void* pointers arrggghhh

i must admit i''m more familiar with C++, but shouldn''t you put a conCommand pointer in your node struct? (just guessing)

You trying to access MyCmnd->name from myNode->data ?
In that case you should:

struct conCommand { char* name; int foo; } myCmnd; struct node { void* data; // designed to be generic node* pNext; } myNode; myNode->data = (void*)myCmnd->name; // Now myNode->data will return myCmnd->name.

The road to success is always under construction

I the problem is that you have forgotten to cast your pointers to the correct type.

say you initialise like this:

myNode.data = &myCmnd

first of all, to access the name field of the myCmnd struct, you would write something like:

(conCommand*(myNode.data))->name = whatever;

Notice that myNode is not a pointer so you don''t use ''->'', you use ''.''. Second, you need to cast the void pointer to data to be a pointer to a conCommand. This is because until you tell the compiler what that pointer is pointing to, it doesn''t know how to look at the memory.

Hope it helps and is right - any comments...

-DeVore

sorry for the multiple post - I kept getting invalid url errors when I pressed the reply button
-DeVore

You can use the delete option on when you edit a post

by the way, shouldn''t it be
((conCommand*)(myNode.data))->name = whatever;

I might have exagerated on the ()''s



You know, I never wanted to be a programmer...

Alexandre Moura