chore: update benchmarks

lib/node_modules/@stdlib/math/base/special/erfcx/benchmark/benchmark.js

@@ -21,7 +21,7 @@
 // MODULES //
 
 var bench = require( '@stdlib/bench' );
-var randu = require( '@stdlib/random/base/randu' );
+var randu = require( '@stdlib/random/array/uniform' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pkg = require( './../package.json' ).name;
 var erfcx = require( './../lib' );
@@ -34,10 +34,11 @@ bench( pkg, function benchmark( b ) {
 	var y;
 	var i;
 
+	x = randu( 100, -100.0, 100.0 );
+
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		x = ( randu()*1000.0 ) - 500.0;
-		y = erfcx( x );
+		y = erfcx( x[ i % x.length ] );
 		if ( isnan( y ) ) {
 			b.fail( 'should not return NaN' );
 		}

lib/node_modules/@stdlib/math/base/special/erfcx/benchmark/benchmark.native.js

@@ -22,7 +22,7 @@
 
 var resolve = require( 'path' ).resolve;
 var bench = require( '@stdlib/bench' );
-var randu = require( '@stdlib/random/base/randu' );
+var randu = require( '@stdlib/random/array/uniform' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pkg = require( '@stdlib/math/base/special/erfcx/package.json' ).name;
 var tryRequire = require( '@stdlib/utils/try-require' );
@@ -43,10 +43,11 @@ bench( pkg, opts, function benchmark( b ) {
 	var y;
 	var i;
 
+	x = randu( 100, -100.0, 100.0 );
+
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		x = ( randu()*1000.0 ) - 500.0;
-		y = erfcx( x );
+		y = erfcx( x[ i % x.length ] );
 		if ( isnan( y ) ) {
 			b.fail( 'should not return NaN' );
 		}

lib/node_modules/@stdlib/math/base/special/erfcx/benchmark/c/native/benchmark.c

@@ -40,7 +40,7 @@ static void print_version( void ) {
 * @param total     total number of tests
 * @param passing   total number of passing tests
 */
-void print_summary( int total, int passing ) {
+static void print_summary( int total, int passing ) {
 	printf( "#\n" );
 	printf( "1..%d\n", total ); // TAP plan
 	printf( "# total %d\n", total );
@@ -54,7 +54,7 @@ void print_summary( int total, int passing ) {
 *
 * @param elapsed   elapsed time in seconds
 */
-void print_results( double elapsed ) {
+static void print_results( double elapsed ) {
 	double rate = (double)ITERATIONS / elapsed;
 	printf( "  ---\n" );
 	printf( "  iterations: %d\n", ITERATIONS );
@@ -68,7 +68,7 @@ void print_results( double elapsed ) {
 *
 * @return clock time
 */
-double tic() {
+static double tic( void ) {
 	struct timeval now;
 	gettimeofday( &now, NULL );
 	return (double)now.tv_sec + (double)now.tv_usec/1.0e6;
@@ -79,7 +79,7 @@ double tic() {
 *
 * @return random number
 */
-double rand_double() {
+static double rand_double( void ) {
 	int r = rand();
 	return (double)r / ( (double)RAND_MAX + 1.0 );
 }
@@ -89,17 +89,20 @@ double rand_double() {
 *
 * @return elapsed time in seconds
 */
-double benchmark() {
+static double benchmark( void ) {
 	double elapsed;
-	double x;
+	double x[ 100 ];
 	double y;
 	double t;
 	int i;
 
+	for ( i = 0; i < 100; i++ ) {
+		x[ i ] = ( 1000.0f * rand_float() ) - 500.0f;
+	}
+
 	t = tic();
 	for ( i = 0; i < ITERATIONS; i++ ) {
-		x = ( 2.0 * rand_double() ) - 0.0;
-		y = stdlib_base_erfcx( x );
+		y = stdlib_base_erfcx( x[ i % 100 ] );
 		if ( y != y ) {
 			printf( "should not return NaN\n" );
 			break;