Modules/CheckVariableExists.c

   1 #ifdef CHECK_VARIABLE_EXISTS
   2
   3 extern int CHECK_VARIABLE_EXISTS;
   4
   5 #  ifdef __CLASSIC_C__
   6 int main()
   7 {
   8   int ac;
   9   char* av[];
  10 #  else
  11 int main(int ac, char* av[])
  12 {
  13 #  endif
  14   if (ac > 1000) {
  15     return *av[0];
  16   }
  17   return CHECK_VARIABLE_EXISTS;
  18 }
  19
  20 #else /* CHECK_VARIABLE_EXISTS */
  21
  22 #  error "CHECK_VARIABLE_EXISTS has to specify the variable"
  23
  24 #endif /* CHECK_VARIABLE_EXISTS */