fix: replace VLA with dynamic allocation in benchmark

Author: munazzaghazali7-hash

lib/node_modules/@stdlib/stats/strided/smean/benchmark/c/benchmark.length.c

@@ -32,8 +32,8 @@
 /**
 * Prints the TAP version.
 */
-static void print_version( void ) {
-	printf( "TAP version 13\n" );
+static void print_version(void) {
+	printf("TAP version 13\n");
 }
 
 /**
@@ -42,13 +42,13 @@ static void print_version( void ) {
 * @param total     total number of tests
 * @param passing   total number of passing tests
 */
-static void print_summary( int total, int passing ) {
-	printf( "#\n" );
-	printf( "1..%d\n", total ); // TAP plan
-	printf( "# total %d\n", total );
-	printf( "# pass  %d\n", passing );
-	printf( "#\n" );
-	printf( "# ok\n" );
+static void print_summary(int total, int passing) {
+	printf("#\n");
+	printf("1..%d\n", total); // TAP plan
+	printf("# total %d\n", total);
+	printf("# pass  %d\n", passing);
+	printf("#\n");
+	printf("# ok\n");
 }
 
 /**
@@ -57,34 +57,34 @@ static void print_summary( int total, int passing ) {
 * @param iterations  number of iterations
 * @param elapsed     elapsed time in seconds
 */
-static void print_results( int iterations, double elapsed ) {
+static void print_results(int iterations, double elapsed) {
 	double rate = (double)iterations / elapsed;
-	printf( "  ---\n" );
-	printf( "  iterations: %d\n", iterations );
-	printf( "  elapsed: %0.9f\n", elapsed );
-	printf( "  rate: %0.9f\n", rate );
-	printf( "  ...\n" );
+	printf("  ---\n");
+	printf("  iterations: %d\n", iterations);
+	printf("  elapsed: %0.9f\n", elapsed);
+	printf("  rate: %0.9f\n", rate);
+	printf("  ...\n");
 }
 
 /**
 * Returns a clock time.
 *
 * @return clock time
 */
-static double tic( void ) {
+static double tic(void) {
 	struct timeval now;
-	gettimeofday( &now, NULL );
-	return (double)now.tv_sec + (double)now.tv_usec/1.0e6;
+	gettimeofday(&now, NULL);
+	return (double)now.tv_sec + (double)now.tv_usec / 1.0e6;
 }
 
 /**
 * Generates a random number on the interval [0,1).
 *
 * @return random number
 */
-static float rand_float( void ) {
+static float rand_float(void) {
 	int r = rand();
-	return (float)r / ( (float)RAND_MAX + 1.0f );
+	return (float)r / ((float)RAND_MAX + 1.0f);
 }
 
 /**
@@ -94,36 +94,46 @@ static float rand_float( void ) {
 * @param len          array length
 * @return             elapsed time in seconds
 */
-static double benchmark( int iterations, int len ) {
+static double benchmark(int iterations, int len) {
 	double elapsed;
-	float x[ len ];
-	float v;
+	float* x = malloc(len * sizeof(float));
+	if (x == NULL) {
+		fprintf(stderr, "Memory allocation failed\n");
+		exit(1);
+	}
+
+	float v = 0.0f;
 	double t;
 	int i;
 
-	for ( i = 0; i < len; i++ ) {
-		x[ i ] = ( rand_float()*20000.0f ) - 10000.0f;
+	for (i = 0; i < len; i++) {
+		x[i] = (rand_float() * 20000.0f) - 10000.0f;
 	}
-	v = 0.0f;
+
 	t = tic();
-	for ( i = 0; i < iterations; i++ ) {
-		v = stdlib_strided_smean( len, x, 1 );
-		if ( v != v ) {
-			printf( "should not return NaN\n" );
+	for (i = 0; i < iterations; i++) {
+		v = stdlib_strided_smean(len, x, 1);
+		if (v != v) {
+			printf("should not return NaN\n");
 			break;
 		}
 	}
+
 	elapsed = tic() - t;
-	if ( v != v ) {
-		printf( "should not return NaN\n" );
+
+	if (v != v) {
+		printf("should not return NaN\n");
 	}
+
+	free(x);  // <<< free before returning
 	return elapsed;
 }
 
+
 /**
 * Main execution sequence.
 */
-int main( void ) {
+int main(void) {
 	double elapsed;
 	int count;
 	int iter;
@@ -132,20 +142,20 @@ int main( void ) {
 	int j;
 
 	// Use the current time to seed the random number generator:
-	srand( time( NULL ) );
+	srand(time(NULL));
 
 	print_version();
 	count = 0;
-	for ( i = MIN; i <= MAX; i++ ) {
-		len = pow( 10, i );
-		iter = ITERATIONS / pow( 10, i-1 );
-		for ( j = 0; j < REPEATS; j++ ) {
+	for (i = MIN; i <= MAX; i++) {
+		len = pow(10, i);
+		iter = ITERATIONS / pow(10, i - 1);
+		for (j = 0; j < REPEATS; j++) {
 			count += 1;
-			printf( "# c::%s:len=%d\n", NAME, len );
-			elapsed = benchmark( iter, len );
-			print_results( iter, elapsed );
-			printf( "ok %d benchmark finished\n", count );
+			printf("# c::%s:len=%d\n", NAME, len);
+			elapsed = benchmark(iter, len);
+			print_results(iter, elapsed);
+			printf("ok %d benchmark finished\n", count);
 		}
 	}
-	print_summary( count, count );
+	print_summary(count, count);
 }