docs: make C benchmark functions static

Author: gunjjoshi

lib/node_modules/@stdlib/_tools/scaffold/math-strided-real-typed-unary/data/benchmark/c/benchmark__length__c.txt

@@ -37,7 +37,7 @@
 /**
 * Prints the TAP version.
 */
-void print_version() {
+static void print_version() {
 	printf( "TAP version 13\n" );
 }
 
@@ -47,7 +47,7 @@ void print_version() {
 * @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 );
@@ -62,7 +62,7 @@ void print_summary( int total, int passing ) {
 * @param iterations   number of iterations
 * @param elapsed      elapsed time in seconds
 */
-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 );
@@ -76,7 +76,7 @@ void print_results( int iterations, double elapsed ) {
 *
 * @return clock time
 */
-double tic() {
+static double tic() {
 	struct timeval now;
 	gettimeofday( &now, NULL );
 	return (double)now.tv_sec + (double)now.tv_usec/1.0e6;
@@ -89,7 +89,7 @@ double tic() {
 * @param b    maximum value
 * @return     random number
 */
-double rand_uniform( double a, double b ) {
+static double rand_uniform( double a, double b ) {
 	double x;
 	int r;
 
@@ -106,7 +106,7 @@ double rand_uniform( double a, double b ) {
 * @param b    maximum value
 * @return     random number
 */
-float rand_uniformf( float a, float b ) {
+static float rand_uniformf( float a, float b ) {
 	return (float)rand_uniform( (double)a, (double)b );
 }
 
@@ -117,7 +117,7 @@ float rand_uniformf( float a, float b ) {
 * @param len          array length
 * @return             elapsed time in seconds
 */
-double benchmark( int iterations, int len ) {
+static double benchmark( int iterations, int len ) {
 	double elapsed;
 	{{C_TYPE}} x[ len ];
 	{{C_TYPE}} y[ len ];