Question

at the moment I have

void clistDeleteNode(clist_t *list,cnode_t **pnode) {
    cnode_t *node=*pnode;

    /* stuff done with node here, removed for clarity */

    free(*pnode);
    *pnode=0;
}

which is called with

clistDeleteNode(list,&aNode);

The function automatically NULL’s the end user pointer after its freed – I do this as it makes debugging and leak checking easier.

is there a more elegant way to pass a pointer to a function such as it an be modified without having to use *&*aNode ? (from the end users point of view)

Answer 1

Unlike C++, there isn’t a way of passing the address of aNode without having used the & operator in the calling function.

Using the pre-processor to hide what you’re actually doing would most likely be considered a less “elegant” way than the above clear way.