refactor: use utility to resolve offset

Author: kgryte

lib/node_modules/@stdlib/blas/base/scnrm2/lib/scnrm2.js

@@ -20,6 +20,7 @@
 
 // MODULES //
 
+var stride2offset = require( '@stdlib/strided/base/stride2offset' );
 var ndarray = require( './ndarray.js' );
 
 
@@ -42,16 +43,7 @@ var ndarray = require( './ndarray.js' );
 * // returns ~0.8
 */
 function scnrm2( N, cx, strideX ) {
-	var ox;
-	if ( N <= 0 ) {
-		return 0.0;
-	}
-	if ( strideX < 0 ) {
-		ox = ( 1 - N ) * strideX;
-	} else {
-		ox = 0;
-	}
-	return ndarray( N, cx, strideX, ox );
+	return ndarray( N, cx, strideX, stride2offset( N, strideX ) );
 }