	addon( N, viewX, strideX, viewY, strideY );
	return y;
}


// EXPORTS //

module.exports = cswap;