1#include <stdlib.h>
2
3static unsigned temper(unsigned x)
4{
5	x ^= x>>11;
6	x ^= x<<7 & 0x9D2C5680;
7	x ^= x<<15 & 0xEFC60000;
8	x ^= x>>18;
9	return x;
10}
11
12int rand_r(unsigned *seed)
13{
14	return temper(*seed = *seed * 1103515245 + 12345)/2;
15}
16