function definition return type?

This is a discussion on function definition return type? within the C++ Programming forums, part of the General Programming Boards category; In the following code (a function definition) CurrencyList is the name of a class. Is the first CurrencyList in the ...

  1. #1
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    function definition return type?

    In the following code (a function definition) CurrencyList is the name of a class. Is the first CurrencyList in the code a return type? If so, what does it mean for the return type to be of a class type? Does it mean an object of the class will be returned?
    Code:
    CurrencyList CurrencyList :: perfectChange(int amountToChange) const
    {
      int amt(size_);
      for (int i = 0; i<size_; i++)
         divMod(amountToChange, denom_[i].value, amt[i], amountToChange);
      return CurrencyList(amt);
    }

  2. #2
    Skunkmeister Stoned_Coder's Avatar
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    yes your understanding is correct.
    Free the weed!! Class B to class C is not good enough!!
    And the FAQ is here :- http://faq.cprogramming.com/cgi-bin/smartfaq.cgi

  3. #3
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    If so, what does it mean for the return type to be of a class type?

    The same thing it does as for a basic type like int. For instance, if your function returned an int, you would need to do something like this:

    int result=my_func();

    So, if the return type is CurrencyList, then you need to do something like this:

    CurrencyList myCL = my_func();

    Then you can use the variable myCL to access the member functions of the CurrencyList class. If the class contained a function showList() that displayed the data members, you could do this:

    myCL.showList();

    Does it mean an object of the class will be returned?

    Yep.

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