bench: refactor to use dynamic memory allocation in blas/base/caxpy

PR-URL: #8885
Ref: #8643
Reviewed-by: Athan Reines <[email protected]>

Author: ishwarthecodddr

lib/node_modules/@stdlib/blas/base/caxpy/benchmark/c/benchmark.length.c

@@ -97,13 +97,15 @@ static float rand_float( void ) {
 */
 static double benchmark1( int iterations, int len ) {
 	stdlib_complex64_t alpha;
-	float x[ len*2 ];
-	float y[ len*2 ];
+	float *x;
+	float *y;
 	double elapsed;
 	double t;
 	int i;
 
 	alpha = stdlib_complex64( 1.0f, 0.0f );
+	x = (float *) malloc( len * 2 * sizeof( float ) );
+	y = (float *) malloc( len * 2 * sizeof( float ) );
 	for ( i = 0; i < len*2; i += 2 ) {
 		x[ i ] = ( rand_float()*2.0f ) - 1.0f;
 		x[ i+1 ] = ( rand_float()*2.0f ) - 1.0f;
@@ -122,6 +124,8 @@ static double benchmark1( int iterations, int len ) {
 	if ( y[ 0 ] != y[ 0 ] ) {
 		printf( "should not return NaN\n" );
 	}
+	free( x );
+	free( y );
 	return elapsed;
 }
 
@@ -134,13 +138,15 @@ static double benchmark1( int iterations, int len ) {
 */
 static double benchmark2( int iterations, int len ) {
 	stdlib_complex64_t alpha;
-	float x[ len*2 ];
-	float y[ len*2 ];
+	float *x;
+	float *y;
 	double elapsed;
 	double t;
 	int i;
 
 	alpha = stdlib_complex64( 1.0f, 0.0f );
+	x = (float *) malloc( len * 2 * sizeof( float ) );
+	y = (float *) malloc( len * 2 * sizeof( float ) );
 	for ( i = 0; i < len*2; i += 2 ) {
 		x[ i ] = ( rand_float()*2.0f ) - 1.0f;
 		x[ i+1 ] = ( rand_float()*2.0f ) - 1.0f;
@@ -159,6 +165,8 @@ static double benchmark2( int iterations, int len ) {
 	if ( y[ 0 ] != y[ 0 ] ) {
 		printf( "should not return NaN\n" );
 	}
+	free( x );
+	free( y );
 	return elapsed;
 }