Inheritance??

Hi, In a moment of madness I have forgotten what is going on below, I think its inheritance:

Code:

---

TownList::Townlist( )
{
    start = NULL;
    end = NULL;
}

---

Townlist() is inherited by TownList??Hence the '::' Or could itbe implementation?

Any help would be super, thanks.

That is the implementation of TownList's constructor.

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Mats

Quote:

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Originally Posted by matsp

That is the implementation of TownList's constructor.

--
Mats

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Thanks!

The two tokens are different: TownList vs Townlist. I was going to say constructor too, but the OP, I think, recognizes the difference.

Is that valid?

I think that's just a typo - if it isn't, then it's implementing a member function (which should have a return type specifier) - and whilst it's technically valid to change the case of one letter in a name, it's BAD design to differentiate the name on such a small thing - just BOUND to make someone make a mistake in one way or another.

--
Mats

Quote:

---

Originally Posted by matsp

I think that's just a typo - if it isn't, then it's implementing a member function (which should have a return type specifier) - and whilst it's technically valid to change the case of one letter in a name, it's BAD design to differentiate the name on such a small thing - just BOUND to make someone make a mistake in one way or another.

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Mats

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I am revising linked lists and this was part of my revision page. But I couldn't remember what the '::' were being used for. This part of code, I used on the OP is creating an empty linked list in main.

sorry for any confusion

Yes, but the question is: Are you INTENTIONALLY using a TownList::Townlist, or is that a typo?

--
Mats

Quote:

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Originally Posted by matsp

Yes, but the question is: Are you INTENTIONALLY using a TownList::Townlist, or is that a typo?

--
Mats

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Oh ok, yes I have a class of TownList. This is the list class. Then, there is a class called TownNode.

If I wanted to add the first node to the list, I would do:

Code:

---

TownList::addFirstTown( string name )
{
    TownNode* current  = new TownNode ( name );
    start = current;
    end = current;
}

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I think that means yes, it was a typo. A consistently wrong typo.

Quote:

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Originally Posted by talksr

Oh ok, yes I have a class of TownList. This is the list class. Then, there is a class called TownNode.

If I wanted to add the first node to the list, I would do:

Code:

---

void TownList::addFirstTown( string name )
{
    TownNode* current  = new TownNode ( name );
    start = current;
    end = current;
}

---

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No you wouldn't because that won't compile. You forgot a return type.