diff options
Diffstat (limited to 'examples/random.c')
| -rw-r--r-- | examples/random.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/examples/random.c b/examples/random.c index 0cf9da6f..de1fe778 100644 --- a/examples/random.c +++ b/examples/random.c @@ -7,18 +7,18 @@ int main()
{
enum {R = 30};
- const size_t N = 500000000;
- uint64_t seed = time(NULL);
- cstc64_t stc = cstc64_init(seed);
+ const size_t N = 1000000000;
+ uint64_t seed = 1234; // time(NULL);
+ crand_t rng = crand_init(seed);
uint64_t sum = 0;
- cstc64_normalf_t dist2 = cstc64_normalf_init(R / 2.0, R / 6.0);
+ crand_normalf_t dist2 = crand_normalf_init(R / 2.0, R / 6.0);
size_t N2 = 10000000;
int hist[R] = {0};
sum = 0;
c_forrange (N2) {
- int n = round((cstc64_normalf(&stc, &dist2) + 0.5));
+ int n = round((crand_normalf(&rng, &dist2) + 0.5));
sum += n;
if (n >= 0 && n < R) ++hist[n];
}
@@ -33,16 +33,16 @@ int main() sum = 0;
before = clock();
c_forrange (N) {
- sum += cstc64_rand(&stc);
+ sum += crand_next(&rng);
}
diff = clock() - before;
printf("random : %f secs, %zu %f\n", (float) diff / CLOCKS_PER_SEC, N, (double) sum / N);
- cstc64_uniform_t dist1 = cstc64_uniform_init(0, 1000);
+ crand_uniform_t dist1 = crand_uniform_init(0, 1000);
sum = 0;
before = clock();
c_forrange (N) {
- sum += cstc64_uniform(&stc, &dist1);
+ sum += crand_uniform(&rng, &dist1);
}
diff = clock() - before;
printf("uniform: %f secs, %zu %f\n", (float) diff / CLOCKS_PER_SEC, N, (double) sum / N);
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