ref: d2278660a0bce54ae4a5d37f2fbc6dd4c2f459c8
dir: /src/libc/stdlib/rand.c/
#include <stdlib.h>
#undef rand
#undef srand
static unsigned long 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;
}