class X containing an stl list<X> in MS Visual C++

[Joseph Lanctot]

I'm trying to create a class of nodes, where each node would contain a
list of other nodes. Ideally I would like it to work like this:

class node {
list<node> children;
};

However MS Development Environment 2002 V7.0 / MS .NET Framework V1.0
will not handle this class (g++ does). The following works but I must
explicitly dereference the pointers twice (and once implicity for the
reference???) in order to access anything with a list<node
*>::iterator.

class node {
list<node*> children;
};

Is there a simple way of getting this to work with less dereferences
to access a list item via an iterator and of course no copying of the
node class.

- JKL

 

[John Carson]

I'm trying to create a class of nodes, where each node would contain a
list of other nodes. Ideally I would like it to work like this:

class node {
list<node> children;
};

However MS Development Environment 2002 V7.0 / MS .NET Framework V1.0
will not handle this class (g++ does). The following works but I must
explicitly dereference the pointers twice (and once implicity for the
reference???) in order to access anything with a list<node
*>::iterator.

class node {
list<node*> children;
};

Is there a simple way of getting this to work with less dereferences
to access a list item via an iterator and of course no copying of the
node class.

- JKL

Simplest way is to upgrade to VC++ 7.1.

node is an incomplete type when list<node> children is declared. The
standard does not require that this compile, but recent versions of some
compilers will compile it. Apparently VC++7.0 won't.