Renamed (newish) functions expand_uninitialized to expand_uninit. + some minor changes.

1 files changed, 33 insertions, 0 deletions

diff --git a/benchmarks/misc/prng_bench.cpp b/benchmarks/misc/prng_bench.cpp
index e3524766..9d840316 100644
--- a/benchmarks/misc/prng_bench.cpp
+++ b/benchmarks/misc/prng_bench.cpp
@@ -41,6 +41,22 @@ static inline uint64_t sfc64(uint64_t s[4]) {
   return result;

 }

 

+uint32_t sfc32(uint32_t s[4]) {

+    uint32_t t = s[0] + s[1] + s[3]++;

+    s[0] = s[1] ^ (s[1] >> 9);

+    s[1] = s[2] + (s[2] << 3);

+    s[2] = (s[2] << 21) | (s[2] >> 11) + t;

+    return t;

+}

+

+uint32_t stc32(uint32_t s[5]) {

+    uint32_t t = (s[0] ^ (s[3] += s[4])) + s[1];

+    s[0] = s[1] ^ (s[1] >> 9);

+    s[1] = s[2] + (s[2] << 3);

+    s[2] = (s[2] << 21) | (s[2] >> 11) + t;

+    return t;

+}

+

 /* xoshiro128+  */

 

 uint64_t xoroshiro128plus(uint64_t s[2]) {

@@ -130,6 +146,22 @@ int main(void)
 

     beg = clock();

     for (size_t i = 0; i < N; i++)

+      recipient[i] = sfc32((uint32_t *)rng.state);

+    end = clock();

+    cout << "sfc32:\t\t"

+         << (float(end - beg) / CLOCKS_PER_SEC)

+         << "s: " << recipient[312] << endl;

+

+    beg = clock();

+    for (size_t i = 0; i < N; i++)

+      recipient[i] = stc32((uint32_t *)rng.state);

+    end = clock();

+    cout << "stc32:\t\t"

+         << (float(end - beg) / CLOCKS_PER_SEC)

+         << "s: " << recipient[312] << endl;

+

+    beg = clock();

+    for (size_t i = 0; i < N; i++)

       recipient[i] = sfc64(rng.state);

     end = clock();

     cout << "sfc64:\t\t"

@@ -144,6 +176,7 @@ int main(void)
          << (float(end - beg) / CLOCKS_PER_SEC)

          << "s: " << recipient[312] << endl;

 

+

     beg = clock();

     for (size_t i = 0; i < N; i++)

       recipient[i] = xoroshiro128plus(rng.state);