Make it compile and run (fairly quick) on Apple M1/M2.

2023-11-21 23:39:05 +00:00
parent 4f42fb3447
commit e465d099c7
4 changed files with 34 additions and 17 deletions
@@ -1,11 +1,12 @@
+#include <math.h>
 #include <stdio.h>
 #include <stdlib.h>

 int main(void)
 {
-    printf("RAND_MAX = %d\n", RAND_MAX);
-    for (uint64_t i = 0; i < 1000000000; ++i)
-    {
+    printf("RAND_MAX = %d (%.1lf bit)\n", RAND_MAX, log2(RAND_MAX));
+    const uint64_t rounds = 1000000000ull * 8 / (unsigned)log2(RAND_MAX);
+    for (uint64_t i = rounds; i-->0;) {
        rand();
    }
 }