用Qt Creator在调试模式下编译一段代码

Question

I am showing you my problem. I'm creating an application in Qt Creator for a university project. As you can see in the code below, I inserted two 'cout' inside a method just because they were useful to me to check that the program worked, this means that they have no real function. After viewing it, the professor delegated me to do it in debug mode with #IFDEF so that that portion of the code containing the 'cout' is visible only to the programmer and not to a hypothetical client. I hope I have explained my problem fairly well, I thank anyone who can help me. Consider that in this type of thing I am quite novice. Thanks

Answer 1

You have to use preprocessor macro. The correct one for qt creator is QT_DEBUG . Your code should look like this:

void BankAccount::addTransaction(Transaction* t){
    if(t->getType()==0 && actualAccountBalance < t->getTransactionValue()) {

#ifdef QT_DEBUG
        cout<<"Unable to add transaction: insufficient balance to make the requested withdrawal!"<<endl;
#endif

        ; // empty command, because of empty if
   }

   else if(find(transactions.begin(),transactions.end(),t) != transactions.end()) {

#ifdef QT_DEBUG
        cout<<"This transaction has already been added!"<<endl;
#endif

        ; // empty command, because of empty if

    }

    else{
        transactions.push_back(t);
        assignID(t);
        actualAccountBalance = calculateAccountBalance();
    }
}