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| author | tylov <[email protected]> | 2023-07-20 15:09:10 +0200 |
|---|---|---|
| committer | tylov <[email protected]> | 2023-07-20 15:12:29 +0200 |
| commit | 900295256d825fc323149cd223c49787f32a3696 (patch) | |
| tree | 6c79cf4209e3975bb6865e2940b9cb56ea469c73 /misc/examples/random.c | |
| parent | 224a04f7fa7549ed94d2a1415eb25829e39a7cca (diff) | |
| download | STC-modified-900295256d825fc323149cd223c49787f32a3696.tar.gz STC-modified-900295256d825fc323149cd223c49787f32a3696.zip | |
Moved examples to sub-directories. Added cotask1.c cotask2.c examples.
Diffstat (limited to 'misc/examples/random.c')
| -rw-r--r-- | misc/examples/random.c | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/misc/examples/random.c b/misc/examples/random.c deleted file mode 100644 index b7c0f277..00000000 --- a/misc/examples/random.c +++ /dev/null @@ -1,45 +0,0 @@ -#include <stdio.h> -#include <time.h> -#include <stc/crand.h> - -int main(void) -{ - const int N = 1000000000; - const uint64_t seed = (uint64_t)time(NULL), range = 1000000; - crand_t rng = crand_init(seed); - - int64_t sum; - clock_t diff, before; - - printf("Compare speed of full and unbiased ranged random numbers...\n"); - sum = 0; - before = clock(); - c_forrange (N) { - sum += (uint32_t)crand_u64(&rng); - } - diff = clock() - before; - printf("full range\t\t: %f secs, %d, avg: %f\n", - (double)diff/CLOCKS_PER_SEC, N, (double)sum/N); - - crand_unif_t dist1 = crand_unif_init(0, range); - rng = crand_init(seed); - sum = 0; - before = clock(); - c_forrange (N) { - sum += crand_unif(&rng, &dist1); // unbiased - } - diff = clock() - before; - printf("unbiased 0-%" PRIu64 "\t: %f secs, %d, avg: %f\n", - range, (double)diff/CLOCKS_PER_SEC, N, (double)sum/N); - - sum = 0; - rng = crand_init(seed); - before = clock(); - c_forrange (N) { - sum += (int64_t)(crand_u64(&rng) % (range + 1)); // biased - } - diff = clock() - before; - printf("biased 0-%" PRIu64 " \t: %f secs, %d, avg: %f\n", - range, (double)diff/CLOCKS_PER_SEC, N, (double)sum/N); - -} |
