6 #include "../lib/types.h"
7 #include "../lib/rand.h"
10 int main(int argc, char *argv[])
13 uint64_t i, start, end, nvalues;
14 unsigned long *buckets, index, pass, fail;
15 double p, dev, mean, vmin, vmax;
18 log_err("%s: start end nvalues\n", argv[0]);
22 start = strtoul(argv[1], NULL, 10);
23 end = strtoul(argv[2], NULL, 10);
26 log_err("%s: start must be smaller than end\n", argv[0]);
29 index = 1 + end - start;
30 buckets = calloc(index, sizeof(unsigned long));
32 nvalues = strtoul(argv[3], NULL, 10);
36 for (i = 0; i < nvalues; i++) {
37 int v = rand_between(&s, start, end);
43 dev = sqrt(nvalues * p * (1.0 - p));
49 for (i = 0; i < index; i++) {
50 if (buckets[i] < vmin || buckets[i] > vmax) {
51 printf("FAIL bucket%4lu: val=%8lu (%.1f < %.1f > %.1f)\n", (unsigned long) i + 1, buckets[i], vmin, mean, vmax);
54 printf("PASS bucket%4lu: val=%8lu (%.1f < %.1f > %.1f)\n", (unsigned long) i + 1, buckets[i], vmin, mean, vmax);
59 printf("Passes=%lu, Fail=%lu\n", pass, fail);