week 5 wiki answer

int validMonth(int mon, char* errmes){
  int res = 0;
  if(mon > 0 && mon <=12){
    res  = 1;
  }
  else{
    strcpy(errmes, "Invalid month (1<=month<=12)");
  }
  return res;
}

write the above function in one line:

int validMonth(int mon, char* errmes){
  return yada yada;
}

answer：

return((mon>0 && mon <=12) || !strcpy(errmes, "Invalid month!"));