whats the difference???

This is a discussion on whats the difference??? within the C++ Programming forums, part of the General Programming Boards category; whats the difference.... int setDate(void) void setDate(int)...

  1. #1
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    whats the difference???

    whats the difference....
    int setDate(void)
    void setDate(int)

  2. #2
    Registered User actionbasti's Avatar
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    the difference is

    int setDate(void)
    void setDate(int)

    the difference my child is! that int setDate(void) returns to the calling function a integer but does not require any arguments thats why (void)-(However you could leave void out of the '()' becuase its unnessesary).
    and void setDate(int) doesnt return anything but needs an integer as an argument.


    this comes from some german geek. hahaha

  3. #3
    twm
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    >whats the difference....
    >int setDate(void)
    >void setDate(int)
    My guess would be that the author wanted setDate to both set the date and return the current date if no new date is given:
    Code:
    int setDate(void) {
      return date;
    }
    
    void setDate(int newDate) {
      date = newDate;
    }
    I think it would be better to have the date returned and a default argument to determine if the date should be changed:
    Code:
    int setDate(int newDate=-1) {
      if (newDate != -1)
        date = newDate;
    
      return date;
    }
    The information given in this message is known to work on FreeBSD 4.8 STABLE.
    *The above statement is false if I was too lazy to test it.*
    Please take note that I am not a technical writer, nor do I care to become one.
    If someone finds a mistake, gleaming error or typo, do me a favor...bite me.
    Don't assume that I'm ever entirely serious or entirely joking.

  4. #4
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    don't confuse people with default arguments unless you're going to explain

  5. #5
    twm
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    >don't confuse people with default arguments unless you're going to explain
    Default arguments aren't any more confusing than function overloading, which wasn't even touched on earlier in the thread. If you're going to criticize, at least do so fairly for everyone.
    The information given in this message is known to work on FreeBSD 4.8 STABLE.
    *The above statement is false if I was too lazy to test it.*
    Please take note that I am not a technical writer, nor do I care to become one.
    If someone finds a mistake, gleaming error or typo, do me a favor...bite me.
    Don't assume that I'm ever entirely serious or entirely joking.

  6. #6
    Registered User jlou's Avatar
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    I'd prefer Get/Set:
    Code:
    int getDate() { return date; }
    void setDate(int newDate) { date = newDate; }
    or something that makes it look like a property:
    Code:
    int Date() { return date; }
    void Date(int newDate) { date = newDate; }
    I doubt you'd want to call a method setDate and have it actually get the date.

  7. #7
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    Originally posted by Trauts
    don't confuse people with default arguments unless you're going to explain
    Sorry

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