include/wvlink.h

/* -*- Mode: C++ -*-
 * Worldvisions Weaver Software:
 *   Copyright (C) 1997-2002 Net Integration Technologies, Inc.
 *
 * WvLink is one element of a linked list.
 * Used by wvlinklist.h.
 */
#ifndef __WVLINK_H
#define __WVLINK_H
 
#include <stdlib.h>  // for 'NULL'

class WvLink
{
public:
    void *data;
    WvLink *next;
    const char *id;
 
private:
    bool autofree : 1;
 
public:
    WvLink(void *_data, bool _autofree, const char *_id = NULL):
        data(_data), next(NULL), id(_id), autofree(_autofree)
    {}
 
    WvLink(void *_data, WvLink *prev, WvLink *&tail, bool _autofree,
           const char *_id = NULL);
 
    bool get_autofree()
    {
        return autofree;
    }
 
    void set_autofree(bool _autofree)
    {
        autofree = _autofree;
    }
 
    void unlink(WvLink *prev)
    {
        prev->next = next;
        delete this;
    }
};
 
#define WvIterStuff(_type_) \
 \
    _type_ &operator () () const \
        { return *ptr(); } \
 \
    _type_ *operator -> () const \
        { return ptr(); } \
 \
    _type_ &operator* () const \
        { return *ptr(); }
 
#endif // __WVLINK_H