1 files changed, 49 insertions, 0 deletions
diff --git a/src/tc-rand.c b/src/tc-rand.c
new file mode 100644
index 0000000..3af45d0
--- /dev/null
+++ b/src/tc-rand.c
@@ -0,0 +1,49 @@
+/*
+ *	Copyright Jan Engelhardt
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the WTF Public License version 2 or
+ *	(at your option) any later version.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <libHX/init.h>
+#include <libHX/misc.h>
+#include "internal.h"
+
+int main(void)
+{
+	struct timespec past, now, delta;
+	unsigned int i;
+
+	if (HX_init() <= 0)
+		abort();
+	for (i = 0; i < 15; ++i) {
+		printf("%d ", HX_irand(i, i));
+		printf("%.1f ", HX_drand(i, i));
+		printf("%08x, ", HX_irand(0, RAND_MAX));
+	}
+	printf("\n");
+
+	clock_gettime(CLOCK_REALTIME, &past);
+	for (i = 0; i < (1 << 25); ++i) {
+		volatile unsigned int __attribute__((unused)) t =
+			HX_irand(0, RAND_MAX);
+	}
+	clock_gettime(CLOCK_REALTIME, &now);
+	HX_timespec_sub(&delta, &now, &past);
+	printf("%% method: " HX_TIMESPEC_FMT " s\n", HX_TIMESPEC_EXP(&delta));
+
+	clock_gettime(CLOCK_REALTIME, &past);
+	for (i = 0; i < (1 << 25); ++i) {
+		volatile unsigned int __attribute__((unused)) t =
+			HX_irand(0, ~0U);
+	}
+	clock_gettime(CLOCK_REALTIME, &now);
+	HX_timespec_sub(&delta, &now, &past);
+	printf("/ method: " HX_TIMESPEC_FMT " s\n", HX_TIMESPEC_EXP(&delta));
+
+	HX_exit();
+	return EXIT_SUCCESS;
+}