CheckVariableExists.c 363 B

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