STL complient container?

[Jon Slaughter]

I made a simple container that contains an STL container(basicaly a wrapper)
and I want to use for each on it just like I would with an STL container.
How do I make my container STL complient so I can do something like the
following:


class Container
{
private:
vector<int> V;
public:
.........
};


void main()
{

for each (int i in Container)
{
*******************
};

return;
};


Any ideas? I'm looking for a very simple(less code) method to access the
elements of my container without using an iterator and this is as close as I
have seen since its works very very nice for STL containers... now if I
could easily make it work for mine.

Thanks,

Jon

 

[Rui Maciel]

I made a simple container that contains an STL container(basicaly a
wrapper) and I want to use for each on it just like I would with an STL
container. How do I make my container STL complient so I can do something
like the following:


class Container
{
private:
vector<int> V;
public:
........
};

Overload operator [] and make it return v

void main()

No no no.... the main function MUST return an int.

int main()
{ Container c;
for each (int i in Container)
{
*******************

std:: cout << c << std::endl; // there you go

};

return 0;
};

I believe that iterators are by far the best way to iterate through the
elements but I believe that this solution also works.


Hope this helps
Rui Maciel

 

[Moonlit]

Hi,

You can do either of two things. First implement the interface the for_each
operator expects:

First:
http://www.sgi.com/tech/stl/table_of_contents.html

(Look at for_each and the iterator)

Second (the lazy approach):

Just make variables and functions in your class that actually delegate
things to the ones in the vector

e.g.

begin() { return Vector.begin(); }
end() { return Vector.end(); }

etc.




--


Regards, Ron AF Greve

http://moonlit.xs4all.nl

 

[Marc Mutz]

Jon Slaughter wrote:

I made a simple container that contains an STL
container(basicaly a wrapper) and I want to use for each
on it just like I would with an STL container. How do I
make my container STL complient so I can do something
like the following:

<snip>

Have a look at the implementation of std::queue and
std::stack, which are container adapters.

Marc