bench: fix mutation bug

Author: kgryte

lib/node_modules/@stdlib/array/base/put/benchmark/benchmark.js

@@ -30,15 +30,17 @@ var put = require( './../lib' );
 // MAIN //
 
 bench( pkg+'::no_broadcasting:len=100', function benchmark( b ) {
+	var idx;
 	var x;
 	var i;
 	var v;
 
-	x = zeroTo( 99 );
+	x = zeroTo( 100 );
+	idx = zeroTo( 100 );
 
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		v = put( x, x, x, 'throw' );
+		v = put( x, idx, x, 'throw' );
 		if ( typeof v !== 'object' ) {
 			b.fail( 'should return an array' );
 		}
@@ -52,15 +54,17 @@ bench( pkg+'::no_broadcasting:len=100', function benchmark( b ) {
 });
 
 bench( pkg+'::broadcasting:len=100', function benchmark( b ) {
+	var idx;
 	var x;
 	var i;
 	var v;
 
-	x = zeroTo( 99 );
+	x = zeroTo( 100 );
+	idx = zeroTo( 100 );
 
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		v = put( x, x, [ i ], 'throw' );
+		v = put( x, idx, [ i ], 'throw' );
 		if ( typeof v !== 'object' ) {
 			b.fail( 'should return an array' );
 		}