Discussion on: Don't ALWAYS quick-return from functions

[Idan Arye]

RAII - if the language has it - is usually the best way to free resources at the end of a function. But if you have to free them manually, many modern languages have a try...finally construct:

int GetCost(request) {
    Checker checker = new Checker(request);
    try {
        int cost = 0;
        if (!checker.Important) 
            return 20;
        if (!checker.HasDiscount) 
            return 14;
        if (!checker.IsMember) 
            return 12;
        else
            return 10;
    } finally {
        delete checker;
    }
}

This will guarantee that no matter where which return statement ends the function, and even if there was an exception somewhere - delete checker will be invoked.