1#include "common.h" 2#include <stdio.h> 3 4static bool b = false; 5static bool u = false; 6static bool isOk = true; 7 8void setB() 9{ 10 if ( u || b ) 11 isOk = false; 12 b = true; 13} 14 15void setU() 16{ 17 if ( u ) 18 isOk = false; 19 u = true; 20} 21 22// return true iff 23// setB() was called, then setU() 24bool ok() 25{ 26 //fprintf(stderr, "isOk=%d, u=%d, b=%d\n", isOk, u, b); 27 return isOk && u && b; 28} 29 30