refactor: revert implementation for ndarray

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Author: aman-095

lib/node_modules/@stdlib/blas/base/zscal/lib/ndarray.js

@@ -1,7 +1,7 @@
 /**
 * @license Apache-2.0
 *
-* Copyright (c) 2025 The Stdlib Authors.
+* 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.
@@ -20,7 +20,10 @@
 
 // MODULES //
 
-var cmul = require( '@stdlib/complex/float64/base/mul' );
+var reinterpret = require( '@stdlib/strided/base/reinterpret-complex128' );
+var cmul = require( '@stdlib/complex/float64/base/mul' ).assign;
+var real = require( '@stdlib/complex/float64/real' );
+var imag = require( '@stdlib/complex/float64/imag' );
 
 
 // MAIN //
@@ -31,8 +34,8 @@ var cmul = require( '@stdlib/complex/float64/base/mul' );
 * @param {PositiveInteger} N - number of indexed elements
 * @param {Complex128} za - constant
 * @param {Complex128Array} zx - input array
-* @param {integer} strideX - `zx` stride length
-* @param {NonNegativeInteger} offsetX - starting index for `zx`
+* @param {integer} strideZX - `zx` stride length
+* @param {NonNegativeInteger} offsetZX - starting `zx` index
 * @returns {Complex128Array} input array
 *
 * @example
@@ -45,17 +48,35 @@ var cmul = require( '@stdlib/complex/float64/base/mul' );
 * zscal( 3, za, zx, 1, 0 );
 * // zx => <Complex128Array>[ -2.0, 6.0, -2.0, 14.0, -2.0, 22.0 ]
 */
-function zscal( N, za, zx, strideX, offsetX ) {
+function zscal( N, za, zx, strideZX, offsetZX ) {
+	var view;
+	var re1;
+	var im1;
+	var re2;
+	var im2;
+	var sx;
 	var ix;
 	var i;
 
 	if ( N <= 0 ) {
 		return zx;
 	}
-	ix = offsetX;
+	// Reinterpret the input array as a real-valued array of interleaved real and imaginary components:
+	view = reinterpret( zx, 0 );
+
+	// Adjust the stride and offset:
+	sx = strideZX * 2;
+	ix = offsetZX * 2;
+
+	// Decompose the input scalar to real and imaginary components:
+	re1 = real( za );
+	im1 = imag( za );
+
 	for ( i = 0; i < N; i++ ) {
-		zx.set( cmul( za, zx.get( ix ) ), ix );
-		ix += strideX;
+		re2 = view[ ix ];
+		im2 = view[ ix+1 ];
+		cmul( re1, im1, re2, im2, view, 1, ix );
+		ix += sx;
 	}
 	return zx;
 }