ref: 73cfd3c699f20de73f64238d7e47abdb35c018d6
dir: /lib/c/rand.c/
#include <stdlib.h>
#undef rand
#undef srand
static int next;
void
srand(unsigned seed)
{
next = seed;
}
int
rand(void) /* RAND_MAX assumed to be 32767. */
{
next = next * 1103515245 + 12345;
return (unsigned)(next/65536) % 32768;
}