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* @license Apache-2.0
*
* Copyright (c) 2024 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 minViewBufferIndex = require( '@stdlib/strided/base/min-view-buffer-index' );
var addon = require( './../src/addon.node' );
// MAIN //
/**
* Scales a double-precision complex floating-point vector by a double-precision complex floating-point constant and adds the result to a double-precision complex floating-point vector.
*
* @param {PositiveInteger} N - number of indexed elements
* @param {Complex128} za - scalar constant
* @param {Complex128Array} zx - first input array
* @param {integer} strideX - `zx` stride length
* @param {NonNegativeInteger} offsetX - starting `zx` index
* @param {Complex128Array} zy - second input array
* @param {integer} strideY - `zy` stride length
* @param {NonNegativeInteger} offsetY - starting `zy` index
* @returns {Complex128Array} second input array
*
* @example
* var Complex128Array = require( '@stdlib/array/complex128' );
* var Complex128 = require( '@stdlib/complex/float64/ctor' );
* var real = require( '@stdlib/complex/float64/real' );
* var imag = require( '@stdlib/complex/float64/imag' );
*
* var zx = new Complex128Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
* var zy = new Complex128Array( [ 1.0, 1.0, 1.0, 1.0, 1.0, 1.0 ] );
* var za = new Complex128( 2.0, 2.0 );
*
* zaxpy( 3, za, zx, 1, 0, zy, 1, 0 );
*
* var z = zy.get( 0 );
* // returns <Complex128>
*
* var re = real( z );
* // returns -1.0
*
* var im = imag( z );
* // returns 7.0
*/
function zaxpy( N, za, zx, strideX, offsetX, zy, strideY, offsetY ) {
var viewZX;
var viewZY;
offsetX = minViewBufferIndex( N, strideX, offsetX );
offsetY = minViewBufferIndex( N, strideY, offsetY );
viewZX = reinterpret( zx, offsetX );
viewZY = reinterpret( zy, offsetY );
addon( N, za, viewZX, strideX, viewZY, strideY );
return zy;
}
// EXPORTS //
module.exports = zaxpy;
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