rand.c

   1 #include <stdlib.h>
   2
   3 static unsigned r;
   4
   5 void srand(unsigned int seed)
   6 {
   7         r = seed;
   8 }
   9
  10 int rand(void)
  11 {
  12         r = r * 1103515245 + 12345;
  13         return r & 0x7fffffff;
  14 }